Turning Moment and Seesaw Problems

What is the turning moment of a force?

• The force applied to an object

• The distance from the pivot to the point of force application

• The product of the force and the perpendicular distance from the pivot to the line of action of the force

• The angle between the force and the lever arm

Which of the following factors affect the turning moment of a force?

• Magnitude of the force only

• Distance from the pivot only

• Both magnitude of the force and distance from the pivot

• None of the above

In the equation m = force x distance, what does 'm' represent?

• Mass

• Moment of force

• Magnitude of force

• Distance from the pivot

A force of 20N is applied to a lever arm 0.5m from the pivot. What is the turning moment?

• 10Nm

• 40Nm

• 25Nm

• 5Nm

A force of 50N is applied to a lever arm 1.2m from the pivot. What is the turning moment?

• 60Nm

• 41.67Nm

• 50Nm

• 1.2Nm

A force of 30N produces a turning moment of 90Nm. What is the distance from the pivot?

• 3m

• 270m

• 30m

• 0.33m

A force of 15N is applied to a lever arm to produce a turning moment of 45Nm. What is the distance from the pivot?

• 3m

• 15m

• 45m

• 0.33m

A force of 25N is applied to a lever arm 0.8m from the pivot. What is the turning moment?

• 20Nm

• 31.25Nm

• 25Nm

• 0.8Nm

A force of 40N produces a turning moment of 120Nm. What is the distance from the pivot?

• 3m

• 480m

• 40m

• 0.33m

A force of 10N is applied to a lever arm to produce a turning moment of 30Nm. What is the distance from the pivot?

• 3m

• 10m

• 30m

• 0.33m