Force and Motion Review (2024)

Front

What is the normal force?

Back

The normal force is the support force exerted upon an object that is in contact with another stable object, acting perpendicular to the surface.

Front

What happens when two magnets repel each other?

Back

When two magnets repel each other, they push away from each other due to like poles facing each other (e.g., north-north or south-south).

Front

What is a reaction force?

Back

A reaction force is the force that occurs in response to an action force, as described by Newton's third law of motion.

Front

What is the normal force acting on a cup resting on a table?

Back

The table pushes up on the cup with a force equal to the weight of the cup, which is the normal force.

Front

What is a non-contact force?

Back

A non-contact force is a force that acts on an object without physical contact, such as gravitational force or magnetic force.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies toward each other, commonly experienced as the force that pulls objects toward the Earth.

Front

What is friction?

Back

Friction is the force that opposes the motion of an object when it is in contact with another surface.

Front

What is applied force?

Back

Applied force is a force that is applied to an object by a person or another object.

Front

What is the difference between contact and non-contact forces?

Back

Contact forces require physical touch between objects, while non-contact forces act at a distance without direct contact.

Front

What is an example of an action-reaction pair?

Back

When a tennis ball hits a wall (action), the wall pushes back on the tennis ball (reaction).