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

Author

LaurenCamp29

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Card Set

Chemistry: Chapter 2

Description

add to chapter 1 test

Updated

2014-06-14T19:51:38Z

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