Magnetism

Front

What does the Earth's magnetic shield protect life from?

Back

Harmful space radiation.

Front

What type of energy do electric motors convert into kinetic energy?

Back

Electric energy.

Front

What happens when a magnet is moved next to a wire?

Back

An electric current is generated.

Front

What causes electrons to act like microscopic magnets?

Back

Their movement creates an electric current.

Front

Where can the kinetic energy for electric generators come from?

Back

Heat from burning fossil fuels, wind, moving water, or all of these.

Front

What is magnetism?

Back

A force that can attract or repel certain materials, primarily metals like iron.

Front

What is a magnet?

Back

An object that produces a magnetic field and can attract ferromagnetic materials.

Front

What are the two poles of a magnet called?

Back

North pole and South pole.

Front

What happens when like poles of magnets are brought together?

Back

They repel each other.

Front

What happens when opposite poles of magnets are brought together?

Back

They attract each other.