Hypothesis If I drop a ball from a high point then, it well
bounce higher than if dropped from a lower height.
Slide 5
Independent and Dependent Variable Independent Variable The
height The type of ball Dependent Variable Speed at witch the ball
falls
Slide 6
Controlled Variable (3) The Type of ball Friction Rate of
fall
Slide 7
Materials and Procedures Materials Foam balls Timer (phone)
Ladder Pen and Paper Procedure Position a ladder at the site of the
experiment. Drop a ball three times (one at a time) from a height
of 5ft, record rate of fall. Drop a ball three times (one at a
time) from a height of 8ft, record rate of fall. compare
results
Slide 8
Data
Slide 9
Conclusion It turn out that my hypothesis was indeed correct,
that the higher the ball fell the more time it took for it to
land.
Slide 10
Experiment 2 Does wind affect the time it takes a ball to land
on the ground?
Slide 11
Hypothesis If my research is correct, I think that wind will
affect the landing time of a ball.
Slide 12
Independent and dependent variable Independent variable Speed
of wind (high, low, medium) The ball Dependent variable Speed the
ball falls
Slide 13
Controlled variables Air friction Rate of fall Type of
ball
Slide 14
Materials and procedures Materials Ball fan Procedures Place a
fan in the mid point of the balls falling distance. Drop ball from
6 ft on low(fan speeds), then medium, and high. Repeat 3 times.
Record time of fall and average.
Slide 15
Data
Slide 16
conclusion It turns out that the speed of the fan did affect
the time it took the ball to hit the ground.
Slide 17
Experiment 3 Does height affect the elasticity of a ball?
Slide 18
Hypothesis I think it does have a effect on the ball elasticity
in the height the ball is dropped
Slide 19
Independent and dependent variable Independent variable Foam
ball The height the ball is dropped from Dependent variable The
height the ball jumps back up in inches
Slide 20
Controlled variable Type of ball Elasticity The height the ball
is dropped
Slide 21
Materials and procedures Materials Foam ball Measuring tape
Procedures One person stands in place Ball is dropped from 3, 4 and
5 feet high Record bounce distance of the ball in inches
Slide 22
Data
Slide 23
Conclusion The elasticity of the ball was affect to the height
the ball was dropped.
