Energy review

Energy can be stored in different ways. A moving object has energy in its __________ energy store.

• electrostatic

• kinetic

• gravitational potential

• magnetic

• elastic potential

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

• electrostatic

• kinetic

• gravitational potential

• Thermal

• elastic potential

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

• electrostatic

• kinetic

• gravitational potential

• Thermal

• elastic potential

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

• chemical

• kinetic

• gravitational potential

• Thermal

• elastic potential

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?

• kinetic

• electrical

• elastic

• gravitational

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?

• magnetic

• chemical

• kinetic

• elastic

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?

• chemical

• magnetic

• nuclear

• electrical

• elastic

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?

• 60

• 40

• 140

• 160

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?

• 120

• 80

• 20

• 100

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.

• Faster

• Slower