Rotational Kinematics

Rotational Kinematics

10th - 12th Grade

15 Qs

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Rotational Kinematics

Rotational Kinematics

Assessment

Quiz

Physics

10th - 12th Grade

Practice Problem

Medium

Created by

Cynthia Lee

Used 183+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A fan spins with a constant angular speed of 500 radians/second. How long will it take to cover an angle of 2π radians (one revolution)?

0.013 s
0.002 s
76.9 s
6.28 s

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A merry go round starts from rest, and reaches an angular speed of 2 radians/second in 3 seconds. What is its angular acceleration, and through what angle does it sweep in the 3 second time interval? 

α = 3/2 rad/s2,   θ=27/4 rad
α = 2/3 rad/s2, θ=3 rad
α = 2/3 rad/s2, θ=6 rad
α = 6 rad/s2, θ=27 rad

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A flywheel starts from rest, and has an angular acceleration of 4 rad/s2. What will be its angular speed when it has made one revolution? 

5.01 rad/s
50.27 rad/s
2.83 rad/s
7.09 rad/s

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Two bugs ride a turntable which is rotating at a constant rate of 4 rad/s. Bug A is at a radius of 4 cm, while bug B is at a radius of 8 cm. Which of the following is true? 

Bug A has a greater rotational speed. 
Bug B has a greater rotational speed. 
Bug A has a greater speed. 
Bug B has a greater speed. 

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Two bugs ride a turntable which is rotating at a constant rate of 4 rad/s. Bug A is at a radius of 4 cm, while bug B is at a radius of 8 cm. What is the velocity of bug B?  

4 cm/s
32 cm/s
2 cm/s
1 cm/s

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A Ferris wheel, rotating initially at an angular speed of 0.50 rad/s, accelerates over a 7.0-s interval at a rate of 0.040 rad/s2. What is its angular speed after this 7-s interval?

0.2 rad/s
0.3 rad/s
0.46 rad/s
0.78 rad/s

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A gear spins at a rate of 400 revolutions/minute. Which choice is closest to its angular speed in radians/second?

6.67 rad/s

2500 rad/s

41.9 rad/s

20.9 rad/s

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