Rotational K.E.

Rotational K.E.

11th - 12th Grade

10 Qs

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Rotational K.E.

Rotational K.E.

Assessment

Quiz

Physics

11th - 12th Grade

Practice Problem

Medium

NGSS
HS-PS2-1, HS-PS3-1, HS-PS3-2

Standards-aligned

Created by

Hanadi khalil Fatayerji

Used 37+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Because a hollow ball has a higher moment of inertia than a solid ball...

The solid ball rolls faster
The solid ball weighs more.
The solid ball weighs less.
They both accelerate at the same rate.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a ball moves with slipping down a ramp

it goes slower than if it had rolled down
it moves faster than if it had rolled down.
It doesn't make a difference about friction or not friction.
Friction slows it down.

Tags

NGSS.HS-PS2-1

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

In the diagram above, two masses, one with mass m, the other with mass M = 2m are resting on a uniform plank of length L that pivots at its midpoint. If the mass m is at the far end of the plank, how far away from the pivot should the mass M be to balance the plank in a horizontal position shown?

L/2
L/3
L/4
L/6

Tags

NGSS.HS-PS2-1

4.

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 rotational kinetic energy of the cylinder to the rotational kinetic energy of the hoop?

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

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the total kinetic energy of a 3 kg solid disk (I = 1/2mr2) with a diameter of 80 cm rolling at 4 m/s?

12 J

24 J

36 J

48 J

Tags

NGSS.HS-PS3-1

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

You roll a solid sphere of mass m and radius r (I = 2/5mr2) down a ramp from a height of h, if it starts at rest what is its linear speed at the bottom?

√1.4gh)

√2gh)

√3.5gh)

√5gh)

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

7.

MULTIPLE CHOICE QUESTION

30 sec • 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 perpendicular to the plane of the drawing at point P?

A
B
C
D

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