Force and Motion Intro.

Front

What is a force?

Back

A force is a push or pull on an object.

Front

What are balanced forces?

Back

Balanced forces are forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that are not equal and opposite, causing a change in motion.

Front

What is an example of balanced forces in everyday life?

Back

A lamp sitting on a table is an example of balanced forces.

Front

What is an example of unbalanced forces in action?

Back

A rocket lifting off the launch pad is an example of unbalanced forces.

Front

What happens to an object when unbalanced forces act on it?

Back

The object will accelerate in the direction of the net force.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

How does mass affect inertia?

Back

The greater the mass of an object, the greater its inertia.

Front

What is the relationship between force and motion?

Back

A force can cause an object to start moving, stop moving, or change direction.

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.