Motion, Forces, and Newton's First Law of Motion

Front

What is motion?

Back

Motion is the change in position of an object over time.

Front

What is a force?

Back

A force is a push or pull that can cause an object to accelerate.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What does it mean for an object to have zero acceleration?

Back

It means the object is either at rest or moving at a constant speed in a straight line.

Front

What is friction?

Back

Friction is a force that opposes the motion of one object moving past another.

Front

How does friction affect motion?

Back

Friction slows down or stops the motion of an object.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity.

Front

How is momentum related to Newton's First Law?

Back

Momentum helps explain how objects continue in their state of motion unless acted upon by a force.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its motion.

Front

What is the net force?

Back

The net force is the total force acting on an object after all the forces are combined.