Which of these is a good insulator?

• tap water

• steel

• plastic

• gold

Which of these is a good conductor?

• plastic

• wood

• glass

• copper

What is the term for a complete path electricity can flow through?

• volt

• circuit

• current

• watt

What is electricity?

• flow of water

• flow of air

• flow of atoms

• flow of electrons

Which of these is a unit of electrical energy?

• volt

• kilogram

• tonne

• metre

In what units is force measured in?

• kilograms

• watts

• newtons

• kilometres per second

1 newton is approximately equal to:

• 10 grams

• 100 grams

• 1 kilogram

• 1 tonne

This ball has:

• electrical energy

• heat energy

• kinetic energy

• nuclear energy

The stationary car on the hill has:

• gravitational potential energy

• maximum kinetic energy

• elastic potential energy

• sound energy

In this clip gravitational potential can be seen ____________ into kinetic energy.

• transferring

• transforming