GCSE Physics – Energy – elastic potential
Learning Objectives
-I can describe how elastic potential energy changes
-I can recall the units needed for F = kx
-I can rearrange F = kx
-I can use F = kx
-I can recall the units needed for E = ½ kx^2
-I can rearrange E = ½ kx^2
-I can use E = ½ kx^2
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Question 1 of 30
1. Question
What is true for springs?
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Question 2 of 30
2. Question
What is the Hooke’s law equation?
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Question 3 of 30
3. Question
What does F stand for in the Hooke’s law equation?
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Question 4 of 30
4. Question
What does k stand for in the Hooke’s law equation?
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Question 5 of 30
5. Question
What does x stand for in the Hooke’s law equation?
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Question 6 of 30
6. Question
What is force measured in?
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Question 7 of 30
7. Question
What is elastic potential energy (EPE)?
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Question 8 of 30
8. Question
How is elastic potential energy calculated?
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Question 9 of 30
9. Question
What is the spring constant?
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Question 10 of 30
10. Question
What is elastic potential energy measured in?
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Question 11 of 30
11. Question
What is extension measured in?
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Question 12 of 30
12. Question
What is the spring constant measured in?
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Question 13 of 30
13. Question
When is the formula for elastic potential energy correct?
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Question 14 of 30
14. Question
What is the limit of proportionality?
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Question 15 of 30
15. Question
How can we change the elastic potential energy of an object?
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Question 16 of 30
16. Question
How else can we change the elastic potential energy of an object?
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Question 17 of 30
17. Question
If extension doubles, what happens to elastic potential energy?
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Question 18 of 30
18. Question
Convert 10 mN/cm into N/m.
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Question 19 of 30
19. Question
Convert 0.001 GN/m into N/cm.
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Question 20 of 30
20. Question
If two springs with the same spring constant 150 N/m have 150 J and 600 J of energy each,
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Question 21 of 30
21. Question
What is the elastic potential energy if extension is 20 cm and k is 4 N/m?
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Question 22 of 30
22. Question
What is the elastic potential energy if extension is 50 cm and k is 25 N/m?
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Question 23 of 30
23. Question
What is the elastic potential energy if k is 50 N/m and extension is 1.2 m?
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Question 24 of 30
24. Question
A spring of constant 6 N/m is extended 30 cm. What is the elastic potential energy?
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Question 25 of 30
25. Question
What extension of a spring with constant 8 N/m would result in 144 J of elastic potential energy being stored?
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Question 26 of 30
26. Question
What extension of a spring with constant 120 N/m would result in 300 J of elastic potential energy being stored?
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Question 27 of 30
27. Question
A spring is stretched so that 12 J of elastic potential energy is stored. It has spring constant 3000 N/m, so what is the extension?
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Question 28 of 30
28. Question
A spring is stretched so that 300 J of elastic potential energy is stored. If the constant is 30 N/m, what is the extension?
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Question 29 of 30
29. Question
If elastic potential energy is 200 J, and extension is 20 cm, what is the spring constant?
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Question 30 of 30
30. Question
If a spring is extended 50 cm and there is 500 J of elastic potential energy, what is the constant k?
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