Rotational Equilibrium

Rotational Equilibrium

12th Grade

10 Qs

quiz-placeholder

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Rotational Equilibrium

Rotational Equilibrium

Assessment

Quiz

Physics

12th Grade

Easy

Created by

hans ability

Used 19+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 

Torque can be described as

the ratio of mass to angular acceleration

None of the other answer

the ratio of moment of inertial to angular acceleration

how effectively a force causes a rotation

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 

How is torque calculated using the moment arm?

τ = Fr

τ = F/r

τ = r/F

τ = F + r

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The lever arm is the ________ distance from the axis of rotation to the point where the force is exerted.

perpendicular

angular

displaced

none of these

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The moment of a 50 N force 20 cm away from the pivot point will be.

10 Nm

500 Nm

20 Nm

15 Nm

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt


Suppose a doorknob is placed at the center of a door. Compared with a door whose knob is located at the edge, what amount of force must be applied to this door to produce the torque needed to open it?

Four times as much

1/4 as much

1/2 as much

Twice as much

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt


A thin, 1 m-long rod has a 200 g object attached to the left end and a 300 g object attached to the right end. If the pivot point is in the middle of the rod, the object

Note: with negligible mass for the rod

will rotate clockwise

will be in static rotational equilibrium

is balanced

will rotate counter clockwise

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The easiest way to open a heavy door  is by applying the force

At the edge of the door far from the hinges

At the top of the door

Near the hinges

In the middle of the door

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