Front

What is acceleration?

Back

Any change in the speed or direction of an object.

Tags

NGSS.MS-PS2-2

Front

What happens if an unbalanced force acts on a moving ball?

Back

The ball will accelerate in the direction of the force.

Tags

NGSS.MS-PS2-2

Front

What is speed?

Back

Speed is the distance something travels in a set amount of time.

Tags

NGSS.MS-PS3-1

Front

What is friction?

Back

A force that opposes the motion of objects that touch as they move past each other.

Front

If a man and a ball travel 90 m in 9 seconds, what is their average speed?

Back

10 m/s.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is a force?

Back

A push or pull on an object that can cause it to change its velocity.

Tags

NGSS.MS-PS2-2

Front

What is the difference between mass and weight?

Back

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

Front

What is inertia?

Back

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

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 an unbalanced force.