Front

What is the force that acts perpendicular to a surface to support the weight of an object resting on it?

Back

Normal force

Front

What type of force opposes the relative motion of two surfaces in contact?

Back

Friction

Front

What is the force that attracts two bodies towards each other due to their mass?

Back

Gravity

Front

What is the term for a force that is applied to an object by a person or another object?

Back

Applied force

Front

What is a force that requires physical contact to be exerted?

Back

Contact force

Front

What is the difference between contact forces and forces at a distance?

Back

Contact forces require physical touch, while forces at a distance act without direct contact.

Front

What is an example of a contact force?

Back

Friction, tension, normal force, and applied force are all examples of contact forces.

Front

What is the role of normal force in everyday situations?

Back

Normal force prevents objects from falling through surfaces, such as a person sitting on a chair.

Front

How does gravity affect objects on Earth?

Back

Gravity pulls objects towards the center of the Earth, giving them weight.

Front

What happens to the normal force when an object is on an inclined plane?

Back

The normal force decreases as the angle of the incline increases.