1. . Work is dot product of force and:
(A) Acceleration
(B) Distance
(C) Displacement
(D) Velocity
2. . Unit of work is:
(A) Watt
(B) Horse power
(C) Newton
(D) Joule
3. . Potential energy is given by:
(A) mgv
(B) mgh
(C) ½mv²
(D) F·d
4. . Kinetic energy is given by:
(A) r × F
(B) ½mv²
(C) w/t
(D) mgh
5. . The rate of doing work is called:
(A) Watt
(B) Energy
(C) Power
(D) Momentum
6. . The ability to do work is called:
(A) Watt
(B) Energy
(C) Power
(D) Momentum
7. . Unit of power is:
(A) Watt
(B) Newton
(C) Joule
(D) Erg
8. . 1 hp is equal to:
(A) 746 Watt
(B) 550 Watt
(C) 467 Watt
(D) 674 Watt
9. . Joule = ________ erg.
(A) 10⁹
(B) 10⁵
(C) 10⁷
(D) 10¹⁰
10. . Potential energy = mass × ________ × height.
(A) Displacement
(B) Velocity
(C) Density
(D) Gravitational acceleration