A heater transfers 70 J in 1 s. What is its power rating?
What is the law of Conservation of Energy?
Energy is measured in Joules, but what is food measured in?
What number does the prefix 'kilo' represent?
What happens to the energy transferred if we increases the time a device is switched on for?
Which thermal energy store has changed the most in the following?
What happens to the chemical energy store within a fuel as it is used?