Forces, Friction, and Gravity

Front

What is the force exerted by an object that does not move when a force is applied to it?

Back

The object exerts an equal and opposite force, as described by Newton's Third Law of Motion.

Front

What is the unit of measurement for force?

Back

Newton (N)

Front

What two factors affect the magnitude of the gravitational force between two objects?

Back

Mass and Distance.

Front

What happens to the gravitational force as the mass of an object increases?

Back

The gravitational force increases.

Front

What is terminal velocity?

Back

The constant speed that a freely falling object eventually reaches when the resistance of the medium prevents further acceleration.

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

What are the two main types of friction?

Back

Static friction and kinetic (sliding) friction.

Front

How does increasing the surface area of contact affect friction?

Back

Increasing surface area does not significantly affect friction; it is primarily dependent on the nature of the surfaces and the normal force.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass, calculated as Weight = Mass x Gravitational Acceleration.

Front

What is gravitational acceleration on Earth?

Back

Approximately 9.81 m/s².