Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree...
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Transcript of Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree...
![Page 1: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/1.jpg)
Free Fall
Objectives1.) define free fall
2.) explain that all falling objects accelerate
3.) agree that all objects fall at the same rate
4.) write the free fall equations
![Page 2: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/2.jpg)
Free Fall
![Page 3: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/3.jpg)
IntroductionFree Fall
• motion caused only by gravity
• all objects fall at the same rate
- works in a vacuum: area with no air
- ignores air resistance
Acceleration Due to Gravity
• is a constant.
• is called g
• is = 10 m/s2 on surface of earth
• is different on the moon, but still constant
![Page 4: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/4.jpg)
Free Fall Equations Key
• vv= vertical velocity (in m/s)
• dv = vertical distance (in meters)
• g = acceleration due to gravity (10 m/s2)• t = time (in seconds)
![Page 5: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/5.jpg)
Vertical Velocity Equation
vv gt
![Page 6: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/6.jpg)
Vertical Distance Equation
2
21 gtdv
![Page 7: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/7.jpg)
Time to Fall Equation
gd
t v2
![Page 8: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/8.jpg)
One more free fall
![Page 9: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/9.jpg)
Worksheet A Free Fall Equations
![Page 10: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/10.jpg)
1.) How fast will a ball be traveling if it falls for 5 seconds?
• Data
• Equation• Math• Answer
• t = 5 seconds
g = 10 m/s2
• vv = gt
• vv = 10(5)
• vv = 50 m/s
![Page 11: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/11.jpg)
2. An apple falls out of a tree and takes 1.75 seconds to strike the ground. How high was the
apple from the ground?
• Data
• Equation• Math
• Answer
• t = 1.75 seconds
g = 10 m/s2
• dv = 0.5gt2
• dv = 0.5(10)(1.75)2
dv = 0.5(10)(3.06)
dv = 0.5(30.6)
• dv = 15.3 m
![Page 12: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/12.jpg)
3. A plane drops a C.A.R.E. package to some needy people in the jungle from a height of 1000 m. How long will it take the package to strike the ground?
• Data
• Equation• Math
• Answer
• dv = 1000 m
g = 10 m/s2
• t = √2dv/g
• t = √2(1000)/10
t = √2000/10
t = √200• t = 14.1 seconds
![Page 13: Free Fall Objectives 1.) define free fall 2.) explain that all falling objects accelerate 3.) agree that all objects fall at the same rate 4.) write the.](https://reader034.fdocuments.in/reader034/viewer/2022051000/56649dd45503460f94acca7a/html5/thumbnails/13.jpg)
Free Fall Equations
Vertical Velocity
Steps
1. Multiply g times time
Vertical Distance
Steps
1. Square time (multiply by itself)
2. Multiply by g
3. Multiply by 0.5
Time to Fall
Steps
1. multiply dv times 2
2. divide by g
3. Press =
4. Press the square root button
2 vdtg
dv 0.5gt2
vv gt
Key: vv= vertical velocity (in m/s)dv = vertical distance (in meters)
g = acceleration due to gravity (10 m/s2)t = time (in seconds)