P5 Science · Chapter 11brightbit.net/worksheets

Magnets

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1.
Which of the following materials is magnetic?
(a) Copper(b) Aluminium(c) Iron(d) Plastic
2.
What happens when two north poles of magnets are brought together?
(a) They attract(b) They repel(c) Nothing happens(d) They cancel each other out
3.
Where is the magnetic force of a bar magnet the strongest?
(a) In the middle(b) Evenly distributed(c) At the poles (both ends)(d) On the flat sides
4.
How does a compass work?
5.
What happens if you cut a bar magnet in half?
(a) You get one north pole piece and one south pole piece(b) You get two smaller complete magnets, each with a N and S pole(c) Both pieces lose their magnetism(d) You get one magnetic piece and one non-magnetic piece
6.
State TWO uses of magnets in everyday life.
7.
Can magnetic force act through non-magnetic materials?
(a) No, magnets only attract magnetic materials directly(b) Yes, magnetic force can act through paper, glass, and plastic(c) Only through water(d) Only at very high temperatures
8.
How can you make a temporary magnet from a steel nail?
9.
Why are steel paper clips used in paper clip chains, but copper clips cannot form chains?
(a) Steel is heavier(b) Steel clips become temporarily magnetised and can attract other steel clips; copper is non-magnetic(c) Copper clips are too smooth(d) Steel clips have sharper edges
10.
A student places a magnet near a pile of mixed iron filings and sand. What will happen?
(a) Both the iron filings and sand will be attracted(b) Only the iron filings will be attracted to the magnet(c) Only the sand will be attracted(d) Nothing will happen

Answer key — P5 Science: Magnets

For parents. Step-by-step explanations for every question are free on brightbit.net.

1.(c) Iron
2.(b) They repel
3.(c) At the poles (both ends)
4.A compass needle is a small magnet that aligns with Earth's magnetic field, with one end pointing north and the other south
5.(b) You get two smaller complete magnets, each with a N and S pole
6.Any two of: compass navigation, fridge magnets, electric motors, maglev trains, MRI scanners, speakers, credit card strips
7.(b) Yes, magnetic force can act through paper, glass, and plastic
8.Stroke the nail repeatedly in one direction with one pole of a permanent magnet (magnetisation by stroking)
9.(b) Steel clips become temporarily magnetised and can attract other steel clips; copper is non-magnetic
10.(b) Only the iron filings will be attracted to the magnet

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Answer key — P5 Science: Magnets

For parents. Step-by-step explanations for every question are free on brightbit.net.

1.(c) Iron

2.(b) They repel

3.(c) At the poles (both ends)

4.A compass needle is a small magnet that aligns with Earth's magnetic field, with one end pointing north and the other south

5.(b) You get two smaller complete magnets, each with a N and S pole

6.Any two of: compass navigation, fridge magnets, electric motors, maglev trains, MRI scanners, speakers, credit card strips

7.(b) Yes, magnetic force can act through paper, glass, and plastic

8.Stroke the nail repeatedly in one direction with one pole of a permanent magnet (magnetisation by stroking)

9.(b) Steel clips become temporarily magnetised and can attract other steel clips; copper is non-magnetic

10.(b) Only the iron filings will be attracted to the magnet

Free worksheet from BrightBit · more free P1–P6 worksheets at brightbit.net/worksheets