Force and Motion Key Terms

Front

What does it mean to infer?

Back

To reach a conclusion with evidence and reasoning.

Front

What is a force?

Back

A push or a pull that might change the motion of an object.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Front

What does it mean to exert a force?

Back

To apply a force.

Tags

NGSS.MS-PS2-1

Front

What is a collision?

Back

The moment when two objects hit each other.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-5

Front

What do green arrows represent in a force diagram?

Back

A friction force.

Front

What is motion?

Back

The change in position of an object over time.

Tags

NGSS.MS-PS3-1

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

What is mass?

Back

The amount of matter in an object, usually measured in kilograms.

Front

What is acceleration?

Back

The rate of change of velocity of an object.

Front

What is velocity?

Back

The speed of an object in a specific direction.