Magnetic Fields Review

Front

What is a magnetic field?

Back

A magnetic field is an invisible field around a magnet where magnetic forces can be felt.

Front

What are magnetic field lines?

Back

Magnetic field lines are imaginary lines that represent the strength and direction of a magnetic field.

Front

What happens when like poles of magnets are brought together?

Back

Like poles of magnets repel each other.

Front

What happens when opposite poles of magnets are brought together?

Back

Opposite poles of magnets attract each other.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

Front

How can the strength of an electromagnet be increased?

Back

The strength of an electromagnet can be increased by increasing the electric current or adding more coils of wire.

Front

What is kinetic energy?

Back

Kinetic energy is the energy that an object has because it is moving.

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state.

Front

How does kinetic energy relate to speed?

Back

Kinetic energy increases as the speed of an object increases.

Front

What is the formula for kinetic energy?

Back

The formula for kinetic energy is KE = 1/2 mv², where m is mass and v is velocity.