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Energy Transfers In Everyday Appliances (GCSE Physics)

The following is a GCSE Physics test covering 'Energy Transfers In Everyday Appliances' from the broader topic Electricity. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

What is the equation that links power (P), potential difference (V) and current (I)?
A hairdryer converts electrical energy to thermal and kinetic energy. Which of these is the wasted energy in normal use?
What is the best description of what a watt (W) measures?
Why does putting insulation around a hot water cylinder reduce energy wasted?
Which of the following correctly gives the unit of electrical charge?
If a device has power rating P and is used for time t each day, which quantity affects the daily energy cost from the meter?
A household mains supply in the UK provides alternating electricity at which potential difference?
A microwave oven operates at 1000 W for 2 minutes. How much energy (in kJ) does it supply?
An energy-efficient appliance has a higher or lower useful energy output fraction compared with a less efficient one?
Which equation expresses power loss in a transmission cable due to its resistance (R) and current (I)?
An appliance is rated 800 W. Which of these is the best way to reduce the electrical energy it uses?