Chapter 2 Lesson 1 “Distance and Displaceme

nt”

Lee

Kinematics

–

The science of describing the motion of objects using

words, numbers, diagrams, graphs, and equations.

The mathematical quantities which are used to describe the motion of objects can

be divided into two categories.

Scalars

are quantities wh

ich are fully described by a magnitude (or

numerical value) alone.

Vectors

are quantities which are fully described by both a magnitude and a

direction.

I.

Distance and Displacement

Distance

is a

scal

ar quantity

which refers to "how much ground an object has

covered" during its motion.

Displacement

is a

vector quantity

which refers to "how far out

of place an

object is"; it is the object's overall change in position.

1.

What is the distance and displacement of the skier from position A to B?

2.

What is the distance and displacement of the skier from position B to C?

3.

What is the distance and displacement of the skier from position c to D?

1. Distance = 180 m

Displacemnt = 180 m (right)

2. Distance = 140 m

Displacement = 40 m (right)

3. Distan

ce = 100 m

Displacement = 140m (right)

4.

Total Distance = 420 m

Total Displacement = 140 m (right)

Chapter 2 Lesson 1 “Distance and Displaceme

nt”

Lee

4.

What is the distance and displacement of th

e coach from position A to B?

5.

What is the distance and displacement of the coach from position B to C?

6.

What is the distance and displacement of the coach from position C to D?

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