Topic 10 & 11 Magnetism, motor effect & EM induction

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Total cards: 24•Content version: v3•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

1 What are the two ends of a bar magnet called?

Back (Answer)

north-seeking pole and south-seeking pole, or just north pole and south pole

Front (Question)

2 Name two magnetic materials.

Back (Answer)

any two from iron, cobalt, nickel, steel

Front (Question)

3 What happens if you arrange two magnets with their north poles close to each other?

Back (Answer)

They repel each other.

Front (Question)

4 How can you arrange two magnets so they attract each other?

Back (Answer)

put opposite poles close to each other/put a north pole near a south pole

Front (Question)

5 What is a magnetic field?

Back (Answer)

the space around a magnet which affects magnetic materials

Front (Question)

6 How can you find the shape of a magnetic field?

Back (Answer)

use iron filings or plotting compasses

Front (Question)

7 Name two electrical devices that use magnets.

Back (Answer)

any two from motors, loudspeakers, generators

Front (Question)

8 Why do compasses point north?

Back (Answer)

The Earth has a magnetic field.

Front (Question)

9 Describe the shape of the Earth?s magnetic field.

Back (Answer)

similar to the field of a bar magnet

#10

Front (Question)

10 Why are compass needles weighted at one end?

Back (Answer)

In most places the Earth’s magnetic field is not parallel to the surface.

#11

Front (Question)

11 Which part of the Earth is responsible for the Earth?s magnetic field?

Back (Answer)

outer core

#12

Front (Question)

12 What is the difference between the Earth?s north magnetic pole and its North Pole?

Back (Answer)

The Earth spins around an axis through the North Pole; the north magnetic pole is where compasses point to.

#13

Front (Question)

13 What is an induced magnet?

Back (Answer)

something that is a magnet only because it is in the magnetic field of another magnet

#14

Front (Question)

14 Name two materials that an induced magnet could be made from.

Back (Answer)

any two from iron, cobalt, nickel, steel

#15

Front (Question)

15 You are using plotting compasses to find the shape of the magnetic field of a bar magnet. Which way does the needle point?

Back (Answer)

away from the north pole/towards the south pole

#16

Front (Question)

16 How does a magnetic field diagram show where the field is strongest?

Back (Answer)

strongest where the lines are closest together

#17

Front (Question)

17 What is a uniform magnetic field?

Back (Answer)

a field with the same strength and direction everywhere

#18

Front (Question)

18 How can you produce a uniform magnetic field?

Back (Answer)

using two flat magnets

#19

Front (Question)

19 What is the shape of the magnetic field around a wire with a current flowing through it?

Back (Answer)

circular around the wire

#20

Front (Question)

20 What is an electromagnet?

Back (Answer)

a magnet made when current flows through a coil of wire

#21

Front (Question)

21 How can you create a magnetic field around a wire?

Back (Answer)

pass a current through it

#22

Front (Question)

22 Where is the magnetic field of a wire strongest?

Back (Answer)

close to the wire

#23

Front (Question)

23 How can you increase the strength of the field around a wire?

Back (Answer)

increase the current

#24

Front (Question)

24 How can you change the direction of the field around a wire?

Back (Answer)

change the direction of the current