fiziksetengahtahun201097version

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SOALAN PENILAIAN KURIKULUM PERTENGAHAN TAHUN SPM

PEJABAT PELAJARAN DAERAH SEGAMAT

OBJECTIVE QUESTIONS:

1. Which of the following statement is not true?A. Displacement is the total length of the path taken by the object from one

location to the other in a specific direction.

B. Distance is a vector quantity because the direction of motion is considered.C. Speed is the distance travelled per unit time.

D. The SI unit for speed is the same as the unit for velocity. B

. Hamidi cycles 3 km north from his house and then turn east and cycles another 4 km and stopped atSivas house. The total displacement from Hamidis house to Sivas house is

A. 7 km B. 1 km

C. km D. 5 km D

2. A motorcyclist started pressing his brake from 20 ms-1 to stop with a uniform deceleration in 4seconds.

What is his deceleration, in ms-2?

A. 5 B. 80

C. -80 D. -5 A

. Ka Yan used a ticker-timer to study the motion of a trolley. In which of the following tape charts

shown by Ka Yan below is the trolley moving with an increasing acceleration?


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C

4. A vehicle experiences an acceleration when there is a change of

A. distance B. displacement

C. direction D. velocity D.

.

The acceleration of the trolley attached to a ticker-timer as shown in the above diagram is

A. 600 cms-2 B. 300 cms-2

C. 2.4 cms-2 D. 60 cms-2 A

6. A bullet of a mass of 10 g travels at a speed of 200 ms -1 hits a wooden wall and embedded into thewooden wall. It takes 0.2 seconds before it stopped in the wall. The deceleration of the bullet is

A. 10 000 ms-2 B. 40 ms-2

C. 1 000 ms-2 D. 400 ms-2 A

7. Which of the following physical quantity remains constant when a fruit is dropped from a tree?A. Momentum B. Velocity

C. Acceleration B

8. Which part of the displacement-time graph shown in the diagram below represents a non-moving

vehicle?


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A. OP B. PQ

C. QR D. ST B

9. The diagram below shows the acceleration-time graph of a car.

Which of the following displacement-time graphs below represents the movement of the above car?


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B

10. The diagram below shows a velocity-time graph of two moving objects P and Q. Both of the started at

the same position and at the same time. P meets Q again at a time aftertseconds.

What is the value oftin second?

A. 4 B. 5

C. 2 D. 3 D

12. The diagram below show the velocity-time graph of the movement of a lorry.


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Which of the following displacement-time graph represents the correct relationship with the velocity-

time graph of the lorry?

A3. The following ticker-tape describes the movement of a 2 kg trolley attached to a ticker timer.

Which of the following statements is true about the movement of the trolley?A. The trolley is moving with a constant deceleration.


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B. The trolley is moving with a constant velocity.

C. The trolley is moving constant change of velocity.

D. The trolley is moving with a constant change of acceleration.C

4. Which of the following velocity-time graph shows the movement of an elastic ball dropped from acertain height and bounced back to the same height? (Assume that the downward direction is

positive).

A.

B.

C.

D.


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D

15. Which of the following statement is true for a small van travelling at an initial velocity of 4 ms-1

covering 45 m in 5 seconds?

A. The van is moving with a constant velocity.B. The van experiences deceleration.

C. The velocity of the van is 14 ms-1 after 5 s.

D. The distance travelled after 10s in 90 m.C

6. The diagram below shows the motion of an air puck recorded by a stroboscopic camera with afrequency of 50 Hz.

The average speed of the air puck in cms-1 isA. 50 B. 60

C. 75 D. 100

B7. A big airplane needs long landing track to land and stop compared to a small air plane because

A. its inertia is very big

B. it moves with a very high velocityC. its braking power is small

D. it is too long. A

8. The diagram below shows a water spray system.


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The concept used to explain the system is

A. Newtons First Law B. Newtons Second Law

C. Pressure Law D. Boyles Principle A

9. In an experiment to determine the relationship between inertia and mass, the inertia is represented by

A. length of inertia balance B. the period of oscillationC. type of inertia blade D. the angle of displacement of the inertia balance

B

20. A constant force is applied to an object to move it. When the mass of the object is increased withoutincreasing the force

A. The acceleration increases B. the rate of change of velocity decreases

C. the inertia increases D . the displacement reduced. B

Structured Questions

. The diagram below shows a ticker-timer tape chart of the motion of a toy car. Every single tapecontains 10 dot intervals made by a ticker-timer with a frequency of 50 Hz.

(a) What is the time for each dot interval?

..

[1 mark]


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(b) What is the time for every single tape (strip)?

[1 mark]

(c) Describe the motion of the toy car in

(i) OA

[1 mark]

(ii) AB

[1 mark](d) (i) What is the distance moved by the object in OA?

[1 mark](iii) Calculate the average speed of OA

[2 marks](e) Calculate the average velocity represented by the ticker tape

(i) number 1:

(ii) number 5:

[2 marks]

(f) Calculate the acceleration of the toy car in OA.


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[2 marks]

2. The diagram below shows the velocity-time graph of a car

(a) Describe the motion of the car in

(i) PQ

[1 mark]

(ii) RS.

[1 mark]

(iii) ST....

[1 mark]

(b) Calculate the distance travelled from R to T

[3 marks]

(c) Calculate the average velocity from R to T


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[2 marks]

(d) Calculate the acceleration of the motion at

(i) PQ

[1 mark](ii) QR

.

[1 mark]

(iii) ST

..

[1 mark]

(e) Sketch the acceleration-time graph for the car for the first 10 s on the axes given below.

[2 marks]

Section B

1. (a) What is the meaning of mass? [1 mark]


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Diagram (a) Diagram (b)

(b) Diagram (a) shows a car and Diagram (b) shows a school bus. Compare the difficulty in whichto accelerate both vehicles at the same rate and to negotiate corners. Relating the mass of the

car and the school bus with the difficulty of obtaining same accelerating rate or negotiate

corners, deduce a relevant physics concepts. [5 marks]

(c) By using a suitable physics concept, explain how a person can escape if he is

being chased by a large animal such as buffalo.

[4 marks]

(d) (i) Diagram (c) shows a pile driver which is used in construction. Explain how the hammer isused to drive the pile into the ground. [6 marks]

Diagram (c)

(ii) Diagram (d) shows a man jumping from a tower in a bungee jump event.


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Diagram (d)By using suitable physics concepts explain necessary safety measures to be taken in

making the rope if the jumper has a great mass. [4marks]

PAPER III

Section AAnswer all questions in this section.

1. A group of students using a stroboscope studies the motion of an air puck moving on a smooth surface

after being given a slight push as shown in the diagram below. The stroboscope has 10 slits andmakes 2 complete cycles per second. The students investigate the relationship between the

acceleration of the object and the diameter of the air puck.

Direction of motion of the air puck


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The air puck with a diameter of 25.0 cm is pushed with a constant force. The motion is recorded as

in Diagram (a). The diameter of the air puck is reduced to 20.0 cm, 15.0 cm, 10.0 cm and 5.0 cm

and being given the same push. The motions recorded are as shown in Diagrams (b), (c), (d) and(e).

|-------------------------x1--------------------------|

Diagram (a)

|-----------------------------------x2----------------------------------|

Diagram (b)

|------------------------------------------x3--------------------------------------------|

Diagram (c)

|--------------------------------------------------x4-------------------------------------------------------|

Diagram (d)

|--------------------------------------------------------x5----------------------------------------------------------|


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Diagram (e)

(a) From the above experiment, state the

(i) manipulative variable .

[1 mark]

(ii) responding variable

.

[1 mark]

(iii) constant variable ..

..

[1 mark]

(b) Base on Diagrams (a), (b), (c), (d) and (e),

(i) Measure the lengthx1,x2,x3,x4 andx5 and record in the space provided.

[2 marks]

(ii) Iff= np where n = number of slits andp is the number of complete cycles per second,

calculate the acceleration, a, forx1,x2,x3,x4 andx5 using the formula a = 2xf2

[2 marks]

(iii) Tabulate your results for diameter, d, length,x, and acceleration, a, in the spaceprovided below.


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[3 marks]

(c) On the graph paper on page _____, plot a graph ofa against d.

[5 marks]

(d) Base on the graph in 1(c), state the relationship between a and d.

[1 mark]A graph of acceleration, a, against diameter, d.


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2. A student carries an experiment to investigate the relationship between the final velocity, v of a

trolley moving with a uniform acceleration, and time t. The relationship between the final velocity,v of the trolley and the time to reach the final velocity is as shown in the graph below.

(a) (i) Based on the graph, write the relationship between final velocity, v and time, t.

..

[1 mark]

(ii) Find v, when t= 5 s.


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[2 marks](b) (i) Calculate the gradient of the graph.

[3 marks](ii) State the unit of the gradient

..

[1 marks](iii) If v = u + at, where a, is a constant, write the value ofa giving suitable unit fora.

..

..

[2 marks](c) From the graph also find the value ofv when t= 0 s.

[2 marks]

(d) State one safety precaution to ensure the accuracy in making measurement in this experiment.

[1 mark]

Section B

Answerone question only from this section


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1. The diagram above shows a fully loaded and an empty cargo. The captain of the fully loaded

cargo has to stop the engine of his cargo 25 km away from the harbour before anchoring. The

captain of the non-loaded cargo needs to stop the engine about 10 km away from the harbourbefore anchoring.

Based on your observation,

(a) Write one suitable inference that can be made.(b) Write one appropriate hypothesis for this investigation.

(c) With the use of appropriate apparatus, describe an experimental framework to test your

hypothesis. In your description, state clearly the following

i. Aim of the experimentii. Variables involved in the experiment

iii. List of apparatus and materialsiv. Arrangement of the apparatus

v. The procedure of the experiment which include the method of controlling the manipulated

variable and the method of measuring the responding variable.vi. Way you tabulate the data.

vii. Way you would analyse the data.

[12 marks]


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Diagram (a)

Diagram (b)The diagram above shows a small girl sliding along a slide. She found that when slides from a

higher slide, her velocity at the end of the slide is higher.

Based on your observation,(a) Write one suitable inference that can be made.

(b) Write one appropriate hypothesis for this investigation.

(c) With the use of appropriate apparatus, describe an experimental framework to test yourhypothesis. In your description, state clearly the following

i. Aim of the experiment

ii. Variables involved in the experimentiii. List of apparatus and materials

iv. Arrangement of the apparatus

v. The procedure of the experiment which include the method of controlling the manipulatedvariable and the method of measuring the responding variable.

vi. Way you tabulate the data.

vii. Way you would analyse the data.

[12 marks]


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MARKING SCHEME

Objective Section:1. B2. D3. A4. C5. D6. A7. A8. B9. B10.B11.D12.A13.C

14.D15.C16.B17.A18.A19.B20.B

Structured QuestionsQuestion 1

(a) 0.02 s [1](b) 0.2 s [1]

(c) (i) Accelerate uniformly [1](ii) Decelerate non-uniformly/decreasing deceleration[1]

(d) (i) 30 cm [1](ii) 30 cms-1 [1]

(e) (i)

[1]= 10 cms-1 [1]

(ii)

[1]= 50 cms-1 [1]

(f) [1]= 50 cms-2 [1]

Question2(a) (i) accelerating uniformly

[1](ii) moving with constant velocity/not accelerating [1]


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(iv) Decelerating uniformly/reducing velocity uniformly[1]

(b) (30)(4 + 6) [2]

= 150 m with unit [1]

(c)

[1]= 12.5 m [1]

(d) (i) 2.5 ms-2

[1](ii) 5 ms-2 [1]

(iv) 15 ms-2 [1](e)

1 correct [0]2 correct [1]All correct [2]

SectionB1. (a) Quantity of matter in an object [1]

(b) Car in Diagram (a) has less mass [1]Less inertia [1]Bus in Diagram (b) has greater mass

[1]Greater inertia [1]

The greater the mass the greater is the inertia

[1](c) A buffalo has very great mass and therefore has greater inertia

[1]The buffalo is very difficult to change direction when it is running very fast

[1]A boy has very small mass compared to buffalo

[1]The boy can run in a zigzag manner or change direction quickly to escape fromthe chasing buffalo. [1]


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(d) (i) The hammer has a very large mass[1]

It has then a very big inertia [1]The hammer released hits the pile with a very big force[1]

The pile is very large compared to the hammer [1]

Release from very high position above the ground[1]Produce very great impact towards the ground [1]

(ii) The rope must be very strong [1]Avoid breaking if too much force is applied[1]Very elastic [1]Allows to prolong the time of stretch[1]

Paper IIISection A

Question 1:(a) (i) Diameter, dof the air puck

[1](ii) Acceleration, a, of the air puck [1]

. (iii)Frequency of stroboscope/force applied[1]

(b) 6.4 cm, 8.6 cm, 10.6 cm, 12.9 cm, 14.0 cmAll correct [2]At least 3 correct [1]

5.12 ms-2, 6.88 ms-2, 8.48 ms-2, 10.32 ms-2, 11.20 ms-2. All correct[2]

At least 3 correct [1]

(c)Diameter, d/cm Length, x/ cm Acceleration, a/ms-2

25.0 6.4 5.12

20.0 8.6 6.8815.0 10.6 8.4810.0 12.9 10.325.0 14.0 11.20

(d) Acceleration, a, relates linearly with diameter, d.

Question 2:

(a) (i) V relates linearly with t[1](ii) V = 23 ms-1 , intrapolation on the graph shown

[2](b) (i) Draw triangle on the graph (one side at least 8

units) [1]

[1]


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= 2.5 unit [1](ii) ms -2 [1](iii) Value of a = gradient

[1]a = 2.5 ms-2. [1]

(c) 10 cms-1 (accept without unit),

[1]extrapolation shown [1]

(d) Avoid parallax error by placing eyes vertically above the measurement.[1]

Or any suitable answers

Section B1.

EXEPRIMENT 1: FACTORS AFFECTING INERTIA

Marks

Inference Inertia is affected by mass. 1

Hypothesis When mass increase, inertia also increases 1Aim of

Experiment

To find the relationship between inertia and mass. 1

Variables

Manipulative

RespondingFixed

Mass, m.

Inertia, or (period of oscillation, T)

Liquid density , acceleration due to gravity,g.

1

1

Set ofapparatus and

materials

G-clamp, inertia balance, digital stop-watch.Or

G-clamp, triple beam balance, plastercine and digital stop-watch.

1

Set up of

apparatus

As shown in the diagram

or

1 mark (diagram clear and labeled)

Procedure 1. Apparatus and material set as shown in the above diagram.

2. A cylinder is plunged into one of the holes and the balancebrought to one side.

3. The balance is released and simultaneously the stop-watch starts.

4. After 10 complete oscillation, the stop-watch stopped and thetime taken for 10 complete oscillations recorded.

1

1

Both correct

Draw a jig-saw blade

attached to a leg of a tableusing G-clamp and clusters

of weighted plastercine

attached to the other end ofthe blas.


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5. Repeat steps 2 to 4 with 2 and 3 cylinders.

Accept the next method and give marks on:The controlling of manipulative variables.

The recording of responding variable.

Repetition for other manipulative variables.

1

DataTabulation

The data is tabulated in the following tableNumber of

cylinders

Time for 10

complete

oscillations,T/s

Time for one

complete

oscillation, T/s

T2/s2

1

2

3

Suit for the other experiment if chosen.

1

Conclusion It was found that the period of oscillation (inertia) increase as the

mass increases.1

Question 2

EXEPRIMENT 1: FACTORS AFFECTING INERTIA

Marks

Inference Final velocity depends on the height of the slope. 1

Hypothesis When height of slope increase, final velocity alsoincreases 1Aim of

Experiment

To find the relationship between final velocity and height of slope. 1

Variables

Manipulative

RespondingFixed

Height, h.

Final velocity, v)

Frequency of ticker-timer, length of plank

1

1

Set ofapparatus and

materials

Friction compensated runway, trolley, ticker-timer, ticker-tapes, books tohinge the runway, meter rule, power supply.

1

Set up of

apparatus

As shown in the diagram

Both correct


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1 mark (diagram clear and labeled)

Procedure 1. Apparatus and material set as shown in the above diagram.2. The plank is raised to 5.0 cm at one end and the trolley then released.

3. The ticker tape is observed and the final velocity is calculated by using

the formula v = u + at or v = where s is taken from the ten last dots

4. Procedure 2 to 4 were repeated with the height of the plank 10.0 cm, 15.0

cm, 20.0 cm and 25.0 cm.

All readings recorded in the table.

1

1

1

DataTabulation

The data is tabulated in the following table

Height of

plank, h/cm

Distance of

movement for

the last 10dots

Final velocity, v,

/cms-1

5.010.0

15.0

20.0

25.0

1

Conclusion It was found that the final velocity increase as the height of the plank

increases.1


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Scripts prepared by:Hj. Md. Sharani bin Hj. YusofSMK Buloh Kasap Segamat,

Johor.Tel: 019-7853334, 017-7246656

Note: All answers are only suggestions. Alterations are welcome where necessary. Thankyou.

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