Electric and Magnetic Forces

Front

What are materials that allow electric charges to move freely through them called?

Back

Conductors

Front

How should magnets be positioned to attract each other?

Back

With the opposite poles near each other (north close to south).

Front

What can be done to make an electromagnet stronger?

Back

Increase the number of loops of wire.

Front

What is the region around a magnet where the magnetic force is exerted called?

Back

Magnetic field.

Front

What is an example of an insulator?

Back

Rubber.

Front

What are materials that do not allow electric charges to move freely called?

Back

Insulators.

Front

What is the force that attracts or repels magnetic materials?

Back

Magnetic force.

Front

What is the name of the device that converts electrical energy into mechanical energy?

Back

Electric motor.

Front

What happens to the magnetic field when the current in a wire is increased?

Back

The magnetic field becomes stronger.

Front

What is the term for the area around a charged object where its electric force can be felt?

Back

Electric field.