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# How does the slope of a ramp affect the rate at which a ball

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## zahaara younis

on 2 May 2014

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#### Transcript of How does the slope of a ramp affect the rate at which a ball

Discussion
Variables
conclusion
The method

Variables:
The increasing of the angle will make the speed of the ball travel faster due to gravity
Dependent variables-time
Independent variables - angle of the textbook(ramp)
Controlled variables - distance, ball, accurate and same stopwatch, protractor, measuring tape/ruler, surface and the same person
Materials:
PLATFORMS
Social
SOCIAL
SEO
CMS
1. gather all materials and equipments
2. set up equipment/materials as shown in the diagram:

textbooks(ramp)
How does the slope of a ramp affect the rate at which a ball rolls down it?
HYPOTHESIS
Stopwatch
measuring tape/ruler
protractor
textbooks(ramp)
ball
(2 people)

METHOD
ball
3. Use the protractor to measure the angle wanted
4. Make the ball roll down the ramp with the chosen angle
5. Using the stopwatch, find the speed by S= D/T(speed= distance over time)
6. Add an extra textbook when wanting to make the height of the ramp larger/increasing angle
7. Record the information in the table below

8. Repeat 3 times
results
p
stopwatch
measuring tape/ruler
protractor
calculations:
2 textbooks= 62.5
4 textbooks= 65.2
6 textbooks= 81.5
8 textbooks= 105.6
The slope of the ramp affects the rate at which the ball rolls down it as the more textbooks stacked the faster it rolls down and for the improvement of this experiment i could have performed this on a even surface for accurate results
As much as textbooks I added, the faster the ball rolled down the ramp due to gravity pushing it down which resulted in the ball rolling down in the increasing height of the ramp. The equipment was accurate as I was using a digital stopwatch which was precise, I was using a ruler not estimating and I used the same ball throughout the experiment. The dependent variable was the time; so when I let the ball roll down the textbook(ramp) I timed it by the stopwatch and stopped it when it landed on the point I wanted, the dependent variable was the angle of the textbook; using the protractor I measured the angle so the ramp would be the same for all the times I repeated it and the controlled variables are the distance, ball, stopwatch and protractor. I repeated the experiment 3 times so it was reliable. My hypothesis was right about 'the increasing of the angle will make the speed of the ball go faster due to gravity.'
THE END
By:Zahaara Mohammed.Younis-Khan
Aim
TO DETERMINE IF THE SLOPE OF THE RAMPS HEIGHT EFFECTS THE WAY THE BALL ROLLS DOWN IT
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