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Unit 5 Rotational Motion Review

Authored by Kai Goodwiler

Physics

11th - 12th Grade

NGSS covered

Used 3+ times

Unit 5 Rotational Motion Review
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16 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Horses with the greatest linear speed on a merry-go-round are located

Near the center

Near the outside

anywhere, because they all move at the same speed.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Compared with a force, a torque involves

rotation

leverage

distance from an axis of rotation

all the above

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Where on Earth would be the greatest rotational speed?

the north pole

Winnipeg, Canada

Sioux Falls, South Dakota

Miami, Florida

All locations on Earth have the same rotational speed

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The Fc of a 120 kg tube with a centripetal acceleration of 6.4 m/s2 is

18.8 N

231 N

768 N

1,263 N

5.

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

6.

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

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

What happens to his rotational inertia when a figure skater brings in his arms?

Increase his rotational inertia
Decrease his rotational inertia
has no affect

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