Unit 3 Force and Motion VOCABULARY REVIEW (20 words)

Front

What is friction?

Back

A force that opposes motion between two surfaces that are in contact.

Front

What is rolling friction?

Back

The force that resists one solid rolling on another.

Front

Who discovered the laws of motion?

Back

Sir Isaac Newton.

Front

What is speed?

Back

The distance traveled divided by the time needed to travel that distance, not including direction.

Front

What is momentum?

Back

The quantity of motion of a moving body, measured as a product of its mass and velocity.

Front

What is force?

Back

An interaction that causes an object to change its velocity, direction, or shape.

Front

What is acceleration?

Back

The rate of change of velocity of an object with respect to time.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, proportional to their masses.

Front

What is mass?

Back

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

Front

What is velocity?

Back

The speed of an object in a given direction.