Torque C

Within the human body, which of these uses levers and torque to function?

• Arms

• Legs

• Head and neck

• All of them

Answer explanation

Torque = Force x Torque Arm Length

Torque = N x m

It is possible that 5 N of force can produce more torque than 25 N of force

• True

• False

• This makes no sense at all

Answer explanation

Torque = Force x Torque Arm Length

The 5 N force can produce more torque than a 25N force by having more than 5x the torque arm length.

Which hammer will produce more torque to pull a nail? (assume the same force applied)

• The longer hammer

• The shorter hammer

• They are the same

Answer explanation

The longer hammer handle is a longer torque arm.

A car's transmission is designed to take the torque and speed from an engine and adjust them to deliver the torque and speed to the wheels

• That is TRUE

• That is FALSE

Answer explanation

Did the rope produce a longer torque arm? Nope

Tags

NGSS.MS-PS2-2

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

• The force needed gets larger

• The force needed gets smaller

• The force needed doesn't change

Answer explanation

The load ends up with a shorter torque arm so it results in less torque resisting the effort force and torque. It is easier to lift the load - less effort force needed.

Tags

NGSS.MS-PS2-2

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

• The force needed gets larger

• The force needed gets smaller

• The force needed doesn't change

Answer explanation

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

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

• The force needed gets larger

• The force needed gets smaller

• The force needed doesn't change

Answer explanation

The load ends up with a longer torque arm so it results in more resistance (more torque) to what the effort force is trying to do.

Tags

NGSS.MS-PS2-2

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

• The force needed gets larger

• The force needed gets smaller

• The force needed doesn't change

Answer explanation

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

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

• The force needed gets larger

• The force needed gets smaller

• The force needed doesn't change

Answer explanation

The move shortens the torque arm length for the load so it produces less torque. This means that less force is needed to produce a balance.

Tags

NGSS.MS-PS2-2

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

• The force needed gets larger

• The force needed gets smaller

• The force needed doesn't change

Answer explanation

The effort force ends up with a longer torque arm so less force is needed to keep the torques balanced.