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Publié par | aproe |
Nombre de lectures | 65 |
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GCSE in PHYSICS Specimen Assessment Materials 1
For teaching from 2011
GCSE in PHYSICS
SPECIMEN ASSESSMENT MATERIALS
GCSE in PHYSICS Specimen Assessment Materials 3
Contents
Page
Unit 1
Question Paper (Foundation Tier) 5
Question Paper (Higher Tier) 23
Mark Schemes 41
Assessment Grids 55
Unit 2
Question Paper (Foundation Tier) 59
Question Paper (Higher Tier) 75
Mark Schemes 89
Assessment Grids 101
Unit 3
Question Paper (Foundation Tier) 105
per (Higher Tier) 123
Mark Schemes 137
Assessment Grids 151
Controlled Assessment 155
GCSE in PHYSICS Specimen Assessment Materials 5
Candidate Name Centre Number Candidate Number
0
GCSE
PHYSICS
FOUNDATION TIER (Grades G-C)
PHYSICS 1: Energy, radiation and the Universe
SPECIMEN PAPER
(1 hour)
INSTRUCTIONS TO CANDIDATES
Write your name, centre number and candidate number in the spaces at the top of this
page.
Answer all questions.
Write your answers in the spaces provided in this booklet.
INFORMATION FOR CANDIDATES
The number of marks is given in brackets at the end of each question or part-question.
You are reminded that assessment will take into account the quality of written
communication used in your answer to question 10(c).
GCSE in PHYSICS Specimen Assessment Materials 6
Equations and Units
P = IV power = current × voltage
energy transfer = power × time E = Pt
units used (kWh) = power (kW) × time (h)
cost = units used × cost per unit
useful energy [or power] transfer
% efficiency = ×100
total energy [or power] input
mass mdensity = ρ =
volume V
wave speed = wavelength × frequency c = λf
distance
speed =
time
change in velocity Δv
acceleration [or deceleration] = a =
time t
vua=+ t where u = initial velocity
1 v = final velocity x = (u + v)
2
a = acceleration
t = time
x = displacement
voltage Vresistance = R =
current I
momentum = mass × velocity p = mv
resultant force = mass × acceleration F = ma
change in momentum Δp
force = F =
time t
work = force × distance W = Fd
primary coil voltage primary coil turns V N1 1= =
secondary coil voltage secondary coil turns V N2 2
force F
pressure = p =
area A
GCSE in PHYSICS Specimen Assessment Materials 7
Units
1 kWh = 3.6 MJ
T / K = θ / °C + 273
SI multipliers
Prefix Multiplier Prefix Multiplier
3 −12 p k 1010
−9 6 n 10 M 10
9 −6 G 10μ 10
12 −3 m T 1010
GCSE in PHYSICS Specimen Assessment Materials 8
Answer all questions
1. (a) List A gives three energy sources used to generate electricity.
List B gives environmental problems that may be caused by using different energy
sources.
Draw a line from each energy source in list A to an environmental problem it might
cause in list B. Draw 3 lines only. [3]
List B List A
Produces noise
Nuclear
Produces large amounts of
polluting gases
Tides
Requires large amounts of
water for cooling purposes
Wind farm
Affects river estuaries and
wildlife using the river
(b) The energy flow diagram for a coal-fired power station is shown below.
8% lost as heat in
the moving parts in 10% lost as heat in
the power station waste gases
100% input Electrical
energy to the from burning
National Grid coal
50% lost as heat in the
water used for cooling
(i) Calculate the percentage of electrical energy fed into the National Grid.
.....................%
[1]
(ii) Coal-fired power stations produce more carbon dioxide than other power
stations. Give a reason why many people want to reduce the amount of
carbon dioxide pollution. [1]
............................................................................................................................
....................................................................................................................
9
GCSE in PHYSICS Specimen Assessment Materials 9
2. (a) Background radiation is all around us.
• Some rocks on earth are radioactive. • Particles shower down upon us from space.
• Nuclear power stations add a small amount to nature's radioactivity.
Explain, giving a clear reason for your answer, which of the following statements
below contains the most truth. [2]
(i) Background radiation is completely harmless.
(ii) Background radiation can cause harm but very few people are affected by it.
(iii) adiation will kill us.
............................................................................................................................
....................................................................................................................
....................................................................................................................
............................................................................................................................
(b) The table shows readings of background radiation, taken using a Geiger counter. The
readings are all taken in the same place.
Counts in one
27 20 28 18 15
minute
Why do you think the numbers are different?
Put a tick ( ) in the box next to the statement which best explains why the numbers
are different. [1]
Experimental error
Different numbers of radioactive particles
are being produced each minute
The readings were taken at different times
of day.
GCSE in PHYSICS Specimen Assessment Materials 10
3. (a) Electrical appliances often carry a 'rating plate' (as shown below) which gives
information about the appliance.
Model No. A7620
Serial No. 1277993
230 V ~ 50 Hz
2 kW
Use the information on the rating plate to complete the sentences that follow.
This appliance should be connected to a mains supply voltage of ……………
with a frequency of ............................. The appliance transfers ........................
joules of energy every second. [3]
(b) The table gives information from the rating plate for several domestic appliances,
together with the time for which they are switched on in 1 week.
Appliance Power Time switched on
Vacuum cleaner 1.5 kW 1 hour
Toaster 1.2 kW 1 hour
Kettle 3.0 kW4 hours
TV 0.5 kW 30hours
Nightlight 0.005 kW70hours
Identify the appliance which uses the most energy in the week and state why. [2]
…………………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………………