Force and Motion

Front

What is the force that attracts objects to the center of the Earth?

Back

Gravity

Front

What is a change in an object's speed or direction called?

Back

Acceleration

Front

What is force?

Back

A push or a pull.

Front

What is a measurement of distance over time?

Back

Speed

Front

What is the measurement of speed and direction of an object?

Back

Velocity

Front

What is friction?

Back

A force that opposes motion between two surfaces in contact.

Front

What is air resistance?

Back

A type of friction that acts on objects as they move through the air.

Front

What is motion?

Back

The change in position of an object over time.

Front

What is the difference between speed and velocity?

Back

Speed is how fast an object is moving, while velocity includes both speed and 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.