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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How does energy dissipation affect the efficiency of systems?

Why would reducing friction be beneficial for moving mechanisms?

Through what process does friction waste energy?

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

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

As dissipated energy spreads out, what happens to its usefulness?

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

What is `wasted energy`?

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

What is meant by `useful energy`?

Why do brakes on cycles become hot during long braking?

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