final f4-objektif

Upload: aziz-abdullah

Post on 09-Apr-2018

224 views

Category:

Documents


0 download

TRANSCRIPT

  • 8/7/2019 final f4-objektif

    1/22

  • 8/7/2019 final f4-objektif

    2/22

    7. Radio 5 RTM station operates at 105 .6 M Hz. The expression of the frequency

    in units of Hz is

    A 1.056 x 108 Hz

    B 1.056 x 106 Hz

    C 1.056 x 104 HzD 1.056 x 10-4 Hz

    E 1.056 x 10-8 Hz

    8. The measurements of length according to their value in ascending order are

    A 7 x 10 - 4 km , 7 x 10 2 cm , 7 x 10 4 mm

    B 7 x 10 2 cm , 7 x 10 4 mm , 7 x 10 - 4 km

    C 7 x 10 4 mm , 7 x 10 - 4 km , 7 x 10 2 cm

    9 The ability of an instrument give consistent reading , when repeated readings aretaken is called as

    A accuracy B precision

    C sensitivity D error

    10. Based on the table below, what are the measuring instruments J, K and L?

    Measuring

    instrumentsMeasurement

    J 2.52 0.01 cm

    K 15.2 0.1 cm

    L 125.4 0.1 g

    J K LA Micrometer Vernier Spring

    screw gauge calipers balance

    B Micrometer Vernier Triple beamScrew gauge calipers balance

    C Vernier Metre Triple beam

    calipers ruler balance

    2

  • 8/7/2019 final f4-objektif

    3/22

    11. Diagram shows a micrometer screw gauge reading when it is closed at its gap.

    The subsequent readings must be corrected by

    A adding 0.02 mm

    B subtracting 0.02 mm

    C adding 0.03 mm

    D subtracting 0.03 mm

    12. The diagram shows the existence of zero errors of a vernier calipers.

    What is the value of the zero error?

    A + 0.04 cm B - 0.04 cm

    C + 0.06 cm D - 0.06 cm

    13. Which of the following is the best graph ?

    3

  • 8/7/2019 final f4-objektif

    4/22

    14. An experiment is carried out to find the relationship between mass and

    acceleration of a trolley on a wooden runway. The experiment is repeated by

    adding the number of trolleys. The responding variable in this experiment is

    A the length of the wooden runway.

    B accelerationC mass

    15. Which of the following graphs show that y increases linearly with x?

    16. In a simple pendulum experiment, the length of the pendulum and time for 20oscillations are recorded. The length of the pendulum is a

    A manipulated variable

    B responding variable

    C fixed variable

    17. A car moves with a constant velocity. The acceleration of the car is

    A increased B decreased

    C zero D uniformly

    4

  • 8/7/2019 final f4-objektif

    5/22

    18.

    Based on the figure above , calculate the acceleration.

    A -5 ms-2 B - 500 ms-2

    C 5 ms-2 D 50 ms-2

    E 500 ms-2

    19. A trolley starts from rest and is uniformly accelerated to speed of 12 cms-1 in 5

    s. What is the distance travelled by the trolley?

    A 16 cm B 24 cm

    C 28 cm D 30 cm

    E 42 cm

    20. The following figure shows a tape chart.

    Based on figure above, which of the following is true?

    At the beginning of motion At the end of motion

    A the velocity the accelerationunchanged increases

    B the velocity the acceleration

    increases increases

    C the velocity the accelerationincreases unchanged

    D the velocity the acceleration

    unchanged unchanged

    5

  • 8/7/2019 final f4-objektif

    6/22

    21. Which of the following shows an object moving with decreasing acceleration ?

    22. The graph shows how the velocity of a car changes with time

    Which of the following can be deduced from the graph?

    A The car accelerates uniformly

    B The car decelerates until it stops

    C The car first accelerates and then moves with a steady velocityD The car first decelerates and then moves with a steady velocity

    23.

    Based on the velocity time graph above calculate the deceleration.

    A 60 ms-2 B 30 ms-2

    C 2.5 ms-2 D 1.25 ms-2

    E 0.5 ms-2

    6

  • 8/7/2019 final f4-objektif

    7/22

    24. The graph shows how the velocity, v of an object changes with time, t.

    If the motion of the object is illusterated by displacement,s against time,t

    graph ,which of the following is true.

    25. Which of the following cases represents a uniformly accelerated motion?

    A A straight line with constant slope in a velocity-time graphB A straight line with constant slope in an acceleration-time graph

    C A straight line with constant slope in a displacement -time graph

    26. Inertia of an object is

    A the friction force exerts to the object

    B the friction force exerts to the object

    C the force against the motion of the object

    D the property of the object which resists a change in its motion.

    27. The factor that affect the inertia of an object is

    A the acceleration of the object

    B the temperature of the object

    C the weight of the object

    D the mass of the object

    7

  • 8/7/2019 final f4-objektif

    8/22

    28. Figure shows a hammer.

    The head of the hammer can be tightened onto the handle by

    A pushing the head of the hammer

    B rotating the handle of the hammer

    C applying a knock on the handle of the hammer

    29. When a boy is chased by a cow, which of the following is the best path to run.

    30. The period of oscillations of an inertial balance depends on

    A The acceleration due to gravity

    B The amplitude of the oscillations

    C The mass of the metal cylinder

    D The force to push the balance

    8

  • 8/7/2019 final f4-objektif

    9/22

    31. Which of the following is the units of momentum ?

    A Ns B kg ms-2

    C kg s-2 D kg-1s-2

    32.

    Based on the figure above , what is the value of v ?

    A 2.0 ms-1 B 2.5 ms-1

    C 3.0 ms-1 D 3.5 ms-1

    E 4.0 ms-1

    33. In an inelastic collision , which of the following is not conserved?

    A Total amount of massB Total amount of energy

    C Total amount of momemtum

    D Total amount of mass kinetic energy

    34. Which of the following is not obeys the principle of conservation of momentum ?

    A The inelastic collision

    B The elastic collision

    C The explosion

    D The linear motion

    35. 1 N is equivalent to

    A 1 kg ms-1 B 1 kg ms-2

    C 1 ms kg-1 D 1 kg s m-1

    9

  • 8/7/2019 final f4-objektif

    10/22

    36. Which of following is not effects of a constant force?

    A Change the direction of motion

    B Change the shape of an object

    C Change the velocity of a moving object

    D Change the acceleration of a moving object

    37. Figure shows an object of mass 2 kg is pulled on a floor by a force of 15 N. Thefrictional force between the object and the floor is 3 N.

    What is the acceleration of the object?

    A 2 ms-2 B 5 ms-2

    C 6 ms-2 D 8 ms-2

    E 10 ms-2

    38. Which of the following objects acted on by a pair of forces will accelerate?

    10

  • 8/7/2019 final f4-objektif

    11/22

    39. The figure shows the graph of motion for two objects M and N is acted on by a

    same force.

    Which comparison is correct about the mass of M and N?

    A Mass of M = Mass of N

    B Mass of M < Mass of N

    C Mass of M > Mass of N

    40. Which of the following graph is true to show the relationship between the

    acceleration, a , the mass , m and the force ,F

    11

  • 8/7/2019 final f4-objektif

    12/22

    SECTION B STRUCTURE

    1. Figure 1.1 shows an instrument that can be found in a physics laboratory.

    a) Name the instrument.

    __________________________________________________________________

    ( 1 mark )

    b) What is the function of the part labeled X?

    __________________________________________________________________( 1 mark )

    c) The instrument below shows the reading for the thickness of a glass block

    ( i ) What is the value of the smallest scale division for the instrument above?

    __________________________________________________________________

    ( 1 mark )

    (ii ) What is the thickness of the glass block?

    12

  • 8/7/2019 final f4-objektif

    13/22

    __________________________________________________________________

    ( 1 mark )

    2. Firdaus, Afiq and Iqbal were asked to measure the diameter of a test tube in the

    laboratory. The actual diameter of the test tube is 2.75 cm. Each of themmeasured three times and recorded their measurements as in Table 1.

    StudentDiameter/cm

    Firdaus2.73 2.76 2.74

    Afiq2.65 2.67 2.66

    Iqbal 2.83 2.92 2.85

    Table 1

    a) Suggest an appropriate instrument to measure the diameter of a test tube.

    .[1m]

    b) Among the three sets of measurements

    i) which is accurate and consistent?

    [1m]

    ii) which is consistent but not accurate?

    ...[1m]

    iii) which is not accurate and not consistent?

    ...

    [1m]

    c) Suggest an error likely to be found in Afiqs measurements.

    .

    [1m]

    d) How can he reduce the error

    13

  • 8/7/2019 final f4-objektif

    14/22

    .....

    [1m]

    3. Diagram 1 shows a car driven by a kidnapper has overtook a police car at 2.00

    p.m. The police car then followed the kidnappers car.

    DIAGRAM 1

    DIAGRAM 2

    14

    Police car

    Kidnappers car

    Velocity / ms-1

    Time0

    2.00 pm

    20

    25

    2.01 pm 2.02pm

    Police car

    Kidnappers car

  • 8/7/2019 final f4-objektif

    15/22

    Based on graph in Diagram 2, state the motion of the

    (a) (i) kidnappers car

    ....[ 1 mark]

    (ii) police car

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

    [ 1 mark]

    (b) (i) What is the net force acting on the police car after 2.01 p.m?

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

    .

    [ 1 mark]

    (ii) Give a reason for your answer in 3(b)(i).

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

    .

    [ 1 mark]

    (c) Sketch a displacement against time graph of the police car.

    15

    Displacement/m

    Time0

    2.00 pm 2.01 pm 2.02pm

  • 8/7/2019 final f4-objektif

    16/22

    4. FIGURE 3 shows a velocity-time graph of a period of 7 seconds.

    FIGURE 3

    (a) Calculate the acceleration of the object

    (i) for the first 2 s

    [2 m](ii) when time t=6 s

    [2 m]

    (b) What is the displacement of the object

    16

    [ 2 MARKS]

    v/ m s-1

    t/ s

    1 2 3 4 5 6 7

  • 8/7/2019 final f4-objektif

    17/22

    (i) for the first 6 s

    [1 m](ii) for the whole journey

    [1 m]

    (c) What is the average velocity of the object for the whole journey?

    ...[1 m]

    (d) Based on the velocity-time graph, sketch the acceleration time graphfor the whole journey of the object.

    [2 m]

    17

  • 8/7/2019 final f4-objektif

    18/22

    5. Figure below shows a man standing on a stationary boat. He then jumps out of the

    boat onto the jetty . The boat moves away from the jetty as he jumps.

    (a)State the physics principle that is involved in the movement of the boat as the man

    jumps onto the jetty.

    ..

    .[1m]

    (b)Explain why the boat moves away from the jetty when the man jumps.

    ....[1m]

    (c)The mass of the man is 50 kg and he jumps at a velocity of 2 m s-1 . The mass ofthe boat is 20 kg. Calculate the velocity of the boat as the man jumps.

    18

  • 8/7/2019 final f4-objektif

    19/22

    [2m]

    (d)Name one application of the physics principle stated in (a) in an exploration ofouter space.

    [1m]6. Diagram 3 shows a wooden block with the force of 80 N downward.

    (a) Label and name the force act toward the wooden block.

    [ 2 marks]

    (b) If the tension in the rope is 80N, find the acceleration of the wooden blockas it being raised.

    [2 marks]

    (c) How much tension in the rope will produce an acceleration of 3ms-2?

    [2marks](d) How much tension produces a steady velocity?

    19

    5kg

    80N

    Diagram 3

  • 8/7/2019 final f4-objektif

    20/22

    [2 marks]

    SECTION C - PAPER 3

    1. A student carried out an experiment to find out about the relationship between

    mass and inertia. He set up an inertia balance and prepared a few plasticineballs of various masses, m. For each value of m, he measured the oscillation

    period, T, of the inertia balance. The results of the experiment are shown in

    FIGURE 1.1 in the form of a graph ofT2 against m.

    FIGURE 1.1

    20

  • 8/7/2019 final f4-objektif

    21/22

    (a) The oscillation period, T of the inertia balance is a variable defined

    operationally. What does Trepresent in the experiment?

    ..

    [1 m]

    (b) State the relationship betweenT

    andm

    .

    ...

    [1 m](c) Base on your answer in (b), deduce the relationship between inertia

    and mass.

    ..

    ..[1 m]

    (d) Calculate the gradient of the Graph T2 against m.

    [3 m](e) When an unknown mass, m of a plasticine ball is used in the experiment, it is

    found that the period of oscillation, T is 0.7 s. Determine the mass, m of the plasticine

    ball .

    Show on the graph, how you determine the value ofm.

    [4 m]

    (f) State one precaution that should be taken during this experiment.

    ..

    [1 m]

    21

  • 8/7/2019 final f4-objektif

    22/22

    END OF QUESTION PAPERS ************GOOD LUCK