7th Grade Physical Science MCAS Review

Electrons have a: (7.MS-PS2-3)

• Negative charge

• Neutral charge

• Positive charge

Which material can be used as a conductor of electricity? (7.MS-PS2-3)

• Foil

• Rubber

• Plastic

• Ceramic

A positive charge and a positive charge will _______. (7.MS-PS2-3)

• Attract

• Repel

Tags

NGSS.MS-PS2-3

A _____________ makes it easy for electricity to flow through it. (7.MS-PS2-3)

• Conductor

• Insulator

This is a picture of a simple electromagnet. How can the electromagnet be made stronger? (7.MS-PS2-3)

• Add more coils of wire to the nail.

• Use a smaller battery.

• Reverse the poles of the magnet.

• Remove all the coils and the nail.

Tags

NGSS.MS-PS2-3

An electric field gets weaker the ____ it is to the charge. (7.MS-PS2-3)

• farther away

• closer

Tags

NGSS.MS-PS2-3

Two like charges: (7.MS-PS2-3)

• neutralize each other.

• repel each other.

• must be neutrons.

• attract each other.

Tags

NGSS.MS-PS2-3

Surrounding every magnet is a __________ __________. (7.MS-PS2-5.)

• magnetic field

• electrical current

• another magnet

• an enemy

Tags

NGSS.MS-PS2-5

What is most likely to happen when the switch is closed? (7.MS-PS2-5.)

• A magnetic field should be produced

• The nail will rust

• The battery will explode

• The wire will catch on fire

Tags

NGSS.MS-PS2-5

What is a complete path through which electric charges can flow called? (7.MS-PS2-5.)

• magnetic pole

• electric circuit

• electric resistance

• magnetic field