Multiple choice questions

Multiple choice questions appear in both exam papers, and at both Tiers. Multiple choice questions are asked as questions, often starting with 'What is …' or 'Which of these …'.

You have four options to choose from in a multiple choice question. You must only choose one of these options, by writing your answer (A, B, C, or D) in a box.

It may help to reject any answers that you feel are obviously wrong, so that you can focus on choosing the right answer.

Sample question 1 - Foundation

Question

The strength of the magnetic effect of a solenoid can be changed.

Which of the following rows correctly describes what happens to the strength when the current and number of turns are increased? [1 mark]

	Increased current	Increased number of turns
A	Increases	Decreases
B	Increases	Increases
C	Decreases	Increases
D	Decreases	Decreases

A
Increased current	Increases
Increased number of turns	Decreases

B
Increased current	Increases
Increased number of turns	Increases

C
Increased current	Decreases
Increased number of turns	Increases

D
Increased current	Decreases
Increased number of turns	Decreases

OCR Gateway Science, GCE Physics, Paper J249, 2016.

	Increased current	Increased number of turns
A	Increases	Decreases
B	Increases	Increases	✔
C	Decreases	Increases
D	Decreases	Decreases

A
Increased current	Increases
Increased number of turns	Decreases

B
Increased current	Increases
Increased number of turns	Increases
	✔

C
Increased current	Decreases
Increased number of turns	Increases

D
Increased current	Decreases
Increased number of turns	Decreases

Sample question 2 - Foundation

Question

Why is an un-magnetised iron object attracted to a magnet? [1 mark]

A	The iron has magnetism induced by the magnet.
B	The iron has charged particles which attract the protons in the magnet.
C	The iron has charged particles which attract the electrons in the magnet.
D	The iron is attracted by the Earth's magnetic field.

A
The iron has magnetism induced by the magnet.

B
The iron has charged particles which attract the protons in the magnet.

C
The iron has charged particles which attract the electrons in the magnet.

D
The iron is attracted by the Earth's magnetic field.

OCR Gateway Science, GCE Physics, Paper J249, 2016.

A	The iron has magnetism induced by the magnet.	✔
B	The iron has charged particles which attract the protons in the magnet.
C	The iron has charged particles which attract the electrons in the magnet.
D	The iron is attracted by the Earth's magnetic field.

A
The iron has magnetism induced by the magnet.
✔

B
The iron has charged particles which attract the protons in the magnet.

C
The iron has charged particles which attract the electrons in the magnet.

D
The iron is attracted by the Earth's magnetic field.

Sample question 3 - Higher

Question

Which of the following is not needed to generate ac in an alternator? [1 mark]

A	Changing magnetic field
B	Coil of wire
C	Commutator
D	Rotating magnet

A
Changing magnetic field

B
Coil of wire

C
Commutator

D
Rotating magnet

OCR Gateway Science, GCE Physics, Paper J249, 2016 - Higher.

Sample question 4 - Higher

Question

The diagram shows two poles of a magnet.

Two magnet poles face each other, north on one side, south on the other.

X is the position of a wire carrying a current perpendicularly into the paper.

Which direction does the wire move? [1 mark]

A	↓
B	→
C	←
D	↑

A
↓

B
→

C
←

D
↑

OCR Gateway Science, GCE Physics, Paper J249, 2016 - Higher.

Sample exam questions - magnetism and magnetic forces - OCR GatewayMultiple choice questions