Energy can be stored in different ways. The temperature of an object depends on the amount of energy it has in its __________ energy store.

Energy can be stored in different ways. A compressed or stretched object has energy in its __________ energy store.

Cells and batteries have most of their energy in their __________ energy store.

This energy transfer diagram shows how energy is transferred when an electric motor is powered by a battery, but there are some key words missing. How is the energy transferred?

This energy transfer diagram shows how energy is transferred when an electric motor is powered by a battery, but there are some key words missing. What is final energy store?

This energy transfer diagram shows how energy is transferred when an electric motor is powered by a battery, but there are some key words missing. What is the starting energy store?

A total of 100 J of energy is transferred electrically to a lamp. 40 J of this energy is usefully transferred to the surroundings as visible light. How many joules of energy are dissipated to the surroundings by infrared?

100 J of energy in total is transferred electrically to a lamp. 20 J of this energy is dissipated to the surroundings by infrared. How many joules of energy are transferred usefully to the surroundings by visible light?

Fossil fuels are being used at a much _________ rate than the rate they form at. As a result, it is predicted that they will run out.

Fossil fuels are ___________________ energy resources.

Which of these energy resources are renewable?

Select two disadvantages of using fossil fuels.

What are three disadvantages of using wind turbines to generate electricity?

A 1.7 kW microwave is used for 10 minutes. Electricity is charged at 16 p per kilowatt hour. How much does the microwave cost to use in pence?

A 0.5kW heater for 2 hours. Each kWh costs 11p

A 1.5kW heater for 3 hours. Each kWh costs 11p

A 3.5 kW heater for 12 hours. Each kWh costs 10p