Forces & Motion #3 Flashcard Review

Front

What are unbalanced forces?

Back

Forces that do not cancel each other out when acting together on a single object, causing movement.

Front

What is force?

Back

A push or pull on an object.

Front

What force helps a van to slow down and stop?

Back

Friction.

Front

What is a Newton?

Back

A measurement of force.

Front

What does Newton's 1st Law state?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted on by a force.

Front

What are balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in no movement.

Front

What is friction?

Back

A force that opposes motion between two surfaces in contact.

Front

What is gravity?

Back

A force that pulls objects toward each other, such as the Earth pulling us down.

Front

What is motion?

Back

The change in position of an object over time.

Front

What is mass?

Back

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