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Worksheets

Magnetism and Electormagnetism

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is a good way to describe a magnetic field

a)

ketchup with hot dogs

b)

force of gravity

c)

force at a distance

d)

force with no off switch

2.

Does a magnetic field exist around a magnet if there is no force?

a)

Yes

b)

No

3.

Why is the magnetic force stronger in some places?

a)

Because the lines between the N and S poles are smallest.

b)

Because there is a high frequency of magnetic waves caused by a stronger magnet.

c)

Because it is next to electricity

d)

Because its affected by the Earth's magnetic field

4.

How do we know that a magnet produces a force field constantly?

a)

Because if you leave it next to a cell phone, it will ruin it.

b)

Because when metals like iron are placed next to it, attracts right away.

c)

Because when you attach it to an ammeter it will show positive all the time.

d)

Magnets are fun toys for kids.

5.

Similar magnet poles ________

a)

attract

b)

fight

c)

repel

6.

Which has electrons set up in a way that always creates a magnetic force?

a)

Permanent Magnets

b)

Ferromagnets

c)

Ketchup

7.

Check all that are true about a temporary magnet.

a)

When the magnetic field disappears, they lose their magnetism.

b)

They produce a magnetic field when they're with a strong magnet.

c)

They're made from ferromagnetic materials.

d)

They cans stick to the firdge.

8.

Why does earth have a magnetic field?

a)

It is full of lodestone.

b)

It reflects the magnetism from the solar system.

c)

liquid rock rubs against the ferromagnetic core of the earth and produces and electromagnetic field.

d)

Kids are playing with magnets all over the earth.

9.

What is solar radiation?

a)

Heat from the sun.

b)

A skin disease from being in the sun too much.

c)

A magnetic force from the sun.

d)

Protons and electrons, produced by the sun and directed at planet earth.

10.

Why is earth's magnetic field so important? Select more than 1

a)

It protects us from solar radiation by creating a magnetic field.

b)

It helps birds know where to go in the winter.

c)

It sets the direction of a compass so that people don't get lost.

d)

It cause for paper clips in our house to fly around when we're not looking.