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Rotational Motion

Authored by Gabrielle Hopkins

Physics

12th Grade

Used 8+ times

Rotational Motion
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8 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 2600 rev/min is equivalent to which of the following?

2600 rad/s 
43.3 rad/s 
273 rad/s
60 rad/s

2.

MULTIPLE CHOICE QUESTION

3 mins • 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/s/s
4.8 rad/s/s
3.1 rad/s/s
1.6 rad/s/s

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s2. What is its angular speed at the instant it goes through an angular displacement of 4.2 rad?

0.025 rad/s
0.11 rad/s
0.46 rad/s
1.2 rad/s

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The relation between linear velocity and angular velocity

r = v⍵

⍵ = vr

v = r⍵

a = v⍵

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The unit of angular velocity is

m/s

m/s²

rad/s

rad/s²

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Centripetal acceleration is directed

directed away from the center of the circle

directed towards the center of the circle

it is perpendicular to the radius at that point

It has no direction

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The time required for one complete revolution is:

torque

frequency

period

rotational kinetic energy

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