magnetism and matter

A magnetic field is a field of force that is produced by moving ________ charges.

• northern

• positive

• gravitational

• electric

Magnetism is a force of ____________________________ that occurs between two _____________ objects.

• attraction or repulsion, magnetic

• external or internal, magnetic

• external or repulsion, electronic

• attraction or internal, electronic

The magnetic ____________ around a bar magnet is shown above.

• legs

• flowers

• field

• direction

A compass points toward the south pole of Earth's magnetic field, located near the Earth's geographical ________.

• north

• south

• east

• west

Every magnet has both a _________ pole and a __________ pole.

• North, South

• East, West

• Positive, Negative

• Positive, South

The image above shows how iron filings respond to magnetic fields generated by two magnets with ____________ poles facing each other.

• opposite

• like

• positive

• negative

The image above shows how iron filings respond to magnetic fields generated by two magnets with ____________ poles facing each other.

• like

• opposite

• positive

• negative

As the distance between two magnets increases (they get farther apart), the force between them:

• Increases
• Decreases
• Stays the Same

If you cut a magnet in half, what happens to the poles?

• One half gets the North Pole, the other half gets the South Pole
• Both halves get only a North Pole
• Both halves get only a South Pole
• Both halves get a North pole and a South Pole

Which direction is the North Pole of this electromagnet?

• Right
• Left
• Up
• Down