A particle is travelling with a constant speed. This means
  • a. its acceleration is zero
  • b. it covers equal distances in equal time intervals
  • c. its position remains constant as time passes
  • d. it does not change its direction of motion
Which of these is an example of deceleration?
  • a. An airplane following a straight path in the sky
  • b. car approaching the red light
  • c. a rollercoaster moving down a hill
  • d. eagle taking off for flight
Speed equals distance divided by
  • a. Motion
  • b. Velocity
  • c. Time
  • d. Size
A place or object used for comparison to determine if something is in motion is called
  • a. A constant
  • b. Velocity
  • c. A position
  • d. A reference point
The rate at which velocity changes is called
  • a. motion
  • b. direction
  • c. acceleration
  • d. speed
Average speed is
  • a. The rate at which a slope changes
  • b. Equivalent to velocity
  • c. The rate at which an object is moving at a given instant
  • d. The total distance traveled divided by the total time
When an object's distance from another object is changing.
  • a. It has acceleration
  • b. It is speeding
  • c. It is in motion
  • d. It has a high velocity
In circular motion the
  • acceleration is zero
  • the direction of motion is fixed
  • the direction of motion changes continuously
  • velocity is constant
The distance-time graph of an object is shown in Figure given below The object
motion-mcq-class-9-2.png
  • is at rest
  • moves with a constant acceleration
  • moves with a constant speed
  • moves with a constant velocity
For a particle moving with a constant velocity, the distance-time graph is a straight line.
  • True
  • False
The area under a speed-time graph is represented by the unit
  • $m^2$
  • $m^4$
  • $m^3$
  • $m$
The area under a graph between two quantities is given in unit m/s. The quantities are
  • speed and time
  • distance and time
  • acceleration and time
  • velocity and time
The velocity-time graph of a particle is not a straight line. Its acceleration is
  • zero
  • negative
  • variable
  • constant
For a particle moving with constant acceleration along a straight line, the velocity-time graph is a straight line.
  • True
  • False
Scalar quantities can be added according to the rules of arithmetic
  • True
  • False
If A moves with respect to B then B moves with respect to A
  • True
  • False
A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is,
  • ulg
  • ul2g
  • (i) and (ii)
  • None of the above
0 h : 0 m : 1 s

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