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A Level Physics Practice Test: Work, Energy and Power
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Avg score: 22% • Most missed: “Average power of all activities of our body is”
Work is the amount of energy transferred when an object moves a distance due to an external force. Energy is the capacity to do work or perform some action. Power is the rate at which energy is transferred or transformed with respect to time.  The equation for work is: W = F. d.  The equation for power is: P = W/t.  The SI unit of work is Joule (J). The SI unit of power is Watt (W).  Energy can exist in many forms, but all energy is classified as either kinetic or potential energy. Kinetic energy is the energy associated with motion. Potential Energy is energy due to an object's... Show more
A Level Physics Practice Test: Work, Energy and Power
Time left 00:00
15 Questions

1. SI units for energy and work are
2. If the ball is thrown upwards, the energy changings are
3. Change in G.P.E can be written as
4. As the object gains speed, it's G.P.E (Gravitational Potential Energy)
5. 1 W is equal to
6. Efficiency of car engine is only about
7. Average power of all activities of our body is
8. A weight-lifter raises weights with a mass of 200 kg from the ground to a height of 1.5 m, the increase in their G.P.E is
9. Work done by force of gravity on a satellite of 500 N at height is
10. If force of 1 N moves an object through 1 m, then work done is
11. Energy transferred to stone of weight 10 N falling from top of 250 m high cliff is
12. Rate of doing work is called
13. If energy loss is zero then decrease in G.P.E is equal to
14. Energy object possesses due to it's position is called
15. Work is defined as

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