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What is the unit of measurement for the moment of force?

• Newton (N)

• Joule (J)

• Newton-metre (Nm)

• Pascal (Pa)

How can the moment of a force be calculated according to the formula provided?

• Moment = force applied + perpendicular distance from the pivot

• Moment = force applied / perpendicular distance from the pivot

• Moment = force applied x perpendicular distance from the pivot

• Moment = force applied - perpendicular distance from the pivot

What is an example of a force multiplier according to the text?

• A short spanner

• A screwdriver

• A long spanner

• A hammer

What does the moment of force depend on?

• The length of the spanner only

• The force applied only

• Both the force applied and the distance from the pivot

• The weight of the bolt

Why is it easier to turn a bolt with a long spanner compared to a short spanner?

• Because a long spanner is heavier

• Because a long spanner is made of stronger material

• Because more torque can be applied with less effort

• Because a long spanner has a better grip

What is the centre of gravity of an object?

• The highest point of an object

• The imaginary point where all of the weight of the object is concentrated

• The bottommost point of an object

• The point where an object touches the ground

Why is the concept of centre of gravity especially important?

• It is important for determining the color of an object

• It is important when designing electronic circuits

• It is important when designing large structures, such as multi-storey buildings and bridges

• It is only important in the study of outer space

What is another term for the centre of gravity?

• Centre of mass

• Centre of volume

• Centre of density

• Centre of pressure

In symmetrically shaped objects, where does the centre of gravity coincide?

• With the geometric edge

• With the geometric centre

• With the highest point

• With the base of the object

Where may the centre of gravity be located in irregular (asymmetrical) shaped objects?

• Always at the geometric centre of the object

• Some distance away from the centre of the object

• At one of the edges of the object

• Outside the object