Torque

Front

The easiest way to open a heavy door is by applying the force: At the edge of the door far from the hinges.

Back

At the edge of the door far from the hinges

Front

What is the Unit for Torque? Options: Nm or ft-lbs. or in-lbs., N or lbs., W or G, J or KJ

Back

Nm or ft-lbs. or in-lbs.

Front

Torque is the product of a force exerted on an object times the lever arm.

Back

True

Front

Does a bridge anchored resting on two pillars have any torque?

Back

Yes, but it is at equilibrium.

Front

Which applied force has the most Torque? Options: F₁, F₃, F₄, F₅

Back

F₄

Front

The easiest way to open a heavy door is by applying the force: Near the hinges, In the middle of the door, At the edge of the door far from the hinges, At the top of the door

Back

At the edge of the door far from the hinges

Front

Assuming the same amount of force is applied, which will produce more torque to loosen the lug nut?

Back

B

Answer explanation

B has a longer torque arm.

Front

Will the torque be increased by using the rope?

Back

No

Answer explanation

Did the rope produce a longer torque arm? Nope

Front

With the lever shown, what would happen to the force needed if the load was moved closer to the pivot?

Back

The force needed decreases

Answer explanation

The load ends up with a shorter torque arm so it results in less resistance to the

Front

With the lever shown, what would happen to the force needed if the effort force was moved closer to the pivot?

Back

The force needed increases

Answer explanation

The effort force ends up with a shorter torque arm so more force is needed to give enough torque.