P1 higher

Clevedon School

Science Department

Physics P1 Final Test Higher

Write all answers on lined paper.

Do not write in this booklet

2 EQUATIONS energy = mass × specific heat capacity × temperature change energy = mass × specific latent heat efficiency =

useful energy output (× 100%) total energy input

wave speed = frequency × wavelength power = voltage × current energy supplied = power × time average speed =

distance time

distance = average speed × time s=

acceleration =

(u + v) ×t 2 change in speed time taken

force = mass × acceleration weight = mass × gravitational field strength work done = force × distance power =

work done time

power = force × speed KE =

1 2 mv 2

momentum = mass × velocity force =

change in momentum time

GPE = mgh mgh =

1 2 mv 2

resistance = © OCR 2012

voltage current

17 11 (a) Lasers produce an intense beam of light which is coherent.

Explain what is meant by intense and coherent. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2] (b) Many telephone companies use optical fibres to carry signals over large distances.

Look at the enlarged diagram of an optical fibre.

[2]

Continue the ray to show its path along the fibre from one end to the other. (c) Some people think the use of mobile phones is safe.

Others think mobile phones may be harmful to health.

Write about one of the possible health risks from using mobile phones and suggest how this risk can be reduced. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2] [Total: 6] Š OCR 2012

Turn over

18 12 Vicky finds that the energy bills for her house are high.

She knows that double glazing will reduce the energy transfer through her windows. outside pane of glass inside pane of glass air gap

Look at the information in the table. type of window

size of air gap in mm

average cost to fit per window in £

total saving for a 3 bedroomed house in £ each year

P

4

600

170

Q

8

600

196

R

16

600

209

S

20

600

210

T

32

600

210

Describe how the design of double glazed windows reduces energy transfer and use the data to evaluate the effectiveness of increasing the air gap on reducing energy transfer.

The quality of written communication will be assessed in your answer to this question. .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... ..................................................................................................................................................... [6] [Total: 6]

© OCR 2012

19 13 (a) Neil notices that when ice melts, the temperature does not change.

Explain why. ................................................................................................................................................... .............................................................................................................................................. [1] (b) Neil is holding a party. He wants to make sure he has enough ice to cool all the drinks.

He investigates how much ice is needed to cool a glass of orange juice.

He adds ice to cool the orange juice from 20°C to 5°C.

(i)

temperature of the ice

0°C

original temperature of the orange juice

20°C

mass of orange juice

0.4 kg

specific heat capacity of orange juice

4100 J / kg °C

specific latent heat of water

330 000 J / kg

Calculate the amount of energy transferred from the drink. ........................................................................................................................................... ........................................................................................................................................... ...........................................................................................................................................

[2]

answer .................................... J (ii)

What mass of ice would need to melt to transfer this amount of energy? ........................................................................................................................................... ........................................................................................................................................... ...........................................................................................................................................

[2]

answer .................................... kg

[Total: 5]

© OCR 2012

Turn over

15 (b) Olivia adds a voltmeter to the circuit to measure the voltage across the photocell.

Here are her results. ammeter reading = 0.1 A voltmeter reading = 2.5 V Calculate the power output of the photocell.

The equations on page 2 may help you. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... answer ..........................................

units ...........................

[2]

[3]

[Total: 5] [Total: 6]

Š OCR 2008

[Turn over

26 (d) Look at the picture of a prism.

air

glass prism

ray 1 ray 2

Describe, using properties of light, the differences between the path taken by ray 1 and the path taken by ray 2. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2] [Total: 9]

END OF QUESTION PAPER

Š OCR 2012

15 SECTION C – Module P1 9

This question is about waves. (a) A loudspeaker gives out a sound of frequency 80 Hz. What does 80 Hz mean? .............................................................................................................................................. [1] (b) Look at the diagram of a water wave.

displacement

0

(i)

2

4

6

8

10

12

14

16

18

20

22

distance 24 in cm

What is the wavelength of this wave?

answer ................................................... cm [1] (ii)

The speed of this water wave is 20 cm/s.

Calculate the frequency of this wave. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... answer ................................................... Hz [2] [Total: 4]

© OCR 2013

Turn over

22 13 This question is about uses of light. (a) The picture shows Sheila using a signalling lamp.

Light messages must be sent using a code.

Describe how light signals are used to send messages in Morse code. ................................................................................................................................................... .............................................................................................................................................. [2] (b) CD players use laser light to extract information from a compact disc (CD). (i)

How does a CD store information? ...................................................................................................................................... [1]

(ii)

How is the information recovered using laser light? ...................................................................................................................................... [1] [Total: 4]

END OF QUESTION PAPER

Š OCR 2011