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Science Year 3 Magnets
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Magnetic Forces

This worksheet tests your knowledge of magnetic forces.

Key stage:  KS 2

Curriculum topic:  Forces and Magnets

Curriculum subtopic:  Magnets Attract or Repel

Difficulty level:  

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QUESTION 1 of 10

Magnets are very useful and have many different functions. The Earth is a giant magnet, with North and South poles. This picture shows the magnetic fields around the Earth:

 

 

 

In this worksheet you will have to answer questions about magnetic forces.

Is this statement true or false?

When magnets attract, there are magnetic forces.

 

true

false

Is this statement true or false?

A magnet has only a north OR a south pole.

 

true

false

Is this statement true or false?

Magnets are used in loudspeakers to make sounds.

true

false

Complete this sentence by writing the missing word below.

The north pole of a magnet will attract the _________ pole of another magnet.

Complete this sentence by writing the missing word below.

Explorers use an instrument called a __________ to help them with direction.

Complete this sentence by writing the missing word below.

Substances that are attracted by magnets are known as _______________ substances. 

Complete this sentence.

A freely suspended bar magnet will...

 

come to rest in a north-south direction

keep rotating clockwise

sway from side to side

stay in position with no movement

Complete this sentence.

The pull of a magnet is strongest at...

the north pole

the south pole

both of the poles

the middle of the magnet

Is this statement true or false?

Magnets can attract all metallic substances.

true

false

Which statement about magnets is true?

 

magnets are always bar shaped

all magnets are equally strong

like poles repel

only magnets are attracted to other magnets

  • ANSWERS
  • Question 1

Is this statement true or false?

When magnets attract, there are magnetic forces.

 

CORRECT ANSWER
true
EDDIE SAYS
There are both attractive and repulsive forces between magnets.
  • ANSWERS
  • Question 2

Is this statement true or false?

A magnet has only a north OR a south pole.

 

CORRECT ANSWER
false
EDDIE SAYS
All magnets have one north pole and one south pole.
  • ANSWERS
  • Question 3

Is this statement true or false?

Magnets are used in loudspeakers to make sounds.

CORRECT ANSWER
true
EDDIE SAYS
Magnets are placed near an electromagnet that has electricity passing through it. The electromagnetism varies with the amount of electricity so the amount of attraction between the permanent magnet and the electromagnet varies. This movement pulls a paper cone in and out that makes the air vibrate. Air vibration is the sound we hear.
  • ANSWERS
  • Question 4

Complete this sentence by writing the missing word below.

The north pole of a magnet will attract the _________ pole of another magnet.

CORRECT ANSWER
south
EDDIE SAYS
Poles that are the same repel, poles that are different, attract. In this case a North pole will attract a south pole of another magnet.
  • ANSWERS
  • Question 5

Complete this sentence by writing the missing word below.

Explorers use an instrument called a __________ to help them with direction.

CORRECT ANSWER
compass
EDDIE SAYS
Compasses are well known to find the north, and therefore other directions also. Naturally occurring magnets could also be used in days before compasses were made. These naturally occurring magnets were called lodestones.
  • ANSWERS
  • Question 6

Complete this sentence by writing the missing word below.

Substances that are attracted by magnets are known as _______________ substances. 

CORRECT ANSWER
magnetic
EDDIE SAYS
The most commonly known magnetic substance is iron. The many different sorts of steel are only magnetic because they contain iron. Steel is not magnetic of itself. Two other metals are magnetic, cobalt and nickel. Some of the best magnets are made of Cobalt mixed with other metals.
  • ANSWERS
  • Question 7

Complete this sentence.

A freely suspended bar magnet will...

 

CORRECT ANSWER
come to rest in a north-south direction
EDDIE SAYS
The Earth has a north pole and a south pole. The suspended magnet will come to lie with its north pole pointing to the Earth's south pole, and vice versa.
  • ANSWERS
  • Question 8

Complete this sentence.

The pull of a magnet is strongest at...

CORRECT ANSWER
both of the poles
EDDIE SAYS
The strongest points of the magnet are at each end.
  • ANSWERS
  • Question 9

Is this statement true or false?

Magnets can attract all metallic substances.

CORRECT ANSWER
false
EDDIE SAYS
No, only pure iron, cobalt and Nickel are magnetic, or alloys (mixtures) that contain these metals. Note that there is something called paramagnetism, but that is beyond this course.
  • ANSWERS
  • Question 10

Which statement about magnets is true?

 

CORRECT ANSWER
like poles repel
EDDIE SAYS
The test of magnetism is that poles that are alike repel. Both magnets and magnetic materials that are not magnets attract, so you cannot distinguish between them by attraction.
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