The Physics Question Bank

Question 01

01.1 Complete the sentence.
Two north poles placed close together will ___________ each other.    [1 mark]

Mark scheme

repel (1)

01.2 Which metal is a magnetic material?
Tick (✓) one box.
☐ aluminium   ☐ copper   ☐ nickel   ☐ silver    [1 mark]

Mark scheme

nickel (1)

01.3 Describe the difference between a permanent magnet and an induced magnet.    [2 marks]

Mark scheme

a permanent magnet produces its own magnetic field (1)
an induced magnet only becomes a magnet when it is placed in a magnetic field / loses most of its magnetism when removed (1)

01.4 In which direction do magnetic field lines point?    [1 mark]

Mark scheme

from the north pole to the south pole (1)

Question 01 total: 5 marks

Question 02

02.1 Describe the shape of the magnetic field around a straight wire carrying a current.    [1 mark]

Mark scheme

circles around the wire (centred on the wire) (1)

02.2 An electromagnet is made by wrapping a coil of wire around an iron core.
Give two ways to make the electromagnet stronger.    [2 marks]

Mark scheme

any two from (1 each): increase the current · add more turns to the coil · (use an iron core)

02.3 Electromagnets are used to lift scrap iron in a scrapyard.
Explain why an electromagnet is used rather than a permanent magnet.    [2 marks]

Mark scheme

an electromagnet can be switched off (1)
so the scrap iron can be dropped where it is needed (1)

02.4 What is a solenoid?    [1 mark]

Mark scheme

a coil of wire (1)

Question 02 total: 6 marks

Question 03

A wire carrying a current is placed between the poles of a magnet. The wire moves.

03.1 What is this effect called?    [1 mark]

Mark scheme

the motor effect (1)

03.2 Fleming’s left-hand rule is used to find the direction of the force. What does each finger represent?
(a) first finger (b) second finger (c) thumb    [2 marks]

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all three correct: first finger = field, second finger = current, thumb = motion / force (2)
one or two correct (1)

03.3 Give one way to make the wire move in the opposite direction.    [1 mark]

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reverse the current / reverse the magnetic field (swap the poles) (1)

03.4 Give two ways to increase the force on the wire.    [2 marks]

Mark scheme

any two from (1 each): increase the current · use a stronger magnet · increase the length of wire in the field

03.5 In which position is the force on the wire biggest?    [1 mark]

Mark scheme

when the wire is at right angles to the magnetic field (1)

Question 03 total: 7 marks

Question 04

A student investigates how the number of turns on an electromagnet affects how many paper clips it can pick up. Table 1 shows her results.

Number of turns	10	20	30	40	50
Number of paper clips	4	8	12	9	20

04.1 Name the independent variable and the dependent variable.    [2 marks]

Mark scheme

independent: number of turns (1)
dependent: number of paper clips picked up (1)

04.2 Which result is anomalous?    [1 mark]

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40 turns – 9 paper clips (1)

04.3 Describe the pattern in the results.    [1 mark]

Mark scheme

the more turns, the more paper clips are picked up / directly proportional (1)

04.4 Give one control variable.    [1 mark]

Mark scheme

any one from (1): the current · the type / size of paper clips · the same iron core

Question 04 total: 5 marks

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END OF TEST. Total: Separate Physics 31 marks · Combined Science 23 marks.

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