GCSE Physics – Gravitational potential energy

Last updated: 18/06/2020
Edexcel GCSE Science – Combined science foundation Conservation of energy GCSE Physics – Gravitational potential energy

Learning Objectives

-I can use describe how gravitational potential energy changes
-I can recall the units needed for Ep_p = mgh
-I can rearrange Ep_p = mgh
-I can use Ep_p = mgh

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  1. Current
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  3. Answered

  1. What is gravitational potential energy (GPE)?

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  2. What is gravitational field strength?

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  3. What is the formula for gravitational potential energy?

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  4. What is gravitational potential energy measured in?

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  5. What is gravitational field strength measured in?

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  6. What is the value of gravitational field strength on Earth?

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  7. What unit must height be in?

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  8. What unit must mass be in?

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  9. What does gravitational potential energy depend on?

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  10. How can we change gravitational potential energy?

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  11. How else can we change gravitational potential energy?

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  12. When an object falls, what energy form is gravitational potential energy converted to?

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  13. When an object hits the ground, what energy forms are converted to?

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  14. What is the gravitational potential energy of a 4 kg object that is 2 m high?

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  15. What is the gravitational potential energy of a 70 kg person that is 10 m high?

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  16. What is the gravitational potential energy of a 1000 kg car that is 3 m high?

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  17. What is the gravitational potential energy of a 20 g pencil that is 1 m high?

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  18. What is the mass of an object that is 2 m high and has 100 J of gravitational potential energy?

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  19. What is the mass of an object that is 4 m high and has 200 J of gravitational potential energy?

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  20. If an object is 50 m high and has 1000 J of gravitational potential energy, what is its mass?

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  21. A 2 kg chair has 4000 J of gravitational potential energy. How high is it?

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  22. A 70 kg person has 4900 J of gravitational potential energy. How high are they?

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  23. A 20 g object has 2 J of gravitational potential energy. How high is it?

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  24. A 2 kg mass falls 6 m. What is the change in gravitational potential energy?

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  25. A 70 kg person falls 2 m. What is the change in gravitational potential energy?

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