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 Week 2 Homework Due Sept 1

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ST_Tracy



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Join date : 2013-06-11

PostSubject: Week 2 Homework Due Sept 1   Wed 26 Aug 2015, 1:23 pm

I apologize for not having this posted sooner. I will normally have homework posted by Tuesday afternoon. 
Thank you for your patience.

Homework Week 2, Due Sept 1

>Read module 1 if you haven't already read it. 
>Do Study Guide on p. 24
>Read over the experiments in module 1 if you haven't read        them.
>Copy the following chart into the front of your notebook or          tape it into your notebook:

Conversion Factors for Physical Science 
1 inch = 2.54 cm
1 mile = 1.609 km
1 cup = 236.588 mL
1 quart = .946 L
1 pound = 453.592 g
2.2046 pounds = 1 kg

If you are having difficulty understanding conversion using the factor-label method, there is a step by step explanation below as well as a couple of practice problems. Let me know if this doesn't help you understand.

Factor-Label Method Step-by- Step
Convert 14 pounds into grams.

1. What do you know? Put that over 1.
 14 lbs.
    1

2. What do you need to know? Multipy that by its conversion factor. (See chart above.)
14 lbs.  x 453.592g
    1            1 lb.
 
3. Now, do the math...
14 lbs.  x 453.592 grams = 6350.288 grams
    1               1 lb.

Let's Try another one...
I need 235 mL of water for a recipe. What is that in cups?
 
1. What do I know? Put it over 1.
235 ml 
   1

2. What do you need to know? Multiply what you know by that.
235 ml  x ____cups =
   1
3. Now, put in the conversion factor from the chart above.
235 mL  x __1__cups =     (make sure you divide this time)
    1          236.6 mL

4. Do the math...
235 mL  x __1__cup =  .993 cups  or about 1 cup 
    1         236.588 mL
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