What is the name for the transfer of energy by vibrations?

The process of warm air rising cooling and sinking is known as what?

What is power measured in?

Through what process does heat energy from the sun reach Earth?

How much energy is needed to heat up 2kg of water by 10 degrees. (c=4000)

A 1500W hairdryer is on for 30 mins. How much energy is transferred in kWhs?

Cavity wall insulation costs £3000 and saves £120 a year. What is the payback time?

What does a step up transformer do?

Which of these applies to silver materials?

A good reason for putting pylons overground is...

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