Transcript of BY: Jorge Quesada Research Elasticity Friction Air Resistance.
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- BY: Jorge Quesada
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- Research Elasticity Friction Air Resistance
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- Hypothesis If I drop a ball from a high point then, it well
bounce higher than if dropped from a lower height.
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- Independent and Dependent Variable Independent Variable The
height The type of ball Dependent Variable Speed at witch the ball
falls
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- Controlled Variable (3) The Type of ball Friction Rate of
fall
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- 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
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- Data
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- 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.
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- Experiment 2 Does wind affect the time it takes a ball to land
on the ground?
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- Hypothesis If my research is correct, I think that wind will
affect the landing time of a ball.
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- Independent and dependent variable Independent variable Speed
of wind (high, low, medium) The ball Dependent variable Speed the
ball falls
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- Controlled variables Air friction Rate of fall Type of
ball
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- 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.
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- Data
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- conclusion It turns out that the speed of the fan did affect
the time it took the ball to hit the ground.
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- Experiment 3 Does height affect the elasticity of a ball?
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- Hypothesis I think it does have a effect on the ball elasticity
in the height the ball is dropped
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- 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
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- Controlled variable Type of ball Elasticity The height the ball
is dropped
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- 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
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- Data
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- Conclusion The elasticity of the ball was affect to the height
the ball was dropped.
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