Motion Class 9 Physics
Q 1 – A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is,
(a) u/g
(b) u2/2g
(c) u2/g
(d) u/2g
(b) u2/2g
Q 2 – An object travels 20 min 5 sec and then another 40 min 5 sec. What is the average speed of the object?
(a) 6 m/s
(b) 2 m/s
(c) 12 m/s
(d) 0 m/s
(a) 6 m/s
Q 3 – The numerical ratio of displacement to distance for a moving object is
(a) always less than 1
(b) always equal to 1
(c) always more than 1
(d) equal or less than 1
(d) equal or less than 1
Q 4 – The S.I. unit of acceleration is:
(a) ms–2
(b) m/s
(c) ms2
(d) m
(a) ms–2
Q 5 – If the displacement of an object is proportional to square of time, then the object moves with
(a) uniform velocity
(b) uniform acceleration
(c) increasing acceleration
(d) decreasing acceleration
Ans – (b) uniform acceleration
Q 6 – What is the average velocity of a car that moved 60 km in 3 hours?
(a) 60 km/h
(b) 20 km/h
(c) 30 km/h
(d) 10 km/h
Ans – (b) 20 km/h
physics mcq questions class 9 motion with answers
Q 7 – From the given υ – t graph, it can be inferred that the object is
(a) in uniform motion
(b) at rest
(c) in non-uniform motion
(d) moving with uniform acceleration
Ans – (a) in uniform motion
Q 8 – In which of the following cases of motions, the distance moved and the magnitude of the displacement is equal?
i. If the car is moving on a straight road
ii. If the car is moving in a circular path
iii. The pendulum is moving to and fro
iv. The earth is moving around the sun
(a) only(ii)
(b) (i) and (iii)
(c) (ii) and (iv)
(d) only (i)
Ans – (d) only (i)
Q 9 – Suppose a boy is enjoying a ride on a merry-go-round which is moving at a constant speed of 10 ms-1 It implies that the boy is
(a) at rest
(b) moving with no acceleration
(c) in accelerated motion
(d) moving with uniform velocity
(c) in accelerated motion
class 9 physics motion
Q 10 – Which of the following situations are not possible?
(a) A body moving with constant acceleration but with zero velocity.
(b) A body moving horizontally with acceleration in vertical direction
(c) A body moving with a constant velocity in an accelerated motion
(d) All of these
(c) A body moving with a constant velocity in an accelerated motion
class 9 physics motion mcq
Q 11 – Area under a υ – t graph represents a physical quantity which has the unit
(а) m2
(b) m
(c) m3
(d) ms -1
(b) m
Q 12 – A worker covers a distance of 40 km from his house to his place of work, and 10 km towards his house back. Then the displacement covered by the worker in the whole trip is
(a) zero km
(b) 10 km
(c) 30 km
(d) 50 km
(c) 30 km
Q 13 – Four cars A, B, C, and D are moving on a levelled road. Their distance versus time graphs is shown in the adjacent figure. Choose the correct statement.
(a) Car A is faster than car D.
(b) Car B is the slowest.
(c) Car D is faster than car C.
(d) Car C is the slowest.
(b) Car B is the slowest.
Q 14 – Choose the correct option:
(a) distance is a scalar, velocity is a vector , acceleration is a vector.
(b) distance is a vector, velocity is a scalar, acceleration is a vector.
(c) distance is a vector, velocity is a vector, acceleration is a vector.
(d) distance is a scalar, velocity is a vector, acceleration is a scalar.
(a) distance is a scalar, velocity is a vector, acceleration is a vector.
Q 15 – Acceleration is a vector quantity, which indicates that its value
(a) Is always negative
(b) Is always positive
(c) Is zero
(d) Can be positive, negative or zero
(d) Can be positive, negative or zero
Q 16 – Which of the following figures correctly represents the uniform motion of a moving object?
(a)
Q 17 – Name the instrument used to measure instantaneous speed of a vehicle
(a) multimeter
(b) ammeter
(c) speedometer
(d) accelerator
(c) speedometer
Q 18 – Slope of a velocity-time graph gives
(a) the distance
(b) the displacement
(c) the acceleration
(d) the speed
(c) the acceleration
physics mcq questions class 9 motion with answers
Q 19 – Which of the following is a correct measure of velocity?
(a) 30 s
(b) 30 m/s
(c) 30 South
(d) 30 m/s, South
(d) 30 m/s, South
Q 20 – In which of the following cases of motions, the distance moved and the magnitude of displacement are equal?
(a) If the car is moving on a straight road
(b) If the car is moving in a Circular path
(c) The pendulum is moving to and fro
(d) The earth is revolving around the sun.
(a) If the car is moving on a straight road
Q 21. (180°) plane angle is equal to
(a) π/2 radian
(b) π radian
(c) 2π radian
(d) none of these
(b) π radian
Q 22 – The velocity-time graph of an object is given below. The object has
(a) Uniform velocity
(b) Uniform speed
(d) Variable acceleration
(c) Uniform retardation
Q 23. 1 km/ h = ________ m/s
(a) 3/50
(b) 18/5
(c) 50/3
(d) 5/18
(d) 5/18
Q 24 – A body is projected vertically upward from the ground. Taking vertical upward direction as positive and point of projection as origin, the sign of displacement of the body from the origin when it is at height h during the upward and downward journey will be
(a) Positive, positive
(b) Positive, negative
(c) Negative, negative
(d) Negative, positive
(a) Positive, positive
Q 25 – The speed at any instant of time is known as
(a) velocity
(b) given speed
(c) average speed
(d) instantaneous speed
(d) instantaneous speed
Motion For Class 9 Physics
Q 26 – According to the given velocity-time graph, the object
(a) is moving with uniform velocity
(b) has some initial velocity
(d) is at rest
(b) has some initial velocity
Q 27 – A racing car has a uniform acceleration of 6 m/s2. In 10s it will cover:
(a) 300m
(b) 100m
(c) 200m
(d) 350m
(a) 300m
Q 28 – The equations of motion can be derived by using:
(a) Distance – time graph
(b) Velocity – time graph for non-uniform acceleration
(c) Displacement time graph
(d) Velocity – time graph for uniform acceleration
(d) Velocity – time graph for uniform acceleration
Q 29 – The ratio of speed to the magnitude of velocity when the body is moving in one direction is
(a) Less than one
(b) Greater than one
(c) Equal to one
(d) Greater than or equal to one
(c) Equal to one
Q 30 – A body performs an accelerated motion, with uniform speed. The motion of the body is
(a) Linear
(b) Circular
(c) Parabolic
(d) Irregular
(b) Circular
Q 31 – Which of the following situations is possible?
(a) An object can have acceleration, but constant velocity.
(b) The velocity of an object may be zero but acceleration is not zero.
(c) Distance and the magnitude of displacement are equal in a circular motion.
(d) Average speed and the magnitude of average velocity are always equal in a circular motion.
(b) The velocity of an object may be zero but acceleration is not zero.
Q 32 – If car A is at 40 km/h and car B is at 10 km/h in the opposite direction, what is the velocity of car A relative to car B?
(a) 40 km/h
(b) 50 km/h
(c) 10 km/h
(d) 30 km/h
(b) 50 km/h
Q 33 – Which of the following graphs is not possible?
(b)
Q 34 – For a body performing motion with uniform speed, the distance-time graph is:
(a) Straight line parallel to the y-axis
(b) Straight line inclined to the time axis
(c) Straight line parallel to the x-axis
(d) Curved line
(b) Straight line inclined to the time axis
Q 35 – Suppose a boy is enjoying a ride on a merry-go-round which is moving at a constant speed of 10 m/s. It implies that the boy is:
(a) At rest
(b) Moving with no acceleration
(c) In accelerated motion
(d) Moving with uniform velocity
(c) In accelerated motion
Q 36 – Fill in the blanks:
- A body moving in a straight line has a uniform motion if it travels _______distance in _________ intervals of time.
- Velocity is defined as _____________ per unit time.
- Speed is scalar quantity and velocity is _________ quantity.
- If speed of a body is continuously decreasing, the body is said to _________.
- A physical quantity that has magnitude as well as __________ is called vector quantity.
1. equal, equal
2. displacement
3. Vector
4. retarding
5. direction
Q 37 – A particle is moving in a circular path of radius r.
The displacement after half a circle would be:
(a) Zero
(b) πr
(c) 2r
(d) 2πr
(c) 2r
Q 38 – Which of the following statement is correct regarding velocity and speed of a moving body?
(a) Velocity of a moving body is always higher than its speed
(b) Speed of a moving body is always higher than its velocity
(c) Speed of a moving body is its velocity in a given direction
(d) Velocity of a moving body is its speed in a given direction
(d) Velocity of a moving body is its speed in a given direction
Q 39 – The speed-time graph of a car is given here. Using the data in the graph calculate the total distance covered by the car.
(a) 1250 m
(b) 875 m
(c) 1500 m
(d) 870 m
(b) 875 m
Q 40 – For a body performing motion with uniform speed, the distance-time graph is:
(a) Straight line parallel to the y-axis
(b) Straight line inclined to the time axis
(c) Straight line parallel to the x-axis
(d) Curved line
(b) Straight line inclined to the time axis