Metric System, Measurement, and Sig-Figs

SI Units

100

What is the SI unit for length or distance? What is the abbreviation?

meter m

200

What is the SI unit for temperature? What is the abbreviation?

Celsius C

300

What is the SI unit for time? What is the abbreviation?

seconds s

400

What is the SI unit for mass? What is the abbreviation?

grams g

500

What is the SI base unit for Volume? And what is the abbreviation?

Liters L

Sig-Fig Rules

100

All non-zero numbers are... significant or not significant?

significant

200

All zeros to the left of the _________________ are NOT significant.

first non-zero number

300

Zeros to the right of the last nonzero number are only significant IF there is a ___________ anywhere in the number.

decimal

400

Zeros in-between two other non-zero digits are: Significant/Insignificant?

Significant

500

In addition and subtraction, how do we determine how to round our answer?

Use the same number of decimal places as the number with the FEWEST decimal places.

Counting Sig-Figs

100

How many sig-figs in 78091.0?

6

200

How many sig-figs in 0.002?

1

300

How many sig-figs in 0.0009400?

4

400

How many sig-figs in the number : 0035.050700?

8

500

Which of the following has the most significant figures? A: 10,000,000,000,000 B: 5.65 x 10^3 C: 0.000010

B: 5.65 x 10^3 has 3 sig figs

Metric Prefixes/Conversions

100

What is BOTH the prefix AND the abbreviation for x10^3?

kilo k

200

How many meters are in 1 kilometer?

1000 m = 1 km

300

What is the power (in scientific notation) for mili?

x10^-3

400

If an object has a mass of 230 mg, what is its mass in grams?

230 mg = 0.230 g

500

Which of the following prefixes is the largest unit? A: mili- B: centi- C: kilo- D: hecto-

C: kilo

graphing

100

Independent variable is plotted on _________ axis

x - axis

200

dependent variable is plotted on _______ axis.

Y axis

300

What is independent variable?

variable that is changed by experimenter.

400

What is dependent variable?

Variable that gets changed or modified due to independent variable.

500

What are three types of graphs?

pie graph , Line graph and bar graph.