What will happen when these magnets are brought close together?

Both magnets will turn to the left

Both magnets will turn to the right

You know this substance is magnetized because

all the domains have right angles

In this image, matching north poles from two magnets are introduced. What do you predict will be the outcome?

The two north poles will repel each other

There will be no interaction. The poles of magnets do not have an effect on one another.

The two north poles will attract each other

The two magnets will combine and become one magnet

How do can you demagnetize a magnet?

place them in different temperatures: heat them up

A magnetic field is...

the magnetized region of space around a magnet.

the ability to draw closer to an object.

a device with a magnetized needle.

when a magnet always maintains its magnetic properties.

a permanent magnet is

a magnet that always maintains its magnetic properties.

a device with a magnetized needle for finding directions.

a magnet that has magnetic properties for a limited time.

a piece of metal that attracts metal

a temporary magnet is

a device that has a core that is temporarily magnetized by the flow of electric current through a coil that surrounds it.

a device that has magnetic properties for a limited time.

a device with a magnetized outer core.

a device that always maintains its magnetic properties.

the ability to push or pull objects made of iron, cobolt or nickel.

the ability to attract iron or steel objects.

a piece of metal that attracts other metal

Which is an example of how magnets can help at home?

lifting then dropping metal washers.

a crane lifting a car to be crushed.

separating aluminum cans from glass

What must happen for an electromagnet to have a magnetic field?

It must be connected to electricity.

It must line up with the Earth's magnetic field

What characteristics do magnetic substances have?

they can push or pull objects they are not touching

they are always black and cold to touch

The fall faster than other objects when dropped

they can give a shock when they are touched.

The fact that a compass needle always points north tells us what?

earth is surrounded by a magnetic field

the solar rays affect magnetism.

there is static electricity in the air.

How would you explain to your friend how Earth's magnetic field is similar to a bar magnets? magnetic field?

A bar magnet is magnetic at the poles like the Earth.

a bar magnet and the Earth are both round

a bar magnet is magnetic in the middle like the Earth

A bar magnet and the Earth are both cylindrical

What is our best evidence that Earth has a magnetic field?

A compass needle lines up with it

All things fall toward the center

The wind blows from east to west

Earth's oceans all have currents.

a train that is super fast and used magnets to make it move

a really powerful magnet that is used in medicine

a new type of flashlight that runs on magnets.

Magnets Force of Attraction

Authored by Charles Martinez

Science

8th Grade

30 Questions

NGSS covered

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

True or False: All metals stick to magnets.

True

False

Tags

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What particle causes magnetism in an atom?

protons

neutrons

electrons

nucleus

Tags

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which poles are attracted?

north and north

south and south

north and south

Tags

NGSS.3-PS2-3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which poles repel?

north and south

south and north

south and south

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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

take away a d-cell battery

wrap the wire loosely around the core

use more coils of wire around the core

use less winds around the core

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which metals are attracted to magnets?

iron, nickel, cobalt

gold, silver, platinum

copper, magnesium, aluminum

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which is not a property of a magnet?

all magnets have two poles

all magnets have a force of attraction or repulsion

all magnets are surrounded by a magnetic field

all magnets can be turned off

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Magnets Force of Attraction

True or False: All metals stick to magnets.

What particle causes magnetism in an atom?

Which poles are attracted?

Which poles repel?

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

Which metals are attracted to magnets?

Which is not a property of a magnet?

What items will a magnet attract?

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

This substance is

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