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Surname Initial(s)
Centre
Paper Reference
No.

Signature
Candidate
No. 5 0 4 9 0 1
Paper Reference(s)


5049/01 Examiner's use only



Edexcel GCSE Team Leader's use only

Physics
P3 ­ Topics 5 and 6 Question Leave

Wednesday 11 June 2008 ­ Afternoon Number Blank


1
Time: 1 hour
2
3…

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FORMULAE
You may find the following formulae useful.

pressure P1 = P2
= constant
temperature (Kelvin) T1 T2


pressure × volume P1 × V1 = P2 × V2
= constant
temperature (Kelvin) T1 T2


kinetic energy = electronic charge × accelerating voltage KE = e × V

work done =…

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TURN OVER FOR QUESTION 1




3
*N33026A0320* Turn over

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1. (a) What is meant by basal metabolic rate?

.......................................................................................................................................
(1)

(b) Alistair wants to increase his basal metabolic rate.




Tick all of the methods in the table below which would increase his basal metabolic
rate.

method tick

sleep more

take more exercise

eat less

increase muscle to…

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(i) Complete the bar chart to show his daily energy use.



20
percentage of total
daily energy use




10




0
liver brain heart kidneys skeletal other exercise digestion
muscle systems

(1)

(ii) Which of the organs shown uses the least energy each day?

................................................................................................................................
(1) Q1

(Total 6…

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2. Toni is revising her physics for an exam.




Her revision book has the following diagram of a cathode ray tube.



F


B D
E
A 6Vac G



F

C

(a) Which letter shows

(i) the anode,

................................................................................................................................
(1)

(ii) the cathode?

................................................................................................................................
(1)




6
*N33026A0620*

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(b) Complete the following sentences by putting a cross ( ) in the correct box.

anode.

(i) The electron beam is produced by the heated cathode.

screen.


air.

(ii) The inside of the tube contains a gas.

a vacuum.


light waves

(iii) When the electrons hit the screen,…

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3. Toni's notes are incomplete.
She has the following neutron/proton graph for stable isotopes.



130
120
110
100
number of 90
neutrons 80
70
60
50
40
30
20
10
0
10 20 30 40 50 60 70 80 90100

number of protons


(a) Mark with an X…

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4. (a) (i) Explain what is meant by refraction of light.

................................................................................................................................

................................................................................................................................
(1)

(ii) Complete the following diagram to show the path of a ray of light through an
optical fibre.
An accurate diagram is required.


optical
fibre




ray of
light



(2)

(b) Max has suspected kidney…

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5. Five years ago Sohanna was diagnosed
with breast cancer.
She had treatment and the cancer went
into remission.

Recently her doctor told her that the
cancer had spread into her neck bones.

She needs palliative therapy.



(a) Explain what is meant by palliative therapy.

.......................................................................................................................................

.......................................................................................................................................
(1)…

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