Free Printable Circular Motion Revision

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Circular Motion Revision

Total questions: 19

Worksheet time: 19mins

Name

Class

Date

Centripetal acceleration always points

in the direction of the object's motion

in the opposite direction of the object's motion

towards the center of the circle

towards the outside of the circle

What is the direction of the velocity at point B, if the ball is revolving clockwise?

right

down

left

If the radius of the string is 0.3 meters long and the stopper makes 5 revolutions per second, what is the speed of the stopper? (Hint: C=2πr)

9.4 m/s

6.8 m/s

11.7 m/s

3.5 m/s

What's the centripetal acceleration of an object traveling 2.3 m/s around a circle of diameter 0.6 m?

5 m/s²

17.63 m/s²

10 m/s²

8.81 m/s²

The drum of a washing machine rotates 1800 times in 3 minutes. What is the period?

0.1 s

0.2 s

0.3 s

0.5 s

A 10kg car travels at a constant speed of 20.0 m/s around a horizontal circular track. Which diagram correctly represent the direction of the car's velocity (v) and the direction of the centripetal force (Fc) acting on the car at a particular moment?

The time taken for one complete circuit is called the...

Period

Frequency

Angular velocity

The velocity is always _____ to the line of a circle.

outwards

towards the center

tangent

faster

What is the acceleration of a sock in the dryer that is 0.5 m in diameter if the sock makes one loop every second?

9.87 m/s²

2.67 m/s

1.57 m/s²

3.14 m/s²

10.

One radian is equal to...

the angle subtended at the centre of a circle by an arc equal in length to the radius.

the angle subtended at the centre of a circle by an arc equal in length to the diameter.

the angle subtended at the centre of a circle by an arc equal in length to the circumference.

11.

Describe the motion of a car making a u-turn using the words velocity, acceleration, and force.

The car has a constant velocity with no net force or acceleration.

The car has a constant velocity. Acceleration and force are directed towards the center of the turn.

The cars velocity is constantly changing because the direction is changing despite the speed staying constant. The acceleration and force are both directed to the center of the turn.

Not enough information is given.

12.

A 55 kg runner runs in a circular path whose radius is 18.0 m. The player covers half of a full circle in 6.3 seconds. What is the speed of the runner?

4.49 m/s

9.19 m/s

8.98 m/s

17.95 m/s

13.

Where is the net force when the rollercoaster is at the top of the loop?

Towards the sky

Towards the Right

Towards the left

Towards the ground

14.

Which of the following definitions is correct?

Angular displacement is the rate of change of velocity.

Angular displacement is the rate of change of angular velocity.

Angular velocity is the rate of change of displacement.

Angular velocity is the rate of change of angular displacement.

15.

Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.

10 N

20 N

30 N

40 N

16.

In uniform circular motion, the magnitude of the _______________________of an object is constant but the __________ is continually changing.

speed, acceleration

speed, direction

acceleration, speed

acceleration, velocity

17.

The _______________________ supplies the centripetal force requirement for the car to move in a horizontal circle. Without it, the car would turn its wheels but would not move in a circle (as is the case on an icy surface).

friction force

normal force

applied force

18.