
Rotational Motion and Rotational Dynamics
Authored by Lisa Thompson
Science
9th Grade
NGSS covered

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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A special form of reference frame where there is a constant direction but a change in speed
Accelerated Reference Frame
Coriolis Effect
Fixed Reference Frame
Rotational Reference Frame
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s2. What is the time interval required for it to reach a 4.2 rad displacement after starting from rest
1.8 s
2.0 s
16 s
18 s
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A 0.12-m-radius grinding wheel takes 5.5 s to speed up from 2.0 rad/s to 11.0 rad/s. What is the wheel's average angular acceleration?
9.6 rad/s2
4.8 rad/s2
3.1 rad/s2
1.6 rad/s2
4.
MULTIPLE CHOICE QUESTION
1 min • 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
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The rate at which a rotating object spins is called ____.
linear motion
angular velocity
radians
acceleration
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The time taken for one complete circuit is called the...
Period
Frequency
Angular velocity
Tags
NGSS.HS-PS4-1
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