Week 20 Practice: Electromagnetism (Y)

Front

What happens when two magnets with the same pole are placed near each other?

Back

They will repel each other.

Front

What is the force that pulls objects toward the center of the Earth?

Back

Gravity.

Front

What type of energy is stored in a magnetic field when moving a magnet against a magnetic force?

Back

Potential energy.

Front

What will happen to two magnetic toy trains placed close to each other?

Back

They will move away from each other because the magnetic force will push them apart.

Front

If you move a magnetic cart one space to the right towards a blue magnet, what happens to its potential energy?

Back

It increases.

Front

What is the term for the force that opposes the motion of two surfaces in contact?

Back

Friction.

Front

What is the difference between kinetic energy and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on position.

Front

What is an example of a magnetic force in everyday life?

Back

Refrigerator magnets sticking to the fridge.

Front

What happens when you bring two opposite poles of magnets together?

Back

They will attract each other.

Front

What is the role of magnetic fields in electromagnetism?

Back

Magnetic fields are created by moving electric charges and can exert forces on other charges.