Amplify - Magnetic Fields - Final Test

Front

What happens to the kinetic energy of an object when its speed increases?

Back

The kinetic energy increases as its speed increases.

Front

What type of poles attract each other in a magnetic field?

Back

Opposite poles (e.g., north and south) attract each other.

Front

What will happen when two magnets with opposite poles are brought together?

Back

The magnets will attract.

Front

What type of poles repel each other in a magnetic field?

Back

Like poles (e.g., north and north or south and south) repel each other.

Front

What is one way to change the strength of an electromagnet?

Back

Change the amount of electric current flowing through the electromagnet.

Front

What is NOT a way to change the strength of the magnetic force of an electromagnet?

Back

Change the north pole and south pole of the electromagnet.

Front

What is the definition of kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

What is a magnetic field?

Back

A magnetic field is the region around a magnet where magnetic forces can be detected.

Front

What are magnetic field lines?

Back

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

Front

What happens to the magnetic force when the distance between two magnets increases?

Back

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