Unit 5 - Mrs. Gilmer

ALL metals are pulled by magnets.

• True

• False

Answer explanation

This is FALSE, only Ferromagnetic metals are magnetic (such as Iron, Nickle, and cobalt)

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Opposites ________, like sides _______.

• Repel, Attract

• Attract, Repel

• Attract, do nothing

• Do nothing, Repel

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

When both magnets are pushing, the two are ____.

• opposite

• attracted

• no longer magnets

• repelled

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

When both magnets are both pulling, the two are ____.

• opposite

• attracted

• no longer magnets

• repelled

Answer explanation

ATTRACTED!! They move towards each other.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

In a system with two magnets, how can we get them to switch the type of force they are producing (attractive vs. repulsive)?

• By flipping both sides of the magnets

• By flipping only one of the magnets

• By adding a third magnet

• None of the above

When the connected coil or magnet move, they have ____ energy.

• kinetic
• potential

• no energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

When a coil of wire is connected to a sound source, the speaker cone vibrates to produce sound, but only when a _____ is brought very near to the copper wire.

• coil of wire

• battery

• paperclip

• magnet

Tags

NGSS.MS-PS2-5

A permanent magnet can NOT be turned on and off.

• True

• False

What type of magnet can be turned on and off?

• Permanent magnet

• Temporary magnet

• all magnets

• no type of magnet can be turned on an off

An electromagnet is a _____ magnet. (battery involved)

• Permanent

• Temporary

• Strong

• Weak

Answer explanation

BECAUSE it produces a magnetic field only when the current flows in its coil. The magnetic field vanishes when the current is switched off.

Tags

NGSS.MS-PS2-3