Moments and Forces Quiz

What is the moment of a force?

• The force applied to an object

• The turning effect produced when a force is exerted on an object

• The weight of the object

• The distance from the pivot

Which of the following is an example of a moment?

• A person walking

• A child on a see-saw

• A ball rolling down a hill

• A car driving on a road

What does the principle of moments state?

• The total clockwise moment equals the total anticlockwise moment for a balanced object

• Forces can only act in one direction

• The moment is always greater than the force

• The total force equals the total mass

What unit is the moment of a force measured in?

• Newton

• Pascal

• Joule

• Newton metre

If a force is applied further from the pivot, what happens to the force required?

• It increases

• It becomes zero

• It decreases

• It remains the same

In the context of a see-saw, what does the clockwise moment refer to?

• The distance from the pivot

• The moment caused by the adult

• The moment caused by the child

• The total weight of the see-saw

What is the effect of applying a force close to the hinge of a door?

• It is easier to open the door

• The door will break

• It is harder to open the door

• The door will not move

What happens when the moments on both sides of a pivot are equal?

• The object will be balanced

• The object will accelerate

• The object will rotate

• The object will fall

What is the turning effect of a force about a pivot called?

• Energy

• Force

• Momentum

• Torque

If a carpenter exerts a force of 22 N using a spanner of length 20 cm, what is the turning effect if the force is applied 5 cm from the end?

• 1.1 N m

• 2.2 N m

• 0.1 N m

• 0.5 N m