Benchmark 3 Topic #4: Electromagnetism

Which of the following is not a subatomic particle that makes up an atom?

• neutron

• proton

• nucleon

• electron

Protons have a ____________ charge.

• negative

• neutral

• positive

Electrons have a ____________ charge.

• negative

• neutral

• positive

A current is produced when _______________ flow in a circuit.

• protons

• neutrons

• electrons

• nucleons

What happens when an electric current flows through a wire?

• The wire begins to spin.

• Nothing happens.

• A field of gravity is created around the wire.

• A magnetic field is created around the wire.

The south ends of two magnets will _________ each other.

• repel

• attract

________________ are the attractive and repulsive forces between two poles.

• Magnetic forces

• Electric forces

• Magnetic charges

• Electric charges

What does this image show?

• Parallel circuit

• Series circuit

• Magnet

• Electromagnet

Opposite charges do what?

• Attract

• Repel

The area of magnetic force around a magnet is known as its ____________.

• magnetism

• magnetic current

• magnetic field

• electric current