Energy Transformations

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5 Terms

1
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Q6: What is an energy transformation?

A6: It’s the change of energy from one form to another.

2
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Q7: Describe the energy transformation in a torch.

A7: Chemical (battery) → Electrical → Light + Heat

3
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Q8: Describe the energy transformation in a TV.

A8: Electrical → Light + Sound + Heat

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Q9: What happens to energy in all transformations?

A9: Some energy is always transformed into heat, which may be wasted.

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Q10: What is an energy system with input and output?

A10: A system where energy enters (input), is transformed, and leaves as output (e.g. a microwave: electrical in → heat out).