Geas Coaching 1.pdf
This document was uploaded by user and they confirmed that they have the permission to share it. If you are author or own the copyright of this book, please report to us by using this DMCA report form. Report DMCA
Overview
Download & View Geas Coaching 1.pdf as PDF for free.
More details
- Words: 3,098
- Pages: 9
Loading documents preview...
GEAS Coaching #1 DLSU-‐M Compilation ©
1. 2. 3. 4.
5.
6.
7.
8.
9.
10.
Law of inertia Ans. First Law of Motion Law of acceleration Ans. Second Law of Motion Law of reaction Ans. Third Law of Motion No two electrons in the same atom can have the same set of four quantum numbers Ans. Pauli Exclusion Principle Electrons fill the orbital starting with the lowest energy to higher energy orbital Ans. Aufbau Principle Upward force of a body (buoyancy) in a liquid Ans. Archimedes Principle For a steady flow, the sum of the pressure head, the elevation head and the velocity head remains constant Ans. Bernoulli’s Theorem New source of disturbance on a wave front, sending wavelets in forward directions Ans. Huygen’s Principle Sum of individual moments about a point caused by multiple concurrent forces equals moment of resultant force Ans. Varignon’s Theorem Acids yield hydrogen ions whiles gases yield hydroxide ions
11.
12.
13.
14.
15. 16. 17.
18.
Ans. Arrhenius Theory The internal energy of a closed system is equal to the sum of the amount of hear energy and the work done on the system. (Conservation of Energy) Ans. First Law of Thermodynamics Total entropy reaches a maximum value over time Ans. Second Law of Thermodynamics Entropy of all systems is zero at absolute zero Ans. Third Law of Thermodynamics A chemical compound always contains exactly the same proportion of elements by mass Ans. Law of Definite Proportions Constant temperature Ans. Boyle’s Law Constant pressure Ans. Charle’s Law Equal volumes of ideal gasses at the same temperature and pressure contain the same number of particles/molecules Ans. Avogadro’s Law If there is no net external force acting upon a system of bodies, the momentum of the system does not change 1 of 9
19.
20. 21.
22.
23. 24. 25. 26. 27. 28. 29.
Ans. Law of Conservation of Momentum The work done by the net force on a particle equals the change in the particles kinetic energy Ans. Work Energy Theorem E-‐commerce act Ans. 8792 Lower energy level should be filled up first before occupying the higher energy level Ans. Hund’s Rule Law the predicts the dew point of fuel gas Ans. Dalton’s Law The reverse effective force Ans. D’Alembert’s Principle Who discovered the electron? Ans. J.J Thomson Who discovered the Neutron? Ans. James Chadwick Who discovered the Proton? Ans. Rutherford Credited for the periodic table Ans. Demitri Medeleev Discovered radioactivity Ans. Henri Becquerel Charge of electron Ans. -1.602 x 10^-19
GEAS Coaching #1 DLSU-‐M Compilation ©
30.
31.
32. 33.
34.
35. 36. 37. 38. 39.
40.
Mass of proton is ______ times larger than mass of electron Ans. 1836 Mass of neutron is _______ times larger than mass of electron Ans. 1839 Atomic number of an element Ans. Number of protons Atoms of the same element but different masses Ans. Isotopes Formed when electrons are removed or added Ans. Ion Identity number of an atom Ans. Atomic number Elements in Group 1A Ans. Alkali Metals Elements in Group 2A Ans. Alkali Earth Metals Halogens belong to Ans. Group 7A Why are noble gasses called inert gasses? Ans. Can’t be chemically combined How many elements in period 1? Ans. 2
41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54.
How many elements in period 2? Ans. 8 How many elements in period 3? Ans. 8 How many elements in period 4 and 5? Ans. 18 How many elements in period 6? Ans. 32 14 elements in period 7? Ans. Actenides Radioactive elements Ans. Actinides Elements in period 6? Ans. Lantanides Rare earth elements Ans. Lantanides Most abundant metal Ans. Aluminum Most reactive metal (electronegative) Ans. Fluorine Rarest halogen Ans. Astatine Used in Thermocouple Ans. Constantine Metal with lowest boiling point Ans. Mercury Content of prion and DDT 2 of 9
55.
56. 57. 58.
59.
60.
61. 62.
63.
64.
65.
Ans. Chlorine and Fluorine Slight increase in resistance with increase in temperature Ans. Alloy Most corrosive Ans. Sulphuri Acid Found in dextrose and blood sugar Ans. Glucose 14C6 Ans. 6 protons, 6 electrons, 8 neutrons Main energy level where the valence electrons belong Ans. Valence shell Subshell p has a maximum of _____ electrons Ans. 2 Shell Q is in what energy level Ans. 7 First element in the second period with 3 protons Ans. Lithium Compound formed by carbon, hydrogen and oxygen Ans. Carbohydrates The simplest compound formed by Nitrogen and Hydrogen Ans. Ammonia (NH3) Molecular formula of monosaccharide Ans. C6H12O6
GEAS Coaching #1 DLSU-‐M Compilation ©
66. 67. 68. 69. 70. 71. 72. 73. 74. 75. 76. 77. 78.
2 up-‐quarks, 1 down-‐quark Ans. Proton 2 down-‐quarks, 1 up-‐quarks Ans. Neutron More neutrons than protons Ans. Heavy atoms Found in plants Ans. Cellulose Low thermal conductivity Ans. Nichrome 1 proton and 1 neutron Ans. Deuterium 1 proton and 0 neutron Ans. Protium Source of protein Ans. Amino acids Bluish black color with purple fumes Ans. Iodine Greenish yellow Ans. Chlorine 8 valence electrons Ans. Van Der Waals Not soluble in H2O Ans. Silicon Dioxide Shows valence electrons Ans. Electron Dot
79. 80. 81. 82. 83. 84. 85. 86.
87.
88. 89. 90. 91.
Protons + Neutrons Ans. Nucleon Metal + Nonmetals Ans. Ceramic Metal + Other elements Ans. Alloy Third most conductive metal Ans. Gold Shield against xrays and gamma rays Ans. Lead Diameter of the nucleus Ans. 10^-15 10^-16m Atom radius Ans. 10^-14 Alloy of mercury with another metal or metals Ans. Amalgram Elements with higher atomic number than Uranium Ans. Transuranium Number of hydrocarbon rings Ans. Aliphatic Mass relations Ans. Stoichiometry Different levels of H2O passed on tubes Ans. Capillarity Oxidation occurs at ____ Ans. Anode 3 of 9
92. 93. 94. 95. 96. 97.
98. 99.
100.
101. 102. 103.
2 protons, 2 neutrons to stabilize Ans. Alpha decay Electrons uses gamma ray Ans. Negative Beta Decay Proton uses gamma ray Ans. Positive Beta Decay Common doping element for silicon Ans. Antimony Reacts with Group 1A and 2A Ans. Halogens Found in green leafy and yellow vegetables Ans. Vitamin A Sharing of electron Ans. Covalent bonding Electrostatic attraction holding together oppositely Ans. Ionic Bonding Reacts with H2O only when water is at boiling point Ans. Magnesium Loses electrons easily Ans. Alkali metals Most common defect of crystals Ans. Line defect Extra hole and electron in lattice Ans. Schottky defect
GEAS Coaching #1 DLSU-‐M Compilation ©
104. 105. 106. 107. 108. 109. 110. 111.
112.
113.
114.
115.
Random arrangement Ans. Amorphous Fixed and predictable arrangement Ans. Crystalline Many crystallites of varying sizes Ans. Polycrystalline Atoms in a simple cubic Ans. 1 Negative electron Ans. Negatron Repetitive form Ans. Crystalline Group 1A + Chlorine Ans. Salt Refers to the number of atoms in exactly 12g of carbon 12 Ans. Avogadro’s number Mixing of gases due to molecular motion Ans. Diffusion Substance that can’t be broken down further Ans. Element Compounds containing hydrogen and other elements Ans. Hydrides SolidGas Ans. Sublimation
116.
117. 118. 119. 120. 121.
122.
123.
124. 125. 126.
Refers to the amount of heat absorbed by 1mole of a substance to change from solid to liquid Ans. Molar heat of fusion Building block of matter Ans. Atom pH Ans. Power of hydrogen ion pH 1-‐6 Ans. Acidic pH 7 Ans. Neutral Crystalline structure that has coordination number of 12 Ans. Face-centered 122. Crystalline structure that has coordination number of 8 Ans. Body-centered What crystalline structure has a packing factor of 0.52? Ans. Simple-cubic Larger than parent Ans. Anion Smaller than parent Ans. Cation What crystalline structure has a packing factor of 0.74? Ans. Face-centered 4 of 9
127.
128.
129.
130. 131.
132.
133.
134.
135.
What do you call the distinct pattern in the space in which the atoms of metals arrange themselves when they combine to produce a substance of recognizable size? Ans. Space-lattice Atoms arranged in repeating structures in a crystalline structure Ans. Unit cell What is a reference sheet for element that can be used to form engineering materials? Ans. Periodic Table Conductivity of 99.9% pure gold? Ans. 72.6% Conductivity of a pure annealed silver wire? Ans. 108.8% Matter can be converted to energy and vice versa Ans. Einstein’s Theory What are heavy particles that conducts proton and neutron Ans. Baryons What particles have rest masses ranging to about 0.1 AMU? Ans. Mesons What particles include electron, mu, neutrino? Ans. Leptons
GEAS Coaching #1 DLSU-‐M Compilation ©
136.
137.
138.
139.
140.
141.
142.
143.
What is the term used to describe the amount of energy that is given of when an electron moves from one orbit to a lower orbit? Ans. Quantum What is an integer which determines the angular momentum of the electron due to orbital motions Ans. Orbital quantum number What is an integer which determines the angular momentum of the electron along a specific direction Ans. Magnetic quantum number What is the number which is used to describe the intrinsic spin angular momentum of the electron? Ans. Spin quantum number What is emitted when an electron changes from a higher energy to a lower energy orbit Ans. Photon A hydrogen atom is in the ground state when its electron is Ans. In the innermost orbit What is generally accepted nominal mass of a proton Ans. 1AMU Combination of two materials that has properties that the components materials do not have by themselves Ans. Composite
144. 145. 146. 147.
148.
149. 150.
151. 152. 153.
154.
Mass of electron Ans. 1.672 x 10^-28 g Mass of proton Ans. 1.672 x 10^-24 g Mass of neutron Ans. 1.675 x 10^-24 Angular momentum of neutron, proton and electron Ans. h/4(pi) What alkali metals are protected from air, etc? Ans. Because alkali metals are the most reactive Least conductive material? Ans. Nichrome Physical property of a material that refers to the temperature at which ferro magnetic materials can no longer be magnetized by outside forces Ans. Curie point Curie point of iron Ans. 770°C Natural magnet Ans. Lodestone Material used in making permanent magnet Ans. Hardened steel Inferred absolute temperature of annealed copper? Ans. -234.5°C 5 of 9
155.
156.
157.
158.
159. 160. 161. 162. 163. 164. 165.
Which material has a permeability slightly greater than 1? Ans. Aluminum Conductivity of a 99.5% pure aluminum? Ans. 63% Conductivity of a pure annealed copper wire Ans. 102.1% Gas produced by the action of sunlight on automobile exhaust? Ans. Ozone Modern Atomic Theory Ans. Dalton 1 joule equals _____ ergs Ans. 10^7 Unit of impulse Ans. N-s Equivalent unit of poise Ans. Dyne-sec/cm^2 Very soft metals Ans. Alkali metals Elements in the center gap Ans. All metals Elements found in the center of the periodic table Ans. Transition metals
GEAS Coaching #1 DLSU-‐M Compilation ©
166.
167. 168.
169.
170. 171.
172.
173. 174. 175. 176. 177.
Elements found in the left and right of the periodic table Ans. Main groups Atomic number of oxygen Ans. 8 Most common alloying ingredient in copper Ans. Zinc Compounds containing halogens and other elements except oxygen Ans. Halides Number of postulates of Niels Bohr Ans. 4 Electron orbits are discrete and non-‐ radiating Ans. First postulate of Niels Bohr How many fundamental substances are present in nature? Ans. 92 Fluid that conducts electricity Ans. Electrolyte Specific gravity Ans. Relative density Plastics Ans. Polymers “meros” Ans. Parts Alloy with constant resistance at all temperatures Ans. Eureka
178. 179. 180.
181.
182.
183. 184. 185.
186. 187.
188.
Highest potential difference Ans. Dielectric strength Resistance to plastic deformation Ans. Hardness Ratio of ultimate failure to yielding strain Ans. Ductility Specified deviation from proportionality of stress and strain Ans. Yield Strength Ratio of output force and input force Ans. Actual mechanical advantage Input distance to output distance ratio Ans. Ideal mechanical advantage Ratio of transverse strain to axial strain Ans. Poisson’s Ratio ratio of velocity of light in vacuum to velocity of light in medium Ans. Refractive index Gravity Ans. Conservative force Ratio of velocity before and after impact Ans. Coefficient of restitution Kinetic energy lost to heat, sound energy, etc. Ans. Inelastic collision 6 of 9
189.
190.
191.
192. 193. 194.
195.
196.
197. 198.
Collision when maximum kinetic energy is lost Ans. Completely inelastic collision Body about a given axis is a rotational analog of mass of the body distributed about the axis Ans. Moment of inertia Product of moment of inertia and angular speed. Ans. Angular momentum Maximum static friction Ans. Static Friction Kinetic friction Ans. Sliding friction Coefficient of kinetic friction _______ coefficient of static friction Ans. Is always less than Friction progressively reduces the amplitude of the vibrations Ans. Damped harmonic oscillator What occurs whenever a restoring force acts on a body on the opposite direction to its displacement from its equilibrium position Ans. Simple Harmonic motion Unit of Momentum Ans. Kg-m/sec One slug = _____ Ans. 14.6 kg
GEAS Coaching #1 DLSU-‐M Compilation ©
199. 200. 201. 202. 203.
204.
205. 206. 207.
208.
209.
One lb = _______ Ans. 4.45 N 1 Kw-‐h =______ Ans. 3.6 MJ Rest energy Ans. Mass Potential energy Ans. Position Force applied to 1 kg with an acceleration of 1 m/s^2 Ans. Newton Work done for a reversible isometric system Ans. Zero Thermodynamic properties Ans. Temp. pressure volume 1 Atm =_____ Ans. 760 torr Maximum amount of heat that can be converted to mechanical energy Ans. Depends on intake and exhaust temperature Maximum amount of mechanical energy can be converted into heat Ans. 100% Physical property of material that refers to heat flow per unit time. Ans. Thermal conductivity
210. 211.
212. 213.
214.
215. 216. 217. 218.
219.
Internal liquid friction Ans. Viscosity Ratio of amount of heat to raise the temp of a unit mass to 1 degree to the heat required to raise the temp of the same mass of water to 1 degree Ans. Specific heat Compressibility factor of ideal gas Ans. 1 Average kinetic energy of gas molecule is proportional to: Ans. Absolute temp of gas What radiation produces electrons of the highest energy Ans. Gamma rays Elastic modulus that exist in liquids Ans. Bulk modulus Liquefies or solidifies on cooling Ans. Melting point Period of the pendulum depends on: Ans. Length Device used to increase pressure by slowing down the liquid Ans. Diffuser Substance with melting point of 28 degrees and liquid at warm temperature. Ans. Cesium
7 of 9
220.
221.
222. 223. 224. 225. 226. 227. 228. 229. 230. 231.
Common alloy of 80% nickel and 20% chromium, has high electrical resistance Ans. Nichrome Copper nickel alloy usually consisting of 60% copper and 40% nickel. Commonly known as thermocouple. Ans. INVAR Retentivity a.k.a Ans. Remanence Coefficient of inelastic restitution Ans. 0 Coefficient of elastic restitution Ans. 1 Absolute zero rankine Ans. -460 Gas molecules Ans. Atomization Device to measure radioactivity Ans. Geiger counter Pendulum Ans. 2 sec period Eliminate odor Ans. Aeration Airplane resistance Ans. Drag Isobaric Ans. Constant pressure
GEAS Coaching #1 DLSU-‐M Compilation ©
232. 233. 234. 235. 236. 237. 238. 239. 240.
241.
242.
243. 244.
Harm produced by industrial plants Ans. Acid rain Unit of radiation Ans. Curie The start and end are the same Ans. Cycle Undergoes series of changes Ans. Process Latent heat of vaporization Ans. 2260 kJ/kg Latent heat of fusion Ans. 333 kJ/kg RA 9292 Rule 1 Ans. Statement of Policies RA 9292 Rule 2 Ans. Composition of Board RA 9292 Rule 3 Ans. License, Examination and Registration Years of residency to become a board member Ans. 5 Years Years of practice to become board member Ans. 10 Years More experiments Ans. Scientific Theory Device that splits up atoms Ans. Nuclear Reactor
245.
246. 247. 248.
249. 250. 251.
252.
253.
254.
Average ratio of stress to strain of material Ans. Secant Modulus First use of mass spectograph Ans. Francis Aston Royal Water Ans. Aqua Regia 95% Aluminum, 4% Copper, and the rest Magnesium Ans. Duraluminum Density of Luminous Flux Ans. Illumination Volume of 1 kg of pure water at 4°C Ans. Liter Use to determine the mass of atomic particles Ans. Mass Spectograph The ___ of a pivotal object is that point at which it can be struck without producing a reaction force on its pivot Ans. Center of Oscillation When the sum of external torques acting on a system is zero, the total angular momentum of the system remains constant. Ans. Conservation of Angular Momentum 0.25 % – 0.5 % Carbon Ans. Mild Steel 8 of 9
255. 256. 257. 258. 259. 260. 261.
262.
263.
264.
265.
More than 0.3 % Carbon Ans. Hard Steel Lead plus Tin Ans. Solder 88% Copper plus 12% Tin Ans. Bronze 67% Copper plus 23% Zinc Ans. Brass 1/amu Ans. Avogadro’s Number Molecular Weight / Liter Ans. Formality Property of a material which is a time dependent permanent strain under stress Ans. Creep Magnitude of force is directly proportional to ____ and inversely proportional to ____ Ans. Speed, Radius of path Forms 8 pairs of electrons when bonded Ans. Vander Waals Bonding A symbolic representation to emphasize the valence shell of an atom Ans. Electron Dot Diagram Device used to measure gas pressure Ans. Manometer
GEAS Coaching #1 DLSU-‐M Compilation ©
266.
267.
268.
269.
270. 271.
272.
273.
274. 275.
The ratio of amount of moisture in the air to the amount of air could contain at a given temperature Ans. Relative Humidity Mass of water vapor per unit volume of air Ans. Absolute Humidity An instrument used to compare the luminous intensity of two light sources Ans. Photometer Branch of physics dealing with the behavior of matter at temperatures approaching absolute zero Ans. Cryogenics Particle Accelerator Ans. Cyclotron CGS electrostatic unit of electromotive force Ans. Statvolt Cohesive attraction that causes the liquid to minimize its surface area Ans. Surface Tension Mass stress before permanent deformation Ans. Elastic Limit Also known as modulus of rigidity Ans. Shear Modulus Where free electrons move Ans. Conduction Band
276.
277.
278.
279. 280. 281.
282. 283.
According to the modern view of atomic model Ans. Electron Cloud Device that transfers heat between fluids without mixing the two Ans. Heat Exchanger Energy required to change solid to liquid or vice versa Ans. Heat of fusion Quantity of matter in space for study Ans. System Mass or region outside the system Ans. Surroundings The flow of matter and energy across the boundary Ans. Open System No flow of matter across the boundary Ans. Closed System Quick assets over liabilities Ans. Acid Test Ration
9 of 9
1. 2. 3. 4.
5.
6.
7.
8.
9.
10.
Law of inertia Ans. First Law of Motion Law of acceleration Ans. Second Law of Motion Law of reaction Ans. Third Law of Motion No two electrons in the same atom can have the same set of four quantum numbers Ans. Pauli Exclusion Principle Electrons fill the orbital starting with the lowest energy to higher energy orbital Ans. Aufbau Principle Upward force of a body (buoyancy) in a liquid Ans. Archimedes Principle For a steady flow, the sum of the pressure head, the elevation head and the velocity head remains constant Ans. Bernoulli’s Theorem New source of disturbance on a wave front, sending wavelets in forward directions Ans. Huygen’s Principle Sum of individual moments about a point caused by multiple concurrent forces equals moment of resultant force Ans. Varignon’s Theorem Acids yield hydrogen ions whiles gases yield hydroxide ions
11.
12.
13.
14.
15. 16. 17.
18.
Ans. Arrhenius Theory The internal energy of a closed system is equal to the sum of the amount of hear energy and the work done on the system. (Conservation of Energy) Ans. First Law of Thermodynamics Total entropy reaches a maximum value over time Ans. Second Law of Thermodynamics Entropy of all systems is zero at absolute zero Ans. Third Law of Thermodynamics A chemical compound always contains exactly the same proportion of elements by mass Ans. Law of Definite Proportions Constant temperature Ans. Boyle’s Law Constant pressure Ans. Charle’s Law Equal volumes of ideal gasses at the same temperature and pressure contain the same number of particles/molecules Ans. Avogadro’s Law If there is no net external force acting upon a system of bodies, the momentum of the system does not change 1 of 9
19.
20. 21.
22.
23. 24. 25. 26. 27. 28. 29.
Ans. Law of Conservation of Momentum The work done by the net force on a particle equals the change in the particles kinetic energy Ans. Work Energy Theorem E-‐commerce act Ans. 8792 Lower energy level should be filled up first before occupying the higher energy level Ans. Hund’s Rule Law the predicts the dew point of fuel gas Ans. Dalton’s Law The reverse effective force Ans. D’Alembert’s Principle Who discovered the electron? Ans. J.J Thomson Who discovered the Neutron? Ans. James Chadwick Who discovered the Proton? Ans. Rutherford Credited for the periodic table Ans. Demitri Medeleev Discovered radioactivity Ans. Henri Becquerel Charge of electron Ans. -1.602 x 10^-19
GEAS Coaching #1 DLSU-‐M Compilation ©
30.
31.
32. 33.
34.
35. 36. 37. 38. 39.
40.
Mass of proton is ______ times larger than mass of electron Ans. 1836 Mass of neutron is _______ times larger than mass of electron Ans. 1839 Atomic number of an element Ans. Number of protons Atoms of the same element but different masses Ans. Isotopes Formed when electrons are removed or added Ans. Ion Identity number of an atom Ans. Atomic number Elements in Group 1A Ans. Alkali Metals Elements in Group 2A Ans. Alkali Earth Metals Halogens belong to Ans. Group 7A Why are noble gasses called inert gasses? Ans. Can’t be chemically combined How many elements in period 1? Ans. 2
41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54.
How many elements in period 2? Ans. 8 How many elements in period 3? Ans. 8 How many elements in period 4 and 5? Ans. 18 How many elements in period 6? Ans. 32 14 elements in period 7? Ans. Actenides Radioactive elements Ans. Actinides Elements in period 6? Ans. Lantanides Rare earth elements Ans. Lantanides Most abundant metal Ans. Aluminum Most reactive metal (electronegative) Ans. Fluorine Rarest halogen Ans. Astatine Used in Thermocouple Ans. Constantine Metal with lowest boiling point Ans. Mercury Content of prion and DDT 2 of 9
55.
56. 57. 58.
59.
60.
61. 62.
63.
64.
65.
Ans. Chlorine and Fluorine Slight increase in resistance with increase in temperature Ans. Alloy Most corrosive Ans. Sulphuri Acid Found in dextrose and blood sugar Ans. Glucose 14C6 Ans. 6 protons, 6 electrons, 8 neutrons Main energy level where the valence electrons belong Ans. Valence shell Subshell p has a maximum of _____ electrons Ans. 2 Shell Q is in what energy level Ans. 7 First element in the second period with 3 protons Ans. Lithium Compound formed by carbon, hydrogen and oxygen Ans. Carbohydrates The simplest compound formed by Nitrogen and Hydrogen Ans. Ammonia (NH3) Molecular formula of monosaccharide Ans. C6H12O6
GEAS Coaching #1 DLSU-‐M Compilation ©
66. 67. 68. 69. 70. 71. 72. 73. 74. 75. 76. 77. 78.
2 up-‐quarks, 1 down-‐quark Ans. Proton 2 down-‐quarks, 1 up-‐quarks Ans. Neutron More neutrons than protons Ans. Heavy atoms Found in plants Ans. Cellulose Low thermal conductivity Ans. Nichrome 1 proton and 1 neutron Ans. Deuterium 1 proton and 0 neutron Ans. Protium Source of protein Ans. Amino acids Bluish black color with purple fumes Ans. Iodine Greenish yellow Ans. Chlorine 8 valence electrons Ans. Van Der Waals Not soluble in H2O Ans. Silicon Dioxide Shows valence electrons Ans. Electron Dot
79. 80. 81. 82. 83. 84. 85. 86.
87.
88. 89. 90. 91.
Protons + Neutrons Ans. Nucleon Metal + Nonmetals Ans. Ceramic Metal + Other elements Ans. Alloy Third most conductive metal Ans. Gold Shield against xrays and gamma rays Ans. Lead Diameter of the nucleus Ans. 10^-15 10^-16m Atom radius Ans. 10^-14 Alloy of mercury with another metal or metals Ans. Amalgram Elements with higher atomic number than Uranium Ans. Transuranium Number of hydrocarbon rings Ans. Aliphatic Mass relations Ans. Stoichiometry Different levels of H2O passed on tubes Ans. Capillarity Oxidation occurs at ____ Ans. Anode 3 of 9
92. 93. 94. 95. 96. 97.
98. 99.
100.
101. 102. 103.
2 protons, 2 neutrons to stabilize Ans. Alpha decay Electrons uses gamma ray Ans. Negative Beta Decay Proton uses gamma ray Ans. Positive Beta Decay Common doping element for silicon Ans. Antimony Reacts with Group 1A and 2A Ans. Halogens Found in green leafy and yellow vegetables Ans. Vitamin A Sharing of electron Ans. Covalent bonding Electrostatic attraction holding together oppositely Ans. Ionic Bonding Reacts with H2O only when water is at boiling point Ans. Magnesium Loses electrons easily Ans. Alkali metals Most common defect of crystals Ans. Line defect Extra hole and electron in lattice Ans. Schottky defect
GEAS Coaching #1 DLSU-‐M Compilation ©
104. 105. 106. 107. 108. 109. 110. 111.
112.
113.
114.
115.
Random arrangement Ans. Amorphous Fixed and predictable arrangement Ans. Crystalline Many crystallites of varying sizes Ans. Polycrystalline Atoms in a simple cubic Ans. 1 Negative electron Ans. Negatron Repetitive form Ans. Crystalline Group 1A + Chlorine Ans. Salt Refers to the number of atoms in exactly 12g of carbon 12 Ans. Avogadro’s number Mixing of gases due to molecular motion Ans. Diffusion Substance that can’t be broken down further Ans. Element Compounds containing hydrogen and other elements Ans. Hydrides SolidGas Ans. Sublimation
116.
117. 118. 119. 120. 121.
122.
123.
124. 125. 126.
Refers to the amount of heat absorbed by 1mole of a substance to change from solid to liquid Ans. Molar heat of fusion Building block of matter Ans. Atom pH Ans. Power of hydrogen ion pH 1-‐6 Ans. Acidic pH 7 Ans. Neutral Crystalline structure that has coordination number of 12 Ans. Face-centered 122. Crystalline structure that has coordination number of 8 Ans. Body-centered What crystalline structure has a packing factor of 0.52? Ans. Simple-cubic Larger than parent Ans. Anion Smaller than parent Ans. Cation What crystalline structure has a packing factor of 0.74? Ans. Face-centered 4 of 9
127.
128.
129.
130. 131.
132.
133.
134.
135.
What do you call the distinct pattern in the space in which the atoms of metals arrange themselves when they combine to produce a substance of recognizable size? Ans. Space-lattice Atoms arranged in repeating structures in a crystalline structure Ans. Unit cell What is a reference sheet for element that can be used to form engineering materials? Ans. Periodic Table Conductivity of 99.9% pure gold? Ans. 72.6% Conductivity of a pure annealed silver wire? Ans. 108.8% Matter can be converted to energy and vice versa Ans. Einstein’s Theory What are heavy particles that conducts proton and neutron Ans. Baryons What particles have rest masses ranging to about 0.1 AMU? Ans. Mesons What particles include electron, mu, neutrino? Ans. Leptons
GEAS Coaching #1 DLSU-‐M Compilation ©
136.
137.
138.
139.
140.
141.
142.
143.
What is the term used to describe the amount of energy that is given of when an electron moves from one orbit to a lower orbit? Ans. Quantum What is an integer which determines the angular momentum of the electron due to orbital motions Ans. Orbital quantum number What is an integer which determines the angular momentum of the electron along a specific direction Ans. Magnetic quantum number What is the number which is used to describe the intrinsic spin angular momentum of the electron? Ans. Spin quantum number What is emitted when an electron changes from a higher energy to a lower energy orbit Ans. Photon A hydrogen atom is in the ground state when its electron is Ans. In the innermost orbit What is generally accepted nominal mass of a proton Ans. 1AMU Combination of two materials that has properties that the components materials do not have by themselves Ans. Composite
144. 145. 146. 147.
148.
149. 150.
151. 152. 153.
154.
Mass of electron Ans. 1.672 x 10^-28 g Mass of proton Ans. 1.672 x 10^-24 g Mass of neutron Ans. 1.675 x 10^-24 Angular momentum of neutron, proton and electron Ans. h/4(pi) What alkali metals are protected from air, etc? Ans. Because alkali metals are the most reactive Least conductive material? Ans. Nichrome Physical property of a material that refers to the temperature at which ferro magnetic materials can no longer be magnetized by outside forces Ans. Curie point Curie point of iron Ans. 770°C Natural magnet Ans. Lodestone Material used in making permanent magnet Ans. Hardened steel Inferred absolute temperature of annealed copper? Ans. -234.5°C 5 of 9
155.
156.
157.
158.
159. 160. 161. 162. 163. 164. 165.
Which material has a permeability slightly greater than 1? Ans. Aluminum Conductivity of a 99.5% pure aluminum? Ans. 63% Conductivity of a pure annealed copper wire Ans. 102.1% Gas produced by the action of sunlight on automobile exhaust? Ans. Ozone Modern Atomic Theory Ans. Dalton 1 joule equals _____ ergs Ans. 10^7 Unit of impulse Ans. N-s Equivalent unit of poise Ans. Dyne-sec/cm^2 Very soft metals Ans. Alkali metals Elements in the center gap Ans. All metals Elements found in the center of the periodic table Ans. Transition metals
GEAS Coaching #1 DLSU-‐M Compilation ©
166.
167. 168.
169.
170. 171.
172.
173. 174. 175. 176. 177.
Elements found in the left and right of the periodic table Ans. Main groups Atomic number of oxygen Ans. 8 Most common alloying ingredient in copper Ans. Zinc Compounds containing halogens and other elements except oxygen Ans. Halides Number of postulates of Niels Bohr Ans. 4 Electron orbits are discrete and non-‐ radiating Ans. First postulate of Niels Bohr How many fundamental substances are present in nature? Ans. 92 Fluid that conducts electricity Ans. Electrolyte Specific gravity Ans. Relative density Plastics Ans. Polymers “meros” Ans. Parts Alloy with constant resistance at all temperatures Ans. Eureka
178. 179. 180.
181.
182.
183. 184. 185.
186. 187.
188.
Highest potential difference Ans. Dielectric strength Resistance to plastic deformation Ans. Hardness Ratio of ultimate failure to yielding strain Ans. Ductility Specified deviation from proportionality of stress and strain Ans. Yield Strength Ratio of output force and input force Ans. Actual mechanical advantage Input distance to output distance ratio Ans. Ideal mechanical advantage Ratio of transverse strain to axial strain Ans. Poisson’s Ratio ratio of velocity of light in vacuum to velocity of light in medium Ans. Refractive index Gravity Ans. Conservative force Ratio of velocity before and after impact Ans. Coefficient of restitution Kinetic energy lost to heat, sound energy, etc. Ans. Inelastic collision 6 of 9
189.
190.
191.
192. 193. 194.
195.
196.
197. 198.
Collision when maximum kinetic energy is lost Ans. Completely inelastic collision Body about a given axis is a rotational analog of mass of the body distributed about the axis Ans. Moment of inertia Product of moment of inertia and angular speed. Ans. Angular momentum Maximum static friction Ans. Static Friction Kinetic friction Ans. Sliding friction Coefficient of kinetic friction _______ coefficient of static friction Ans. Is always less than Friction progressively reduces the amplitude of the vibrations Ans. Damped harmonic oscillator What occurs whenever a restoring force acts on a body on the opposite direction to its displacement from its equilibrium position Ans. Simple Harmonic motion Unit of Momentum Ans. Kg-m/sec One slug = _____ Ans. 14.6 kg
GEAS Coaching #1 DLSU-‐M Compilation ©
199. 200. 201. 202. 203.
204.
205. 206. 207.
208.
209.
One lb = _______ Ans. 4.45 N 1 Kw-‐h =______ Ans. 3.6 MJ Rest energy Ans. Mass Potential energy Ans. Position Force applied to 1 kg with an acceleration of 1 m/s^2 Ans. Newton Work done for a reversible isometric system Ans. Zero Thermodynamic properties Ans. Temp. pressure volume 1 Atm =_____ Ans. 760 torr Maximum amount of heat that can be converted to mechanical energy Ans. Depends on intake and exhaust temperature Maximum amount of mechanical energy can be converted into heat Ans. 100% Physical property of material that refers to heat flow per unit time. Ans. Thermal conductivity
210. 211.
212. 213.
214.
215. 216. 217. 218.
219.
Internal liquid friction Ans. Viscosity Ratio of amount of heat to raise the temp of a unit mass to 1 degree to the heat required to raise the temp of the same mass of water to 1 degree Ans. Specific heat Compressibility factor of ideal gas Ans. 1 Average kinetic energy of gas molecule is proportional to: Ans. Absolute temp of gas What radiation produces electrons of the highest energy Ans. Gamma rays Elastic modulus that exist in liquids Ans. Bulk modulus Liquefies or solidifies on cooling Ans. Melting point Period of the pendulum depends on: Ans. Length Device used to increase pressure by slowing down the liquid Ans. Diffuser Substance with melting point of 28 degrees and liquid at warm temperature. Ans. Cesium
7 of 9
220.
221.
222. 223. 224. 225. 226. 227. 228. 229. 230. 231.
Common alloy of 80% nickel and 20% chromium, has high electrical resistance Ans. Nichrome Copper nickel alloy usually consisting of 60% copper and 40% nickel. Commonly known as thermocouple. Ans. INVAR Retentivity a.k.a Ans. Remanence Coefficient of inelastic restitution Ans. 0 Coefficient of elastic restitution Ans. 1 Absolute zero rankine Ans. -460 Gas molecules Ans. Atomization Device to measure radioactivity Ans. Geiger counter Pendulum Ans. 2 sec period Eliminate odor Ans. Aeration Airplane resistance Ans. Drag Isobaric Ans. Constant pressure
GEAS Coaching #1 DLSU-‐M Compilation ©
232. 233. 234. 235. 236. 237. 238. 239. 240.
241.
242.
243. 244.
Harm produced by industrial plants Ans. Acid rain Unit of radiation Ans. Curie The start and end are the same Ans. Cycle Undergoes series of changes Ans. Process Latent heat of vaporization Ans. 2260 kJ/kg Latent heat of fusion Ans. 333 kJ/kg RA 9292 Rule 1 Ans. Statement of Policies RA 9292 Rule 2 Ans. Composition of Board RA 9292 Rule 3 Ans. License, Examination and Registration Years of residency to become a board member Ans. 5 Years Years of practice to become board member Ans. 10 Years More experiments Ans. Scientific Theory Device that splits up atoms Ans. Nuclear Reactor
245.
246. 247. 248.
249. 250. 251.
252.
253.
254.
Average ratio of stress to strain of material Ans. Secant Modulus First use of mass spectograph Ans. Francis Aston Royal Water Ans. Aqua Regia 95% Aluminum, 4% Copper, and the rest Magnesium Ans. Duraluminum Density of Luminous Flux Ans. Illumination Volume of 1 kg of pure water at 4°C Ans. Liter Use to determine the mass of atomic particles Ans. Mass Spectograph The ___ of a pivotal object is that point at which it can be struck without producing a reaction force on its pivot Ans. Center of Oscillation When the sum of external torques acting on a system is zero, the total angular momentum of the system remains constant. Ans. Conservation of Angular Momentum 0.25 % – 0.5 % Carbon Ans. Mild Steel 8 of 9
255. 256. 257. 258. 259. 260. 261.
262.
263.
264.
265.
More than 0.3 % Carbon Ans. Hard Steel Lead plus Tin Ans. Solder 88% Copper plus 12% Tin Ans. Bronze 67% Copper plus 23% Zinc Ans. Brass 1/amu Ans. Avogadro’s Number Molecular Weight / Liter Ans. Formality Property of a material which is a time dependent permanent strain under stress Ans. Creep Magnitude of force is directly proportional to ____ and inversely proportional to ____ Ans. Speed, Radius of path Forms 8 pairs of electrons when bonded Ans. Vander Waals Bonding A symbolic representation to emphasize the valence shell of an atom Ans. Electron Dot Diagram Device used to measure gas pressure Ans. Manometer
GEAS Coaching #1 DLSU-‐M Compilation ©
266.
267.
268.
269.
270. 271.
272.
273.
274. 275.
The ratio of amount of moisture in the air to the amount of air could contain at a given temperature Ans. Relative Humidity Mass of water vapor per unit volume of air Ans. Absolute Humidity An instrument used to compare the luminous intensity of two light sources Ans. Photometer Branch of physics dealing with the behavior of matter at temperatures approaching absolute zero Ans. Cryogenics Particle Accelerator Ans. Cyclotron CGS electrostatic unit of electromotive force Ans. Statvolt Cohesive attraction that causes the liquid to minimize its surface area Ans. Surface Tension Mass stress before permanent deformation Ans. Elastic Limit Also known as modulus of rigidity Ans. Shear Modulus Where free electrons move Ans. Conduction Band
276.
277.
278.
279. 280. 281.
282. 283.
According to the modern view of atomic model Ans. Electron Cloud Device that transfers heat between fluids without mixing the two Ans. Heat Exchanger Energy required to change solid to liquid or vice versa Ans. Heat of fusion Quantity of matter in space for study Ans. System Mass or region outside the system Ans. Surroundings The flow of matter and energy across the boundary Ans. Open System No flow of matter across the boundary Ans. Closed System Quick assets over liabilities Ans. Acid Test Ration
9 of 9
Related Documents
Geas Coaching 1.pdf
January 2021 1
Geas Excel Coaching Booklet 2
January 2021 3
Geas
January 2021 3
Geas
January 2021 3
Geas
January 2021 3
Geas
January 2021 3More Documents from "Peejay Ollabrac"
Geas Coaching 1.pdf
January 2021 1
Beneficios De La Conducta Asertiva En El Vinculo Docente
January 2021 1
Edoc.site_advac-1-corporate-liquidationdoc.pdf
January 2021 2
The Ultimate Ux Design Guide
March 2021 0
Lac Action Plan Jan March
January 2021 1