Common Entrance Physics – 10 Multiple choice questions
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(Different questions each time the quiz is run)

1. Why is it preferable for ice skates to have a very thin edge?

To increase the pressure of the blades on the ice

So that the ice is less likely to crack

To increase the area of blade in contact with the ice.

To decrease the force on the ice

2. Which of the energy changes below represents that which takes place in an electric motor?

Electrical energy --------> Kinetic energy

Chemical energy --------> Kinetic energy

Chemical energy --------> Electrical energy

Strain energy --------> Kinetic energy

3. The diagram shows a log supported at its centre.
Peter is 1.5m from the centre and John is 2.5m from the centre.
How far will John have to move to make the log balance and in which direction?

2m away from the centre

0.5 m away from the centre

1m towards the centre

0.5m towards the centre

4. What is this formula used to calculate?

Speed

Density

Volume

Pressure

5. Approximately, how far does sound travel in 1 second?

1metre

1000 kilometres

1 kilometre

330 metres

6. Which of the following metals are magnetic

Nickel

Zinc

Copper

Lead

7. Something has gravitational potential energy when....

It is high up

It is heavy

it is moving

It is stretched

8. Sophia brings the north seeking pole of one magnet near to the north seeking pole of another magnet.

What will happen?

The magnets push each other apart

Nothing happens

The magnets attract each other

9. What event does this diagram represent?

Equinox

Eclipse of the Moon

Leap year

Eclipse of the Sun

10. The diagram shows a blue ball hanging from a string.

Which force arrow best represents the force of the string pulling on the ball?

D

B

A

C

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