Circular Motion MCQ Multiple Choice Questions Answers | Quiz for Practice

Q: 1. A body is moving along a circular path with variable speed, it has

Correct Answer is: Both radical and tangential acceleration

Q: 2. A body is traveling in a circle at a constant speed. It

Correct Answer is: has an inward acceleration

Q: 3. A body of mass m moves in a horizontal circle of radius r at constant speed v for one complete revolution. Which of the following statements is incorrect?

Correct Answer is: The work done by the centripetal force is 2 pi m v 2 .

Q: 5. A car sometimes overturns while taking a turn. When it overturns, it is

Correct Answer is: The inner wheel which leaves the ground first

Q: 6. A car travels in a circle with constant speed. The net force on the car

Correct Answer is: is directed toward the center of the curve.

Q: 7. A communication satellite is in a circular orbit around Earth. If the speed of the satellite is constant, the force acting on the satellite

Correct Answer is: points toward the center of the Earth at all times.

Q: 9. A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle? The motion takes place in a plane. It follows that

Correct Answer is: its motion is circular

Q: 10. A particle is performing a U.C.M. Which is the wrong statement regarding its motion?

Correct Answer is: The acceleration vector is tangential to the circle

Q: 11. A rock attached to a string swings in a vertical circle. At the highest point,

Correct Answer is: two forces act on the rock and their resultant is not zero.

Q: 12. A satellite moving in a circular orbit around Earth and maintaining a constant speed will experience a

Correct Answer is: net gravitational force towards Earth.

Master the fundamentals of Circular Motion with our carefully curated multiple-choice questions (MCQs). Whether you're a student or an exam aspirant, these questions are designed to enhance your understanding and prepare you for success.

About Circular Motion MCQ Questions

Circular Motion is a vital topic in physics, covering concepts such as centripetal force, angular velocity, and centripetal acceleration. Our MCQs delve into these areas, providing a comprehensive understanding of the dynamics involved in objects moving in a circular path.

Why Practice Circular Motion Objective Questions?

Practicing these MCQs offers numerous benefits. They help reinforce your knowledge, improve problem-solving skills, and prepare you for exams and interviews. Regular practice ensures that you are well-versed in the key concepts, making you more confident in your academic and professional pursuits.

Who Should Use These MCQs?

Students preparing for school or college exams
Competitive exam aspirants
Candidates preparing for interviews

Circular Motion MCQ Questions for Practice

1. A body is moving along a circular path with variable speed, it has

A radical acceleration
A tangential acceleration
Zero acceleration
Both radical and tangential acceleration

2. A body is traveling in a circle at a constant speed. It

has a constant velocity
has no acceleration
has an inward acceleration
has an outward radial acceleration

3. A body of mass m moves in a horizontal circle of radius r at constant speed v for one complete revolution. Which of the following statements is incorrect?

The angular velocity of body is directed perpendicular to the plane of circular motion.
The work done by the centripetal force is 2 pi m v².
The change in linear momentum of the body is zero.
The total energy of the body is constant.

4. A car is making a turn at speed v. The radius of the turn is r and the centripetal force on the car is F. If the car rounds the same curve at speed 2v, the required centripetal force is

1/2 F
F
2F
4F

5. A car sometimes overturns while taking a turn. When it overturns, it is

The inner wheel which leaves the ground first
The outer wheel which leaves the ground first
both the wheel leave the ground simultaneously
Either inner wheel or the outer wheel leaves the ground

6. A car travels in a circle with constant speed. The net force on the car

is zero because the car is not accelerating.
is directed forward, in the direction of travel.
is directed toward the center of the curve.
none of the above

7. A communication satellite is in a circular orbit around Earth. If the speed of the satellite is constant, the force acting on the satellite

is zero.
is decreasing.
points toward the center of the Earth at all times.
points in the direction that the satellite is moving.

8. A ladybug rests on the bottom of a tin can that is being whirled horizontally on the end of a string. Since the ladybug, like the can, moves in a circle, there must be a force on it. What exerts this force?

Gravity
The string
There is no force acting on it.
The can

9. A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle? The motion takes place in a plane. It follows that

its velocity is constant
its acceleration is constant
its motion is linear
its motion is circular

10. A particle is performing a U.C.M. Which is the wrong statement regarding its motion?

The velocity vector is tangential to the circle
The acceleration vector is tangential to the circle
The acceleration vector is directed towards the center of the circle
The velocity and acceleration vectors are perpendicular to each other

11. A rock attached to a string swings in a vertical circle. At the highest point,

no forces act on the rock.
only one force acts on the rock.
two forces act on the rock and their resultant is zero.
two forces act on the rock and their resultant is not zero.

12. A satellite moving in a circular orbit around Earth and maintaining a constant speed will experience a

changing gravitational force towards Earth.
net gravitational force towards Earth.
changing acceleration away from Earth.
net acceleration away from Earth.

13. A small car is being driven in a circular path at constant speed on a horizontal surface. What is the direction of the frictional force that keeps the car from skidding as it travels along this path?

opposite the direction of the velocity of the car
in the same direction as the velocity of the car
toward the center of the circle
outward from the center of the circle

14. A stone is tied to one end of a string. Holding the other end, the string is whirled in a horizontal plane with progressively increasing speed. It breaks at some speed because

Gravitational forces of the earth are greater than the tension in the string.
The required centripetal force is greater than the tension sustained by the string.
The required centripetal force is less than the tension in the string.
The centripetal force is greater than the weight of the stone.

15. A tin can whirled on the end of a string moves ina circle because

the can continually pulls on the string.
once the can starts moving, that is its natural tendency.
there is a force on the can pulling it outward.
there is an inward force acting on the can.

16. After closing a deal with a client, Kent leans back in his swivel chair and spins around with a frequency of 0.8 Hz. What is the period of Kents spin?

0.8 s
2 Hz
1.25 s
1 Hz

17. An airplane is taking a turn in a horizontal plane

its remains horizontal
it inclines inward
it inclines outward
its wings become vertical

18. An object moves in a circle with a period of 0.025 hours. What is its frequency in Hz?

90 Hz
263 Hz
0.1 Hz
0.01 Hz

19. Applying a force to an object perpendicular to its direction of motion will cause the object to

change speed but not direction
change direction but not speed
change the magnitude of its acceleration
not change its speed or direction

20. Decreasing the mass of an object on a circular path but keeping its velocity and radius constant

increases the centripetal force on the object
decreases the centripetal force on the object
does not affect the centripetal force on the object
depends on the specific situation

21. Earth rotates and revolves through space. Earth rotates about the ............., which is an..............axis. Earth revolves about the................, which is an..............axis.

sun, external, North/South pole, internal
North/South pole, external, sun, internal
sun, internal, North/South pole, external
North/South pole, internal, sun, external

22. For a particle performing a U.C.M. the acceleration is

constant in direction
constant in magnitude but not in the direction
constant in magnitude and direction
constant in neither magnitude nor in direction

23. If you whirl a tin can on the end of a string and the string suddenly breaks, the can will

fly directly away from you.
fly off, tangent to its circular path.
fly directly toward you.
spiral in toward your hand.

24. In a vertical circle of radius r at what point in its path, a particle has a tension equal to zero?

Highest point
Lowest point
Any point
A horizontal point

25. The centripetal force exerted on stunt motorcyclist Biker Bob while riding on the inner vertical surface of a circular track is

friction.
his weight.
the normal force.
none of the above

26. The clock on Big Ben has a minute hand of length 4.3 m and an hour hand of length 2.7 m. What is the ratio of the centripetal acceleration of a point on the tip of the minute hand to a point on the tip of the hour hand?

1.6
150
230
5700

27. What is the direction of the force that acts on clothes in the spin cycle of a washing machine?

Inward
Down
Outward
Up

28. When particle revolves with uniform speed on a circular path

no force acts on it
no acceleration acts on it
no work is done by it
its velocity is constant

29. Which has greater linear speed, a horse near the outside rail of a merry-go-round or a horse near the inside rail?

The inside horse
The outside horse
Neitherâ€”they both have the same linear speed.

30. Which of the following statements is not true for a stone attached to a string and swung in a uniform vertical circular motion?

The magnitude of resultant force acting on the stone changes depending on the position of the stone in the circle.
The tension in the string is lowest when the stone is at the highest point of the circular motion.
The kinetic energy of the stone is constant throughout the entire circular motion.
The resultant acceleration is always directed towards the centre of the circle.