1.9 Energy And Power (GCSE Physics)

The following is a GCSE Physics test covering '1.9 Energy And Power'

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Question 1

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What does wasted power mean?

What is the SI Unit used for power?

How do you calculate efficiency using power?

What describes muscle power in lifting weights?

Which power rating is suitable for a railway engine?

What is the definition of power in physics?

A 100 W bulb transfers 2000 J of energy. How much time is needed?

Order of magnitude calculations give a value rounded to:

Which appliance typically uses the highest power?

What type of device typically converts energy transfer faster?

A microwave transfers 120,000 joules in 60 seconds. What is its power rating?

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