Magnetic and Electric Forces Quiz

What happens when two North Poles of magnets are placed near each other?

• They attract each other

• They repel each other

• They do not affect each other

• They create a stronger magnet

Which materials are commonly affected by magnetic forces?

• Aluminum and gold

• Iron and nickel

• Plastic and glass

• Copper and silver

What part of a magnet is where the magnetic force is strongest?

• At the center

• At the poles

• Everywhere equally

• On the sides

Which statement is true about electric charges?

• Like charges attract

• Opposite charges repel

• Like charges repel

• All charges attract

What occurs when you rub a balloon against your hair?

• The balloon loses all its charges

• Electrons transfer between the balloon and your hair

• The balloon becomes magnetic

• The balloon attracts metal objects

What is created when iron filings are placed near a magnet?

• A new magnet

• An electric current

• A pattern of magnetic field lines

• A static charge

How does the Earth's magnetic field protect us?

• It helps us find direction using a compass

• It keeps the planet warm

• It blocks harmful solar radiation

• It keeps the oceans from freezing

Which of the following is NOT an example of a magnetic force?

• A refrigerator door closing

• A compass needle moving

• A balloon sticking to a wall

• Headphones working

What causes lightning during a storm?

• The wind moving clouds

• The build-up of electric charges in the clouds

• The movement of the Earth's magnetic field

• The heat from the sun

What do magnetic field lines show?

• The strength of the magnet

• The path of magnetic forces

• The location of charges

• The direction of electric currents