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In a free-body diagram, what does the length of an arrow represent?

The mass of the object.

The velocity of the object.

The displacement of the object.

The force acting on the object.

The formula for calculating weight is:

W = m/g.

W = m⋅v.

W = m⋅g.

W = m⋅a.

Which of the following forces is non-contact and acts over a distance?

Gravitational force.

Tension.

Friction.

Applied force.

Which of the following is the main difference between mass and weight?

Weight is constant, while mass varies with location.

Mass is constant, while weight varies with location.

Mass depends on the force of gravity, while weight does not.

Mass is the force exerted by gravity, while weight is the amount of matter in an object.

Which force is responsible for the motion of a car accelerating on a road?

Drag.

Frictional force.

Gravitational force.

Tension.