Bennett Mechanical Test Force and Torque 2

Question 1

A 60 N force is applied to a wrench 0.5 m from the bolt. What torque is produced?

Accepted Answer

30 N·m

Answer

12 N·m

Answer

60 N·m

Answer

120 N·m

Question 2

To loosen a stuck bolt with the least effort, where should you grip the wrench handle?

Accepted Answer

At the far end of the handle

Answer

Close to the bolt head

Answer

In the middle of the handle

Answer

Grip location does not matter

Question 3

Two children sit on a seesaw. A 40 kg child sits 2 m from the pivot. Where must a 20 kg child sit to balance it?

Accepted Answer

4 m from the pivot

Answer

2 m from the pivot

Answer

1 m from the pivot

Answer

8 m from the pivot

Question 4

Which unit measures torque?

Accepted Answer

Newton-meter

Answer

Newton

Answer

Joule per second

Answer

Kilogram

Question 5

A force applied straight through the axis of rotation produces how much torque?

Accepted Answer

Zero

Answer

Maximum

Answer

Equal to the force

Answer

Half the force

Question 6

If you double the length of a lever while keeping the force the same, the torque will:

Accepted Answer

Double

Answer

Stay the same

Answer

Halve

Answer

Quadruple

Question 7

Which describes a force?

Accepted Answer

A push or pull on an object

Answer

A measure of mass

Answer

A spinning motion only

Answer

The speed of an object