Contact Forces Review - TG

Front

What force does the wall exert on a swimmer when they push against it?

Back

A force equal in magnitude and opposite in direction to the swimmer's push.

Front

If a bear pushes on a tree with 20 N of force and the tree doesn't move, what force is the tree exerting on the bear?

Back

20 N.

Front

What is the normal force?

Back

The force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

What force ultimately slows a roller coaster to a stop?

Back

Friction.

Front

How does the mass of a vehicle affect its kinetic energy as it travels down a track?

Back

Kinetic energy increases as the mass of a moving object increases.

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

Define contact force.

Back

A force that acts at the point of contact between two objects.

Front

What is an example of a frictional force?

Back

The force that opposes the motion of an object sliding on a surface.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic Energy (KE) = 1/2 mv², where m is mass and v is velocity.