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# Making Connections Lab

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on 7 January 2014

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#### Transcript of Making Connections Lab

Hypothesis
Hypothesis: If a person exercises first then they will be able to squeeze a clothespin more times in a minute than a person without exercising.

Materials and Procedures

• A group of people
• Clothespins
• Stopwatch
• Paper
• Pencil
• Chairs
• Calculator
• Give out clothespins to everyone.
• Set the stopwatch for one minute and let the group of people sit on a chair and put their head down.
• After resting, start squeezing the clothespin for a minute. The group of people would each count to themselves on the number of times they squeezed the clothespin.
• When the time is up, the group of people would record their result.
• Repeat steps 2-4 three times.
Be sure to
• Have everyone squeeze the clothespin the same way for every trial
• Have NO breaks in between steps 2-5
• Find the average number of clothespin squeezed for each person using the results from the three trials.
• Take a 5 minute break.
• Have the group of people each run in place for one minute.
• Set the timer for 1 minute and start squeezing.
• Record the result.
• Repeat steps 8 – 10 three times.
Be sure to
• Have everyone squeeze the clothespin the same way for every trial
• Have NO breaks in between steps 8-10
• Find the average number of clothespin squeezed for each person using the results from the three trials.
• Find the group average for the amount of times the clothespin is squeezed with exercising and without exercising.
• Compare the Results.

Data
Data:

Resting
Exercising
Person 1
244
266
Person 2
253
268
Person 3
242
250
Person 4
246
280

Making Connections Lab
Conclusion
Discussion and Conclusion:
Our group hypothesis was correct. If a person exercises first, they will be able to squeeze a clothespin more times in a minute than a person without exercising. The data above proves this conclusion. As shown, all four people squeezed the clothespin at a faster rate after exercising than after resting.
Suggestion for improvement:
Possible sources of error would include members having different motivation in each trial,
members loosing count, and not resting or exercising in the same position or way. When an investigation involve human subjects, it is important to control the variables. Some of the controlled variables would include the gender, age, weight and height. Three additional variables that may have influenced the outcome would be the amount of trials being done, the fitness of each person and members not starting the specific activities at the same time.
Suggestion for further research:
-Does age affect the rate a clothespin is squeezed?
-Does gender affect the rate a clothespin is squeezed?
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