period 4 - Forces Review

Front

What is the Law of Inertia?

Back

The Law of Inertia states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by a net external force.

Front

What is Newton's Third Law of Motion?

Back

Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, which pulls them toward each other.

Front

What is air resistance?

Back

Air resistance is a type of friction that acts against the motion of an object moving through the air.

Front

What happens to the forces acting on an object in free fall?

Back

In free fall, the only force acting on the object is gravitational force.

Front

What is the relationship between action and reaction forces?

Back

Action and reaction forces are equal in magnitude and opposite in direction, acting on different objects.

Front

What is friction?

Back

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

Front

What is the effect of mass on gravitational force?

Back

The gravitational force between two objects increases with the mass of the objects and decreases with the square of the distance between them.

Front

What is the role of a net force?

Back

The net force is the overall force acting on an object, determining its acceleration according to Newton's second law.

Front

What is the difference between static and kinetic friction?

Back

Static friction acts on an object at rest, preventing it from moving, while kinetic friction acts on an object in motion.