Chapter 11

Question 1

Frame of Reference

Answer 1

A system of objects that are not moving with respect to one another.

Question 2

Relative Motion

Answer 2

Movement in relation to a frame of reference.

Question 3

Distance

Answer 3

The length of the path between two points.

Question 4

Vector

Answer 4

A quantity that has a direction associated with it.

Question 5

Speed

Answer 5

The ratio of the distance an object moves to the amount of time the object moves.

Question 6

Average Speed

Answer 6

The total distance traveled divided by the time it takes to travel that distance.

Question 7

Instantaneous Speed

Answer 7

The rate at which an object is moving at a given moment in time.

Question 8

Velocity

Answer 8

The speed and direction an object is moving, measured relative to a reference point.

Question 9

Acceleration

Answer 9

The rate at which velocity changes.

Question 10

Free Fall

Answer 10

The movement of an object toward Earth because of gravity.

Question 11

Constant Acceleration

Answer 11

A steady change in velocity.