Rotational Motion

Rotational Motion

11th Grade - University

35 Qs

quiz-placeholder

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Rotational Motion

Rotational Motion

Assessment

Quiz

Physics

11th Grade - University

Practice Problem

Hard

NGSS
HS-PS2-1, HS-ETS1-3, HS-PS3-1

+3

Standards-aligned

Created by

Charles Martinez

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35 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

A solid  metal bar is at rest on a horizontal frictionless surface. It is free to rotate about a vertical axis at the left end. The figures show forces of different magnitudes that are exerted on the bar at different locations. In which case does the bar's angular speed about the axis increase at the fastest rate?

A
B
C
D

Tags

NGSS.HS-PS2-1

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Two equal forces do W Joules of work on cylinder (I=1/2mr2) and a hoop (I=mr2) of the same radius and same mass.  What is the ratio of the total kinetic energy of the cylinder to the total kinetic energy of the hoop after this work has been done?

1:1
1:2
2:1
1:4

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A cylinder (I=1/2mr2) and a hoop (I=mr2) of the same radius and same mass are traveling at the same angular velocity (ω).  What is the ratio of the angular momentum of the cylinder to the angular momentum of the hoop?

1:1
1:2
2:1
1:4

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A cylinder (I=1/2mr2) of mass M and radius r rolls with a linear velocity v.  What is its angular momentum?

Mv
Mv/r
Mrv/2
Mrv

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

When a rigid object rotates about a fixed axis, what is true about all the points in the object? 

They all have the same tangential acceleration.
They all have the same angular speed.
They all have the same tangential speed.
They all have the same radial acceleration.

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

The figure shows scale drawings of four objects, each of the same mass and uniform thickness, with the mass distributed uniformly. Which one has the greatest moment of inertia when rotated about an axis through point P?

A
B
C
D

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which has greater linear speed, a horse near the outside rail of a merry-go-round or a horse near the inside rail?

the inside horse
the outside horse
Neither

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