Magnets and electromagnets

Front

What is a magnet?

Back

A magnet is an object that produces a magnetic field, which can attract or repel certain materials, typically metals like iron.

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

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state, which can be converted into kinetic energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, which depends on its mass and speed.

Front

How does distance affect magnetic force?

Back

The magnetic force between two magnets decreases as the distance between them increases.

Front

What happens to kinetic energy when an object speeds up?

Back

The kinetic energy of an object increases as its speed increases.

Front

What is the relationship between potential energy and kinetic energy in a magnetic field?

Back

A magnetic force can convert potential energy stored in a magnetic field into kinetic energy.

Front

What is the formula for kinetic energy?

Back

Kinetic energy (KE) = 1/2 mv², where m is mass and v is velocity.

Front

What is the formula for potential energy?

Back

Potential energy (PE) = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is magnetic field strength?

Back

Magnetic field strength is a measure of the intensity of the magnetic field, often represented by the symbol B.