1.6 Energy Dissipation (Year 10 Physics)

The following test is covering '1.6 Energy Dissipation' for Year 10 Physics.

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Question 1

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How does friction affect the energy transfer of a bicycle brake system?

What describes energy dissipated by friction in a drill bit?

Why would reducing friction be beneficial for moving mechanisms?

Useful energy is energy transferred:

Which example would have higher energy dissipation rates?

What factor contributes most to energy dissipation occurring in gear systems?

Why might friction be deliberately increased in certain devices?