Newton's Laws

Front

What is the force that opposes motion between two surfaces in contact with each other?

Back

Friction

Front

What do we call two equal forces acting in opposite directions on an object?

Back

Balanced force

Front

What is a Newton a unit of?

Back

Force

Front

What happens when an unbalanced force acts on an object?

Back

It changes the motion of the object.

Front

What factors increase gravity?

Back

Greater mass and shorter distance.

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 is Newton's Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What is Newton's Third Law of Motion?

Back

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

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the role of friction in motion?

Back

Friction opposes the motion of objects and can cause them to slow down or stop.