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Chapter # 04 & 05

Physics Class X

1. The angle between rectangular components is: a) 0˚ b) 30˚ c) 60˚ d) 90˚ 2. Vectors can be added by a) Head to Tail Rule b) Triangle Law c) Parallelogram Law d) All of Them 3. Which of the following is not a scalar? a) Density b) Distance c) Volume d) Velocity 4. A vector has a) Magnitude b) Direction c) Unit d) All of Them 5. A …… will be denoted by English Alphabet letter with a small arrow over it. a) Scalar b) Vector c) Derived Quantity d) Fundamental 6. The length of arrow shows the ……. of vector. a) Direction b) Unit c) Magnitude d) All of Them 7. When a vector is multiplied by a number it remains a ……. quantity. a) Scalar b) Vector c) Basic d) New 8. If a positive number k is multiplied with a vector then new vector has a) k times magnitude b) same direction c) Both a and b d) N. O. T 9. If the – 1/k is multiplied with a vector then the new vector has a) 1/k times magnitude b) opposite direction c) k times magnitude d) Both a) & b) 10. A negative vector of a given vector can be obtained by a) Reverse the direction with same magnitude b) multiplying with -1 c) Both (a) & (b) d) N.O.T 11. ……= Opposite side /Hypotenuse Engr: Kashif Ali Magsi

Superb Academy Superb in Education

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Chapter # 04 & 05

Physics Class X

a) Sinɵ b) Cosɵ c) Tanɵ d) Cotɵ 12. At what angle the horizontal component will be equal to vertical components of a vector? a) 0˚ b) 45˚ c) 60˚ d) 30˚ 13. Cos 60=…… a) 0.707 b) 0.866 c) 1 (d) 0.5 14. Tanɵ =……… a) Sinɵ/Cosɵ b) Opposite Side/Adjacent Side c) Both a and b d) N.O.T 15. The process of dividing a vector into its components is called …. a) Resolution of a vector b) Composition of A vector c) Addition of a d) N.O.T ⃗ A 16. A Vector has rectangular components Ax and Ay the Ax=…..and Ay=….. a) A sinɵ , A tanɵ b) A cosɵ , A tanɵ c) A Sinɵ , A cosɵ d) A cosɵ , A sinɵ 17. If magnitude of a force is 10N and makes an angle of 60 with x- axis the Fx and Fy will be. a) 8.66N, 5N b) 5N, 8.66N c) 5√3N, 5N d) 10N, 5N 18. If Fx= 3N and Fy= 3N then find F and Angle with x-axis. a) 3√2, 45˚ b) 2√3, 45˚ c) 3, 30˚ d) All of Them 19. A body moves 3 m towards east from a fixed point A and reached a point B. From B it covers 4m towards north and arrives at a point C. then what will be its total displacement. a) 7 m b) 1m c) 9m d) 5m Engr: Kashif Ali Magsi

Superb Academy Superb in Education

Test

Chapter # 04 & 05

Physics Class X

20. A rectangular metal block of mass 10 kg rests on the top of a metal surface. The coefficient of friction between the box and the metal is 0.2. What force parallel to the surface is needed to move the block? (Take g=10 m/s2) a) 20N b) 12N c) 8N d) 15N

Engr: Kashif Ali Magsi