Sunday, September 8, 2013

Worksheet Answers and Quiz

For class on 9-6-13
Scribe Author: Pam H.

Today in class we:

  • Checked in and went over the "Practice-Unit Conversions, Dimensional Analysis, Significant Figures, Measurement Capacity" worksheet
  • Picked up the Chapter 1.3-Properties of Substances worksheet
  • Took a quiz

Answers to the homework
  1.  191.6 g, 38,500 g, 7.0x10^2 J, 2.7x10^-2 
  2. 161,000 cm
  3. 0.0568 mi
  4. 8 fluid ounces
  5. Station Number        Instrument                            Reading (Left and Right)
                    1                                Buret                                  7.65 mL          20.90 mL
                    2                          600 mL Beaker                      330 mL            310 mL
                    3                          100 mL Beaker                      41 mL              50 mL
                    4                 10 mL Graduated Cylinder           6.10 mL           4.90 mL
                    5                                Ruler                                 10.95 in           11.60 in 
                    6              Thermometer (Degrees Celsius)      22.0                 21.0
    6.  a) No, the measurements are not the true value.
         b) Yes, all of the measurements are similar to each other.
    7.  14 cm
    8.  Scientific Notation            Standard Notation              Significant Figures
             4.3301x10^-5                      0.000043301                                   5
               2.67x10^5                             267,000                                         3
                5.0x10^3                                5,000.                                          4

    9.  502,000 chromebooks
   10.  YES!


Remember:
  • You will be given time on Monday to finish your quiz if you didn't do so on Friday.  If you already turned it in, you will be able to use that time to look over your answers. 
  • If you missed the quiz Friday, make sure you talk to Mrs. Friedmann about making it up.

The next scribe author is: Georgia A. 

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