Unit 2, LC1 Review: Measuring Motion

Front

What does Newton's first law state about an object in motion?

Back

An object in motion will remain in motion unless an unbalanced (outside) force acts on it.

Front

What is the BEST definition of motion?

Back

A change in position.

Front

What is a reference point?

Back

A place or object used for comparison to determine if another object is in motion.

Front

Give an example of a reference point.

Back

A tree can be used as a reference point.

Front

What is acceleration?

Back

Acceleration is a measure of a change in velocity.

Front

True or False: Acceleration can occur when an object speeds up or slows down.

Back

True.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (only magnitude), while velocity is a vector quantity (magnitude and direction).

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its motion.

Front

What happens to an object at rest according to Newton's first law?

Back

An object at rest will remain at rest unless an unbalanced (outside) force acts on it.