GCSE Physics – Wasted energy
Learning Objectives
-I can recall that energy cannot be created or destroyed
-I can describe what happens to wasted energy
-I can recall ways to reduce wasted energy
-I can describe how insulation can reduce energy loss
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Question 1 of 25
1. Question
What is wasted energy?
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Question 2 of 25
2. Question
Energy can be
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Question 3 of 25
3. Question
Energy can be
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Question 4 of 25
4. Question
Energy cannot be
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Question 5 of 25
5. Question
Energy cannot be
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Question 6 of 25
6. Question
What does a closed system mean?
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Question 7 of 25
7. Question
When there are energy transfers in a closed system,
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Question 8 of 25
8. Question
What does dissipate mean?
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Question 9 of 25
9. Question
How do we describe energy that is dissipated to waste forms?
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Question 10 of 25
10. Question
What energy is a wasted form in a light?
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Question 11 of 25
11. Question
What energy is wasted in a kettle?
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Question 12 of 25
12. Question
What energy is wasted when a person runs uphill?
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Question 13 of 25
13. Question
What energy is a wasted form in a car’s brakes?
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Question 14 of 25
14. Question
What energy is a wasted form in all electrical appliances?
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Question 15 of 25
15. Question
What is thermal conductivity?
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Question 16 of 25
16. Question
What does a higher thermal conductivity mean?
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Question 17 of 25
17. Question
How can we reduce unwanted energy transfers?
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Question 18 of 25
18. Question
How else can be reduce unwanted energy transfers?
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Question 19 of 25
19. Question
How does lubrication work?
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Question 20 of 25
20. Question
How does insulation reduce unwanted energy transfers?
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Question 21 of 25
21. Question
How can insulation be improved?
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Question 22 of 25
22. Question
What is an example of insulation?
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Question 23 of 25
23. Question
How does double glazing work?
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Question 24 of 25
24. Question
How do cavity walls work?
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Question 25 of 25
25. Question
How do hot water tank jackets work?
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