List the metric prefixes in order from largest to smallest.
kilo
hecto
deca
deci
centi
milli
100
This has how many significant figures:
0.000435
3 signficant figures
100
Express in scientific notation:
0.0005519
5.519 x 10^-4
100
Convert 223 degrees Celcius to Kelvin.
496 Kelvin
200
What does this represent: If the shape changes then the object will slow down.
hypothesis
200
If a tool goes by ones and the object being measured lies in between 3 and 4 cm what would you record for the measurement?
3.5 cm
200
Calculate in correct sig figs:
212.29 cm + 26 cm + 402.921 cm =
641 cm
200
Express in standard notation:
4.221 x 10^7
42,210,000
200
Convert 534.1 g to pounds (2.2lbs = 1 kg) =
1.175 lbs
300
List three things required for a valid graph in chemistry class.
- title
- axes labeled twice
- consistent increments
- clear data points
- use whole graph
- best fit line
300
If a tool goes by tens and the object being measured lies between 20 and 30 what should be your recorded measure?
25 cm
300
Calculate with correct significant figures:
4.031 ft - 0.00820 ft =
4.023 ft
300
Calculate with correct significant figures and leave answer in scientific notation:
12.011 g / 6.022 x 10^23 mL =
1.995 x 10^-23 g/mL
300
Convert 190 miles to meters (1.609km = 1 mile) =
310,000 meters
400
List two differences between an independant and dependant variable.
Independant: what is changed in experiment, on x-axis
Dependant: response to the change, on y-axis
400
You are given the measurement of 12.35 mL. What does this tell you about the tool?
It goes in .1 increments so we know for sure it is 12.3 mL and the last digit is estimated.
BONUS...it is measuring volume
400
Calculate the correct significant figures:
15 km / 280.62 hr =
0.053 km/hr
400
Calculate using correct significant figures and answer in scientific notation:
2.01 x 10^2 km x 3.014 x 10^3 km =
6.06 x 10^5 km^2
400
Convert 300mm to kilometers =
0.0003 km
500
List two differences between a theory and a law.
Theories: Can change, are supported hypotheses, explain why
Law: observed pattern or behavior, describes what
500
When a measuring scale is used properly to the limit of precision, the last significant digit recorded for the measurement is said to be uncertain. Explain.
The last significant digit is always an estimate.
500
Calculate with correct significant figures:
4.031 ft x 0.00820 ft x 373.1 ft
12.3 ft^3
500
Calculate using correct sig figs. Leave your answer in scientific notation.
5.342 x 10^-22 m x 3.20 x 10^12 m =
1.71 x 10^-9 m^2
500
Convert 3.5 miles/hour into yards/second
(1760 yards = 1 mile)