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Rolling a Car down a Ramp Investigation
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PLANNING
When planning my experiment, I will need to take into considerationthe following points:
– Fair testing
– Equipment
– How many results I will take
– What range of variables I will experiment with
I will be investigating, by varying the height the summit of the rampis raised off the ground, if the average speed increases or decreases.
Method======
I have decided to produce a step-by-step guide for each experimentjust to ensure that when we actually come to conducting the practicalwork, it runs flawlessly. This will also help us conduct fairer tests,as we will be following the same set of steps each time we collect aresult.
1. Set out equipment as shown in the diagram
2. Ensure the height at the start line (the summit of the ramp) is10cm using the metre stick
3. Ensure there are no extra weights attached to the trolley
4. Hold the trolley with its front touching the start line
5. Simultaneously start the stop clock and release the trolley (becareful not to push it or exert any extra force on it)
6. Stop the clock when the front of the trolley reaches the finishline
7. Record the time taken for the trolley to reach the finish, next tothe relevant height, in a table
8. Repeat from step 4 twice more so you end up with three results forthe same height then continue onto step 9
9. Add all these results together and divide the answer by three toobtain the average.
10. Record this average in the table
11. By placing more books underneath the raised end of the ramp,increase the height at the summit by 10cm. Use the metre stick tocheck
12. Repeat from step 4 until you have obtained results for height from10cm through to 25cmFair Test———
