Force and Motion Intro.

Front

What is a force?

Back

A force is a PUSH or PULL on an object.

Front

What is the term for forces that are equal and act in opposite directions?

Back

Balanced Forces.

Front

What happens to an object when unbalanced forces act on it?

Back

The object will change its motion.

Front

What is an example of balanced forces?

Back

A book sitting on a shelf.

Front

What is an example of unbalanced forces?

Back

A rocket lifting off the launch pad.

Front

What is friction?

Back

Friction is a force that opposes motion between two surfaces in contact.

Front

What is the effect of gravity on objects?

Back

Gravity pulls objects toward the center of the Earth.

Front

What is motion?

Back

Motion is the change in position of an object over time.

Front

What is speed?

Back

Speed is the distance traveled per unit of time.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object.