Motion Test

Motion

This is Motion Test-03 for CBSE class 09 Science.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
The area under the velocity – time graph gives the
  • A
    displacement of the body
    Correct
  • B
    distance of the body.
  • C
    acceleration of the body
  • D
    velocity of the body.
2
Which of the following velocity – time graph represents uniform acceleration?
  • A
    Option A
    Correct
  • B
    Option B
  • C
    Option C
  • D
    Option D
3
Which of the following is a false statement
  • A
    a body can have a constant speed and still have varying velocity
  • B
    a body can have a constant velocity and still have a varying speed.
    Correct
  • C
    a body can have zero velocity and still be accelerated.
  • D
    the direction of the velocity of a body can change when its acceleration is constant.
4
Is the following graph possible ?
Question 4 figure 1
  • A
    can’t predict
  • B
    both a and b
  • C
    possible
  • D
    not possible
    Correct
5
The above graph represents
Question 5 figure 1
  • A
    non – uniform acceleration
  • B
    constant acceleration
  • C
    constant retardation
    Correct
  • D
    constant velocity
6
Which of the following situations are not possible?
  • A
    A body moving with constant acceleration but with zero velocity.
  • B
    A body moving with a constant velocity in an accelerated motion
    Correct
  • C
    all of these
  • D
    A body moving horizontally with an acceleration in vertical direction
7
If a body is at rest, then its velocity – time graph is
  • A
    Option A
  • B
    Option B
  • C
    Option C
    Correct
  • D
    Option D
8
Which of the following is correct about the following distance – time graph?
Question 8 figure 1
  • A
    speed of A is greater than speed of B
    Correct
  • B
    None of these.
  • C
    speed of A is less than speed of B
  • D
    speed of A is equal to speed of B
9
Four cars A,B,C and D are moving on a levelled road. Their distance time graph is given as under The correct statement is A Car C is fastest B Car A is faster than car D C Car c is slowest D Car B is slowest
Question 9 figure 1
  • A
    All of these
  • B
    (a) and (d) are correct
    Correct
  • C
    (b) and (c) are correct
  • D
    (a), (b) and (c) are correct
10
If we get a curve line in displacement – time graph then the velocity is
  • A
    constant
  • B
    non-uniform
    Correct
  • C
    decreasing
  • D
    uniform
11
The third equation of motion is-
  • A
    \({V^2} = {u^2} + 2as\)
    Correct
  • B
    \(S = ut - \frac{1}{2}a{t^2}\)
  • C
    \({u^2} = {v^2} + 2as\)
  • D
    \(S = ut + \frac{1}{2}a{t^2}\)
12
Match the following with correct response. (1) Rate of change of velocity (2) Rate of change of displacement (3) Rate of change of distance (4) Rate of change of speed in circular path (A) Uniform circular motion (B) Velocity (C) Acceleration (D) Speed
  • A
    1-B, 2-D, 3-A, 4-C
  • B
    1-D, 2-A, 3-C, 4-B
  • C
    1-C, 2-B, 3-D, 4-A
    Correct
  • D
    1-A, 2-C, 3-B, 4-D
13
Match the following with correct response. (1) I equation of motion (2) II equation of motion (3) III equation of motion (4) Retardation (A) \({V^2} = {u^2} + 2as\)(B) v = u + at (C) \( - \left( {\frac{{v - u}}{t}} \right)\)(D) S = ut + \(\frac{1}{2}a{t^2}\)
  • A
    1-C, 2-B, 3-D, 4-A
  • B
    1-D, 2-A, 3-C, 4-B
  • C
    1-A, 2-C, 3-B, 4-D
  • D
    1-B, 2-D, 3-A, 4-C
    Correct
14
Match the following with correct response. (1) Graph showing uniform velocity (2) Graphshowing uniformly accelerated velocity (3) Graph showing uniformly retarded (4) Graph showing non-uniform motion (A) Straight line sloping upwards (B) Curved line (C) Straight line sloping downwards (D) Straight line parallel to x-axis
  • A
    1-B, 2-D, 3-A, 4-C
  • B
    1-C, 2-B, 3-D, 4-A
  • C
    1-D, 2-A, 3-C, 4-B
    Correct
  • D
    1-A, 2-C, 3-B, 4-D
15
Which of the following statement is correct? A When a body starts from rest, u = 0 B When a body comes to rest, V = 0 C For a body under free fall, \(a = - 9.8m/{s^2}\) D For uniform velocity, a = 0
  • A
    All of these
  • B
    (a) and (b) are correct
  • C
    (b) and (c) are correct
  • D
    (a), (b) and (d) are correct
    Correct