Chemistry: Chapter 2
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How do you measure the volume of an irregular shaped object?
You must submerge it
How do you find
Displacement
?:
(3)
Find the initial volume before the object
Find the volume after displacing water
Subtract the final volume from the initial volume
How is mass measured?
By a pan balance
When using a Balance why do you do the Weigh Subtraction method?
You remove the error in the balance
What are the measurements of Temperature?
Fahrenheit
Celsius
Kelvin
The range from freezing point to boiling point on this scale is 32 to 212 degrees
Fahrenheit
The range from freezing point to boiling point on this scale is 0 to 100 degrees
Celsius
Why is the metric system better?
(3)
1 Unit of measurement for each physical quantity
Based on 10's
It's universal
Other countries refuse to buy our products if the product is labeled with...
Metric Units
How close a measurement is to the accepted value
-Correct
Accuracy
How close a series of measurements are to each other
-Repeated
Precision
What is this an example of?:
1 quiz does not define how well you're going to do this year
Accuracy
What is this an example of?:
Getting a good grade on every test shows you're going to do well this year
Precision
What is the purpose of a Significant Figure?
Describes how accurate and precise the tool is
What is the purpose of Scientific Notation?
(2)
To simplify large #'s
To show significant figures
What is the purpose of dimension analysis?
To convert one unit to another
How to multiply/divide numbers?
Multiply/divide and then your answer should look like one of the numbers with the least amount of significant figures
How to add/subtract numbers?
Add/subtract and your answer should look like one of the numbers with the least amount of numbers to the right of the decimal
Card Set Information
Author:
LaurenCamp29
ID:
237712
Filename:
Chemistry: Chapter 2
Updated:
2014-06-14 19:51:38
Tags:
chem quiz jun
Folders:
Junior Chemistry
Description:
add to chapter 1 test
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