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What is the unit of weight?

Kilogram (kg).

Joule (J).

Meter (m).

Newton (N).

What is the key difference between mass and weight in terms of force?

Mass and weight are always equal.

Mass is constant, while weight is the force due to gravity.

Mass changes with location, but weight remains constant.

Mass is a force that acts on an object, whereas weight is the amount of matter in an object.

What happens to the weight of an object if the value of g is halved?

It is doubled.

It becomes zero.

It is halved.

It remains the same.

Which of the following forces is responsible for an object moving downward in free fall?

Normal force.

Friction.

Tension.

Gravitational force.

What is the role of the normal force when an object is resting on a horizontal surface?

It opposes the motion of the object.

It accelerates the object horizontally.

It provides tension in the object.

It supports the object against gravity, preventing it from falling through the surface.