Electromagnetism

What happens to the strength of a magnetic field as you move away from the magnet?

• The strength of the magnetic field increases.

• The strength of the magnetic field doesn't change.

• The strength of the magnetic field is doubled.

• The strength of the magnetic field decreases.

Tags

NGSS.MS-PS2-3

Particles with opposite charges ____________ and particles with same (or like) charges ____________.

• attract, repel

• repel, repel

• attract, attract

• repel, attract

Tags

NGSS.MS-PS2-3

How do you make an electromagnet stronger?

• Add a motor and/or lightbulbs
• Add more light bulbs and/or wire coils
• add more wire coils and/or a switch
• add more wire coils and/or batteries

Tags

NGSS.MS-PS2-3

What does this image show?

• Parallel circuit

• Series circuit

• Magnet

• Electromagnet

Tags

NGSS.MS-PS2-3

A current is produced when _______________ flow in a circuit.

• protons

• neutrons

• electrons

• nucleons

Tags

NGSS.HS-PS2-5

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.

Tags

NGSS.3-PS2-3

NGSS.4-PS3-2

Electric current is measured in ____________.

• Newtons (N)

• Amperes (A)

• Hertz (Hz)

How do you increase the strength of an electromagnet?

• Add a motor and/or light bulbs

• Add more light bulbs and wire coils

• Add more wire coils

• Increase the voltage

Tags

NGSS.MS-PS2-3

How can a magnet be used to produce an electric current?

• Hold a magnet next to a piece of wire.

• Wrap wire around a magnet.

• Spin the magnet around inside a coil of wire.

Tags

NGSS.3-PS2-3

What three minerals are attracted to a magnet?

• Gold, copper, cobalt

• Cobalt, aluminum, silver

• Iron, copper, aluminum

• Iron, nickel, cobalt

Tags

NGSS.MS-PS2-3