Miscellaneous
Sig Figs
Scientific Notation
Dimensional Analysis
Measurements
100

Chemistry is the study of this.

Changing of matter

100

How many sig figs are in 120.0

4

100

Put the following into scientific notation:

450,009

4.50009 x 105

100

How many mm are in 12.76 m.

12,760 mm

100

Find the correct measurement with the right number of certain and uncertain digits


21.6 mL

Smallest increment - 1mL

Guess/Uncertain digit - 1/10 mL

200

What a hypothesis versus a law?

Hypothesis - educated guess

Law - a proven mechanism of how a phenomenon works - the "how"

200

How many sig figs 100,000.0

7

200

Put the following into scientific notation.

0.000023

2.3 x 10-5

200

How many grams are in 548.0 mg?

0.548 g

200

Find the measurement with correct number of certain and uncertain digits.


2.33 cm

Smallest increment - 1/10 cm

Guess - 1/100 cm

300

Contrast weight and mass.

Mass - the amount of mater in something

Weight - matter with respect to gravity

300

How many sig figs 4,097,000

4

300

Multiply the following:

(4.2 x 103) x (8.044 x 10-6)

3.4 x 10 -2

300

How many centimeters are in 4.6 feet? 

Hint: 2.54 cm = 1 inch

140 cm

300

Find the following measurement with the correct number of certain and uncertain digits.


3.80 inches

Smallest increment = 1/10 in so my uncertain digit is 1/100

400

Difference between accuracy and precision?

Accuracy - close to a value

Precision - consistent

400

How many sig figs are in 120,000,000

2

400

Add (8.9002 x 107) + (12 x 102)

8.9 x 107

400

How many mega-meters are there in 95,600 cm?

9.56 x 10-4 or 0.000956 mega-meters

400

Find the measurement with correct number of certain and uncertain digits.


21.8 degrees

Smallest increment - 1's

Guess - 1/10

500

Where does the independent and dependent variables go on a graph? Define both variables.

Independent - what's changing - x-axis

Dependent - being measured - y-axis

500

Add 401.2cm and 12cm with correct sig figs.

410 cm

500

Subtract the following:

(9.1 x 107) - (2.33 x 106) - (3.04 x 108)

- 2.2 x 108

500

How many seconds are in a year? Show all work on the board.

31536000 seconds

500

Find the measurement with the correct number of digits.


137.40 g

Smallest know increment - 1/10 g

Guess - 1/100 g

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