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Chapter 2 Practice Paper: Kinematics — question paper

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QQ/S3PH/CH2

Secondary 3 · Physics (G2 / G3)

Chapter 2 Practice Paper

Kinematics

Duration: 40 minutes
Total: 30 marks
Name:
Class:
Register No.:
Date:

READ THESE INSTRUCTIONS FIRST

  • Write your name, class and register number in the spaces at the top of this page.
  • Answer all questions.
  • Give numerical answers correct to 3 significant figures unless stated otherwise, with units where a quantity is calculated.
  • Take the acceleration of free fall g as 10 m/s² unless stated otherwise.
  • The number of marks is given in brackets [ ] at the end of each question or part question.
  • The total number of marks for this paper is 30.

Original practice material written for the MOE Physics syllabus. It is not an official MOE or school examination paper. Speed, velocity and acceleration, displacement–time and velocity–time graphs, free fall.

For Examiner’s Use
Section A/ 10
Section B/ 20
Total/ 30

Section A: Multiple-choice questions[10 marks]

Choose the one correct answer for each question.

  1. 1

    A delivery cyclist rides 900 m along a straight road in 150 s. Which statement about the motion is correct?

    1. AThe average speed is 0.17 m/s
    2. BThe average speed is 6.0 m/s
    3. CThe displacement is 900 m west
    4. DThe velocity must have been constant
    ( )
  2. 2

    A train travelling at 30 m/s slows uniformly to 12 m/s in 45 s. Its acceleration is

    1. A−0.40 m/s²
    2. B+0.40 m/s²
    3. C−0.67 m/s²
    4. D−1.3 m/s²
    ( )
  3. 3

    On a displacement–time graph, a straight line sloping upwards at a constant angle shows

    1. Athe object at rest
    2. Buniform acceleration
    3. Cuniform velocity
    4. Dnon-uniform velocity
    ( )
  4. 4

    A stone is dropped from rest and falls for 2.5 s. Taking g = 10 m/s², its speed just before landing is

    1. A2.5 m/s
    2. B12.5 m/s
    3. C25 m/s
    4. D50 m/s
    ( )
  5. 5

    The area between a velocity–time graph and the time axis represents

    1. Aacceleration
    2. Bdistance travelled
    3. Caverage speed
    4. Dthe gradient
    ( )

Section B: Structured questions[20 marks]

Answer all questions in the spaces provided.

  1. 1

    A bus travels along a straight road. Its velocity against time is recorded.

    Velocity of the bus

    Time (s)01020304050
    Velocity (m/s)08.016168.00
    1. (a)

      Describe the motion of the bus between 20 s and 30 s.

      [1]
    2. (b)

      Calculate the acceleration of the bus during the first 10 s.

      acceleration =m/s²[2]
    3. (c)

      Calculate the total distance travelled by the bus in the 50 s.

      [3]
    4. (d)

      Use your total from (c) and the 50 s journey time to state the mean velocity of the bus over the whole trip.

      mean velocity =m/s[1]
  2. 2

    A coin is dropped from rest from a bridge and hits the water 2.2 s later. Take g = 10 m/s² and ignore air resistance.

    1. (a)

      State what is meant by free fall.

      [1]
    2. (b)

      Calculate the speed of the coin when it hits the water.

      speed =m/s[2]
    3. (c)

      Calculate the height of the bridge above the water.

      height =m[2]
    4. (d)

      In practice the coin lands slightly slower than the calculated speed. Name the force responsible and state its direction.

      [2]
  3. 3

    A ball is thrown vertically upwards with a speed of 15 m/s. Take g = 10 m/s² and ignore air resistance.

    1. (a)

      Explain, in terms of forces or acceleration, why the ball slows as it rises.

      [2]
    2. (b)

      Calculate the time taken to reach the highest point.

      time =s[2]
    3. (c)

      Calculate the maximum height reached.

      height =m[2]

— End of paper —