Review Magnets, Types of Energy, Simple Machines, Work, Power,MA

What happens when two north poles of a magnet are placed together?

• they repel
• they attract
• they cancel each other out
• the strength of the magnet is doubled

Tags

NGSS.MS-PS2-3

A north pole and a south pole will attract.

• True
• False

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NGSS.MS-PS2-3

True or False: All metals stick to magnets.

• True
• False

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Magnetism is a type of ____________

• force
• book
• plant
• animal

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

When two magnets repel, they ________________

• change color
• pull together
• push apart
• get colder

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

The force of magnetism is stronger when magnets are ________________

• cold
• round
• closer together
• farther apart

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Once a paperclip touches a magnet and becomes a magnet itself, does a paperclip STAY that way? Or does it stop being a magnet?

• stay that way forever

• stop being a magnet

• stay that way for a short time

Which metals are attracted to magnets? 

• iron, nickel, cobalt
• gold, silver, platinum
• copper, magnesium, aluminum

Tags

NGSS.MS-PS2-3

Bob made an electromagnet but it was very weak.  How can he make it stronger?

• take away a d-cell
• wrap the wire loosely
• use thicker wire
• use less winds

Tags

NGSS.MS-ETS1-3

How is Earth's magnetic field similar to that of a magnet?

• It's shaped like a horseshoe.
• It has north and south poles.
• It is made plastic.
• It is hundreds of miles long.