1.6 Energy Dissipation (GCSE Physics)

The following is a GCSE Physics test covering '1.6 Energy Dissipation'

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Question 1

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What valuable form of energy is transferred to thermal energy by friction?

What is meant by `useful energy`?

What eventually happens to all the wasted energy from a system?

What happens to some useful energy in a machine due to friction?

Which example would have higher energy dissipation rates?

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

Why do brakes on cycles become hot during long braking?

Which of these is a correct example of energy dissipation?

What happens to energy that is not usefully transferred?

Why might friction be deliberately increased in certain devices?

How can energy dissipation be minimized?

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