Physics 100

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Physics 100

• Sections A1, A2, A3 and A4

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Physics 100

• Chapter 1 Tutorial I

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Physics 100

• Web page
• http//www.kau.edu.sa/iallehyani/

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Using Your Textbook
Test Your Understanding
Example 5.8
Problem-Solving Strategy
CAUTION
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Problem 1.2

• According to the label on a bottle of salad
  dressing, the volume of the contents is 0.473
  liter (L). Using only the conversions
• 1 L 1000 cm3 and 1 in. 2.54,
• express this volume in cubic inches.

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Problem 1.2 Solution

• 1- Conversion equality
• 2- Construct unity factors
• 3- Multiply by the ones

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Problem 1.15

• Estimate the percent error in measuring
• (a) a distance of about 75 cm with a meter stick
• (b) a mass of about 12 g with a chemical balance.
• (c) a time interval of about 6 min with a
  stopwatch.

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Problem 1.15 Solution

• Estimate the percent error in measuring
• (c) a time interval of about 6 min with a
  stopwatch.
• A stopwatch can measure to the tenth of a second
  0.1s
• 6 min 6 min 60 s/1 min 360 s
• Percent error 0.1 / 360 100 2.8x10-2

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Problem 1.26

• How many drops of water are in all ocean on earth?

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Problem 1.8

• While driving in an exotic foreign land you see a
  speed limit sign on a highway that reads 180,000
  furlong per fortnight. How many miles per hour is
  this?
• One furlong is ? mile, and fortnight is 14 days.