Tutorial 1

# Tutorial 1 - Phys 1L03 Tutorial session First series...

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1 Phys 1L03 Tutorial session Set 1 First series questions on unit, significant figures, … Winter 2010 1. The prefix micro ( μ ) means a. 10 6 b. 10 –6 c. 10 3 d. 10 –3 2. Both sides of an equation must be equal in a. Numerical value b. Units c. Dimensions d. All of the above 3. Can dimensional analysis tell you whether you have used the correct equation in solving a problem? a. Yes b. No 4. If m/s is divided by s, what is the resulting unit? 5. Use SI unit analysis to show that the equation A = 4 π r 2 is dimensionally correct, where A is the area and r is the radius of a sphere. 6. if x = ½ gt 2 , where x is length and t is time, is dimensionally correct, what are the SI unit of the constant g? 7. Which of the following has the greatest number of significant figures? a. 103.07 b. 124.5 c. 0.09916 d. 5.408 × 10 5 8. In multiplication operation involving the numbers 15437, 201.08, and 408.0 × 10 5 , the result should be rounded to how many significant figures? a. 7 b. 5 c. 4 d. 3 e. 2 9. Express the length 50500 μ m in centimeters and meters to 3 significant figures. 10.

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## This note was uploaded on 02/14/2011 for the course PHYS 1L03 taught by Professor Hughes during the Spring '11 term at McMaster University.

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Tutorial 1 - Phys 1L03 Tutorial session First series...

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