5054 S13 Qp 11

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS
General Certificate of Education Ordinary Level

5054/11

PHYSICS
Paper 1 Multiple Choice

May/June 2013
1 hour

Additional Materials:

*9093782875*

Multiple Choice Answer Sheet
Soft clean eraser
Soft pencil (type B or HB is recommended)

READ THESE INSTRUCTIONS FIRST
Write in soft pencil.
Do not use staples, paper clips, highlighters, glue or correction fluid.
Write your name, Centre number and candidate number on the Answer Sheet in the spaces provided unless this has been done for you.
DO NOT WRITE IN ANY BARCODES.
There are forty questions on this paper. Answer all questions. For each question there are four possible answers A, B, C and D.
Choose the one you consider correct and …show more content…

useful output energy

input energy machine wasted energy

The machine is 50% efficient.
Which equation is correct?
A

input energy = useful output energy

B

useful output energy = input energy + wasted energy

C

wasted energy = input energy + useful output energy

D

wasted energy = useful output energy

© UCLES 2013

5054/11/M/J/13

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13 A glass beaker contains water. When the centre of the base of the beaker is heated, a convection current is set up. glass beaker convection current

water

heat

Which statement explains this?
A

The evaporation of water causes water molecules to rise to the surface.

B

The expansion of water molecules causes them to rise to the surface.

C

The water above the heat source rises because it becomes less dense.

D

The water at the sides sinks because it becomes less dense.

14 Two identical metal plates are painted, one matt (dull) white and the other matt black. These are placed at equal distances from a radiant heater as shown. The heater is turned on for five minutes. matt white metal plate

radiant heater matt black metal plate

Which metal plate absorbs more energy and which plate emits more energy in this time? absorbs more

emits more

A

black

black

B

black

white

C

white

black

D

white

white

© UCLES 2013

5054/11/M/J/13

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15 Using an electric kettle, 200 g of water at 100 °C is converted into steam at 100 °C in 300 seconds.
The specific latent heat