Displacement & Velocity

Motion

One Dimensional Motion

Bell Work

• Complete Problem 1: Page 44

Spi’s and CLE’s• CLE 3231 Inq1

• CLE 3231 Math 1

• SPI 3231.1.1

Problem Solving

Objective:

• Describe Motion

• Calculate Displacement & Velocity

• Create Graphs/Interpret Velocity

How can we describe motion?

• One dimensional motion is the simplest form of motion

• Motion takes place over time

• We need a frame of reference to evaluate motion

What is a Frame of Reference?

• A Point at which you can measure changes in position.

• A system for specifying the precise location of objects in space and time

What is displacement?

• Change in Position

Displacement = Final position – Initial Position

∆X = Xf - Xi

Key Concepts

• Displacement is not always equal to the distance traveled(See Page 42)

• Displacement can be positive or negative

• Demonstration

What is Velocity?

• motion that includes a direction and numerical value

• Average Velocity – displacement /time interval

• Instantaneous Velocity – velocity of an object at some specific point

Average Velocity & Displacement

• Formula

Average Velocity = Change in Position(displacement) change in time(time interval)

Graphical Interpretation

Problem Solving

• Turn to Page 44; Sample Problem A

• Complete Problems 1-5

Homework: Section Review

•Page 47

•Problems; 1 and 6