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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