1. DO NOW: /18/10
Based upon our data collected from our experiment last week, did the weight, or ‘heaviness’ determine how long it would take an object to fall? What does the data tell you?
Ball
Trial 1
Trial 2
Trial 3
Average:
Little
2.83
2.93
2.80
2.85
Vf= (m/s)
Big
2.90
2.78
2.84
Vf = (m/s)
V=0m/s
V=???

2. This is what your paper should look like…
Name
Date
Class Period
Assignment
LINEAR MOTION
(front)
This is what your paper should look like…

3. LINEAR MOTION (back) SUMMARY:
(You will write a 5-7 sentence summary at the end of the notes)

4. LINEAR MOTION Speed Velocity how fast an object is moving
Any units for distance over time are acceptable
Velocity

5. LINEAR MOTION Speed Velocity how fast an object is moving
Any units for distance over time are acceptable
how fast and in what direction an object is moving
Velocity
If either speed or direction are changing, velocity will be changing

6. LINEAR MOTION Speed Velocity how fast an object is moving
Any units for distance over time are acceptable
how fast and in what direction an object is moving
Velocity
If either speed or direction are changing, velocity will be changing

7. LINEAR MOTION Acceleration the rate at which velocity is changing
If the objects speed, direction, or both changes, the object changes velocity and accelerates

8. LINEAR MOTION Acceleration the rate at which velocity is changing
If the objects speed, direction, or both changes, the object changes velocity and accelerates
The units for acceleration are any combination of units of speed per time

9. LINEAR MOTION Acceleration the rate at which velocity is changing
If the objects speed, direction, or both changes, the object changes velocity and accelerates
The units for acceleration are any combination of units of speed per time

10. LINEAR MOTION Free Fall
Freely falling objects are only affected by the influence of gravity
The acceleration of an object in free fall is about 10m/s2
Free Fall
“g” = acceleration due to gravity
= 9.81 m/s2 or ≈ 10 m/s2

11. LINEAR MOTION
Freely falling objects are only affected by the influence of gravity
The acceleration of an object in free fall is about 10m/s2
Free Fall
“g” = acceleration due to gravity
= 9.81 m/s2 or ≈ 10 m/s2
0 sec
1 sec
2 sec
3 sec
4 sec
5 sec
6 sec

12. LINEAR MOTION Air Resistance Slows down the acceleration of motion
In most cases, air resistance is small enough for an object to be considered “falling freely”.