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Centre Number

Candidate Number

TIME1 hour.

INSTRUCTIONS TO CANDIDATES

Write your Centre Number and Candidate Number in the spaces provided at the top of this page.You must answer the questions in the spaces provided.Do not write outside the boxed area on each page or on blank pages.Complete in black ink only. Do not write with a gel pen.Answer all nine questions.

INFORMATION FOR CANDIDATES

The total mark for this paper is 60.Figures in brackets printed down the right-hand side of pages indicate the marks awarded to each question or part question.Quality of written communication will be assessed in Question 8(a).

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Double Award Science: PhysicsUnit P1Foundation Tier

[GDW31]FRIDAY 28 FEBRUARY 2020, MORNING

General Certificate of Secondary Education2019–2020

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1 Energy can be changed from one form to another.

Complete the boxes below to show the main energy change that is taking place.

An example has been completed for you.

Toaster

electrical

energy

heat

energy

Ball falling from a height

energy energy

Microphone

energy energy

Burning coal

energy energy [6]

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2 (a) The graph of distance against time for part of a car journey is shown below.

0

100

200

300

20 40 60 80 100

Time/s

Dis

tanc

e/m

0

(i) During which time period is the car travelling the fastest?

to seconds [1]

(ii) How far has the car travelled after 90 seconds?

m [1]

(iii) Describe the car’s motion during the time period 50 – 60 seconds.

[1]

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(iv) Use values from the graph to calculate the average speed of the car overthe first 20 seconds.

You are advised to show your working out.

Average speed = m/s [3]

(b) On another occasion, the car starts at rest and increases its speed to 27 m/sover a time of 9 seconds.

Calculate the rate of change of speed of the car.

You are advised to show your working out.

Rate of change of speed = m/s2 [3]

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3 This question is about the efficiency of electrical appliances.

(a) An electric light bulb produces 20 J of light energy. The electrical input energy is100 J.

(i) How much energy is wasted?

J [1]

(ii) In what form is this energy wasted?

[1]

(b) The input electrical energy to a kettle is 2400 J.

The kettle uses 1920 J of this energy to boil water.

Calculate the efficiency of the electric kettle.

You are advised to show your working out.

Efficiency = [3]

(c) Circle the correct unit, if any, for efficiency.

joule watt no unit [1]

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4 (a) A car is moving forwards in a straight line.

The forces acting on the car at three different times are shown below.

600 N 3000 NA

600 N 100 NB

600 N 600 NC

Complete the table below by inserting the letter that applies to each description.

Description A, B or C

Car is travelling at a constant speed

Car’s speed is increasing at a steady rate

Car is slowing down[3]

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(b) A cross-country skier accelerates forward.

The skier and his equipment have a combined mass of 65 kg. Calculate the resultant force that must be produced to cause him to accelerate at 2 m/s2.

You are advised to show your working out.

Resultant force = N [3]

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5 An atom of iron can be described using the notation

Fe56

26.

Complete the table below for a neutral atom of iron stating:

• the name of the missing particle;• the number of each particle;• their locations within the atom.

Name of particle Number of particles Location

Nucleus

Neutron

Electron

[6]

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6 This question is about radioactivity.

(i) Why are some nuclei radioactive?

[1]

(ii) Three types of radiation are emitted by radioactive sources.

Use lines to match each of the statements to the correct type of radiation.

Radiation

alpha

beta

gamma

Statement

electromagnetic wave of high energy

fast electron

consists of two protons and two neutrons[3]

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(iii) The diagram below shows different types of radiation emitted by threeradioactive sources. In each case the radiation passes through, or is absorbedby, different materials.

A

B

C

Thin sheetof paper

Thin sheetof aluminium

Sheet oflead

Radioactivesources

Source: Principal Examiner

State the type of radiation, (alpha, beta or gamma) being emitted by the source in each case.

Source A:

Source B:

Source C: [3]

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7 A stone has a density of 8 g/cm3 and a mass of 640 g.

220 cm3

graduated cylinder

stone

Source: Principal Examiner

It is placed in a large measuring cylinder which contains 220 cm3 of water.

(i) Calculate the volume of the stone.

You are advised to show your working out.

Volume = cm3 [3]

(ii) Calculate the final reading on the measuring cylinder.

Final reading = cm3 [1]

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8 (a) In this question you are asked to state the Principle of Conservation of Energy and then describe two energy changes which occur when an archer shoots an arrow horizontally into a target.

In this question you will be assessed on the quality of your written communication skills including the use of specialist scientific terms.

The Principle of Conservation of Energy.

The energy stored in the bow after the arrow is pulled back.

The energy gained by the arrow as it leaves the bow.

The energy change which takes place when the arrow strikes the target.

[6]

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(b) A constant force of 210 N is used to pull a box along a level surface at constantspeed.

210 N

Calculate how far the box is moved if 630 J of work is done.

You are advised to show your working out.

Distance moved = m [3]

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9 A drawing pin is pushed into a notice board.

notice board

area of drawingpin tip = 0.01 cm2 area of drawing

pin head = 0.8 cm2

(a) Calculate the pressure the drawing pin exerts on the notice board when it ispushed with a force of 2 N.

Include the unit with your answer.

Do not change any of the units given in the question when doing yourcalculation.

You are advised to show your working out.

Pressure = [4]

Unit = [1]

(b) Explain fully, in terms of pressure, why the design of the drawing pin tip makes iteasy to push it into the notice board.

[2]

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THIS IS THE END OF THE QUESTION PAPER

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Permission to reproduce all copyright material has been applied for.In some cases, efforts to contact copyright holders may have been unsuccessful and CCEAwill be happy to rectify any omissions of acknowledgement in future if notified.

Examiner Number

For Examiner’suse only

QuestionNumber Marks

1 2 3 4 5 6 7 8 9

TotalMarks

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