Revision questions about energy

Work done,energy transfer and rollercoasters

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Revision Questions
1. What does the term work done mean?
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2. What is the equation for calculating work done?
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3. What is the work done when a 200kg piano is lifted up a second floor window,7.5 metres off
the ground?
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4. What does the term power mean?
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5. What is the equation for calculating power?
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6. If work done was 700J and time taken was 150 seconds what would power be?
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7. What is kinetic energy?
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8. What is the equation for calculating kinetic energy?
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9. If the mass was 0.75 kg and the kinetic energy was 50 J what is the velocity?
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10. What is potential energy?
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11. What is the equation for calculating gravtittatuion al potential energy?
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12. If the mass was 357 kg, and the potential eergy is 50J what is the height?
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What is electrical energy?
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14. What is the equation for calculating electrical energy?
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15. If the power is 75 W and the Elecrical energy is 190 W,what is the time?
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16. What is the force that acts inwards during a circular motion?
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17. What keeps Earth in orbit around the sun?
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18. What happens to an object when it is travelling at constant speed?
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19. What is a muon?
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20.…read more

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