1. How Are Speed and Velocity Related?
Physics Topics
How Are Speed and Velocity Related?
Phabulous Physics: Introduction

2. Speed and Velocity
Phabulous Physics: Introduction
total
distance
total
displacement
Average
speed =
Average
velocity =
time
time
Is it possible to move with constant speed but not constant velocity?
Delete answers in red before presentation and fill in with student responses
Yes. (Cruising at 55 mph around a corner  changing direction = changing velocity)
Time =
1 min 18 sec
Start
Finish
= 500 m
500 m
Is it possible to move with constant velocity but not constant speed?
average
speed = = 6 . 4 m 78 s s m
No. (A change in speed would cause a change in velocity.)
average
velocity = = m 78 s s 8

3. Acceleration Positive acceleration means increasing velocity
Phabulous Physics: Introduction
Positive acceleration means increasing velocity
Negative acceleration means decreasing velocity

4. Five Important Equations
Phabulous Physics: Introduction
Variable That’s Missing #1 #2 #3 #4 #5

5. Derivation of Equations 3 & 4
Phabulous Physics: Introduction

6. Derivation of Equation 5
Phabulous Physics: Introduction

7. Graphs Displacement Time Velocity Acceleration
Phabulous Physics: Introduction
Displacement
Time
Velocity
Acceleration
Ask what each graph could represent and pose the Unit Question, Can the motion of any object be predicted?

8. Graphs Displacement Time Velocity Acceleration
Phabulous Physics: Introduction
Displacement
Time
Velocity
Acceleration
Ask what each graph could represent and pose the Unit Question, Can the motion of any object be predicted?

9. Graphs Displacement Time Velocity Acceleration
Phabulous Physics: Introduction
Displacement
Time
Velocity
Acceleration
Ask what each graph could represent and pose the Unit Question, Can the motion of any object be predicted?

10. Graphs Displacement Time Velocity Acceleration
Phabulous Physics: Introduction
Displacement
Time
Velocity
Acceleration
Ask what each graph could represent and pose the Unit Question, Can the motion of any object be predicted?

11. Start Projectile Motion Demo
Phabulous Physics: Introduction
Start Projectile Motion Demo