02 March 2009

Gears Investigation

Summarize the investigations and reflect on these activities by leaving a comment to the this post on isklrobotics.blogspot.com:

a) What is the Gear Ratio? Write out the formula to calculate it.

b) Write down the formulas for the two hypotheses.

c) Using GoogleDocs Spreedsheets, create a table like the one below to record your information for each of the tests.

• Make a link in your comment that points to the Spreadsheet you create in GoogleDocs. “Share” your GoogleDoc Spreadsheet with Mr. Inskeep and your fellow classmates.
• Perform condition 1 and record your information. You will not make a predicted speed for this.
• Use your data from condition 1 to make a predicted speed for condition 2 (hypothesis A and
B). Show your calculations for this.
• Perform the tests for condition 2 and record your data.
• Use your data from condition 1 to make a predicted speed for condition 3 (hypothesis A and B). Show your calculations for this.
• Perform the tests for condition 3 and record your data.
d) Make a conclusion about which hypothesis was correct.

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