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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…

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13. 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…

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