8/8/2019 Johore Trial 10 Paper 3 Mark Scheme

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JABATAN PELAJARAN NEGERI JOHOR

PEPERIKSAAN PERCUBAANSIJIL PELAJARAN MALAYSIA 2010

UNTUK KEGUNAAN PEMERIKSA SAHAJA

Kertas soalan ini mengandungi 6 halaman bercetak dan 2 halaman tidak bercetak

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AMARAN

Peraturan pemarkahan ini SULIT dan Hak Cipta Jabatan PelajaranNegeri Johor.Kegunaannya khusus untuk pemeriksa yang berkenaan sahaja.

Sebarang maklumat dalam peraturan pemerkahan ini tidak bolehdimaklumkan kepada sesiapa. Peraturan pemarkahan ini tidak bolehdikeluarkan dalam apa-apa bentuk media.

4531/3 (PP)

PHYSICSKertas 3Peraturan PemarkahanOgos/Sept. 2010

8/8/2019 Johore Trial 10 Paper 3 Mark Scheme

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PEPERIKSAAN PERCUBAAN SPM 2009

PHYSICS 3

Question 1

1 (a) (i) 1 State the correct manipulated variable

Height // h

(ii) 1 State the correct responding variable

Frequency // Period // wave length

(iii) 1 State one fixed variable correctly

Speed of sound

(b) 6 Tabulate h, d, T and f

Give a tick () based on the following:

A Columns of h,d,T and f

B Correct units for h,d,T and f C All values of d correct

D All values of T consistent to 2 d.p.

E All values of f correct to 2 d.p.

F All values of h,T and f consistent to 1 or 2 d.p.

h/cm d/cm T/s f/Hz

30.0 3.6 0.18 5.56

25.0 3.2 0.16 6.25

20.0 2.8 0.14 7.1415.0 2.6 0.13 7.69

10.0 2.4 0.12 8.33

Note forF : Accept e.c.f. from D and E

Total marks : 6

(d) 5 Draw correctly a graph of f against h

Give a tick () based on the following:

A fat the y-axis, h at the x-

axis

B Correct units at both axes

C Uniform scale at both axes

D 5 points plotted correctly

[Note : 3 or 4 points plotted correctly : ]

E Best straight line

F

Minimum size of graph 5 x 4 big squares

(Big square : 2 cm x 2 cm)

(From the origin to the last point)

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Marks awarded :

Number of Marks

7 5

5-6 4

3-4 32 2

1 1

Total marks : 5

(e) 1 State the correct relationship based on the straight line drawn

For a straight line with negative gradient passing with y-axis interception,

Frequency is decrease linearly to height /f is decrease linearly to h

(f) 1 State one suitable precaution

Correct the zero error by calibrating the zero adjustment of CRO // Position of thepump must be perpendicular to the tiub and near to the top // Repeat experiment and

calculate the average // Position of microphone must be at the same distance //All

connection of the circuit must be tight

16

QUESTION 2

No. Marking criteria

Mark

Sub Total2(a)

(i)

State the changes correctly

- increases 1 1

(ii) State the value ofPwithin the acceptable range

- show graphical extrapolation correctly

- show horizontal line from the graph to the P-axis

- state the value within 4325 5

ignore unit and decimal places

1

1

1

3

b(i) Calculate the gradient, k, and state the value of k within the acceptable

range

- Draw sufficiently large triangle > 4 sq x 4 sq

- Correct substitution (follow candidates triangle)

- State the value / answer with correct unit.

=55.0

04500

= 8181.82 N m-3

1

1

1

3

(ii) Calculate the value of density,, by using gradient and state the value of

within the acceptable range

- g = gradient = 8181.822

=8.9

82.8181

= 834.88 kg m-3

1

1

2

(iii) Calculate the value of P within the acceptable range

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P = hg =( 2)(834.88)(9.8)

= 16 363.64 (w/o unit)1

1

2

(c) State one correct precautions

- The eye must be perpendicular to the scale of the metre rule to avoid

parallax error.

- Repeat readings and calculate average.

- Do not let the bubble inside the tube

1 1

Total 12

3(a) The change in temperature of water depends on its volume / mass 1 mark

(b) When the volume / mass increases, change in temperature decreases 1 mark

(c)(i) To investigate the relationship between the volume / mass andtemperature

1 mark

(ii) Manipulated variable : volume / mass of waterResponding variable : change in temperatureFixed variable : heating time

1 mark1 mark

(iii) Power supply, immersion heater, connecting wires, beaker, stirrer,

thermometer, water, measuring cylinder / balance , heater and stopwatch.

1 mark

(iv)

1 mark

(v) 1. 20 cm3//g of water is heated by an immersion heater for 5 minutes.2. Final temperature is recorded after 5 minutes.3. Repeat step 1 and 2 using 40 cm3, 60 cm3, 80 cm3 and 100 cm3 of water

1 mark1 mark1 mark

(vi)

Volume / cm3 // Mass/g Change Temperature / oC

20

40

60

80

100

1 mark

(vii) 1 mark

Total 12 marks

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WaterAir

StirrerPengacau

Immersion heaterPemanas rendamPower supply

Bekalan kuasa a.t

Connecting wireWire penyambung

BeakerBikar

ThermometerTermometer

Volume / cm3

Change in temperature / oC

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4(a) The time to reach the top depends on the mass //The current supply depends on the mass

1 mark

(b) When the mass increases, time / current increases 1 mark

(c)(i) To investigate the relationship between the mass and time / current 1 mark

(ii) Manipulated variable : massResponding variable : time / currentFixed variable : height

1 mark1 mark

(iii) Battery / DC power supply, slotted mass, connecting wires, 12V DCmotor, pulley with clamp, ammeter / stop watch, thread.

1 mark

(iv)

1 mark

(v) 1. 20 g of slotted mass is lifted by a motor to a height of 1 m.2. The time taken to reach the top is recorded // The ammeter reading is

recorded.3. Repeat step 1 and 2 using 40 g, 60 g, 80 g and 100 g of slotted mass

1 mark1 mark

1 mark

(vi)

mass / g time / s

20

40

60

80

100

1 mark

(vii) 1 mark

Total 12 marks

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Thread

Slotted massTable

Motor

A

Pulley

mass / g

time / s

END OF MARK SCHEME