Changes in Force and Motion

Front

What is net force?

Back

The overall force acting on an object when all the individual forces are combined.

Front

What happens when forces are balanced?

Back

The object does not change its motion; it remains at rest or continues to move at a constant speed.

Front

What is an unbalanced force?

Back

A force that causes an object to change its motion, such as speeding up, slowing down, or changing direction.

Front

What is Newton's 1st Law of Motion?

Back

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

Front

What is Newton's 2nd Law of Motion?

Back

The acceleration of an object depends on the mass of the object and the amount of force applied (F = m x a).

Front

What is Newton's 3rd Law of Motion?

Back

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

Front

What is acceleration?

Back

A change in motion caused by an unbalanced force acting on an object; can include increasing speed, decreasing speed, or changing direction.

Front

What is friction?

Back

A force that opposes motion between two surfaces in contact.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is mass?

Back

The amount of matter in an object, which affects its inertia.