What is the measurement 111.009 mm rounded off to four significant digits?
111.0 mm
100
What is the SI unit for Temperature?
Kelvin
100
How many grams are in 750 dg?
75g
100
What is the formula for density?
D = m/v
200
Express the product of 2.2 mm and 5.00 mm using the correct number of significant digits.
11mm2
200
Which of the following units is NOT an official SI unit?
a. kilogram
b. ampere
c. mole
d. liter
D. Liter
200
How many micrometers are in 0.073cm?
7.3 x 10^2 um or 730 um
200
If a liter of water is cooled from 50C to 20C, what happens to its density?
It will decrease.
300
The expression of 5008 km in scientific notation is ____.
5.008 x 10^3
300
What is the temperature 128 K expressed in degrees Celsius?
-145 oC
300
How many seconds are in a 40.0 hour work week?
1.44 x 10^5 sec
300
What is the density of an object having a mass of 4.5 g and a volume of 29.0 cubic centimeters?
0.16 g/cm3
400
Express the sum of 7.68 m and 5.0 m using the correct number of significant digits.
12.7 m
400
Express 0.06 liters in cubic meters.
0.000 06 m3
400
A 1.00 degree increase on the Celsius scale is equivalent to a 1.80 degree increase on the Fahrenheit scale. If a temperature increases by 48.0C, what is the corresponding temperature increase on the Fahrenheit scale?
86.4 F
400
A cube of a gold-colored metal with a volume of 59 cm3 has a mass of 980 g. The density of pure gold is 19.3 g/cm3. Is the metal pure gold? Explain your answer.
No. The calculated density was 17 g/cm3
500
Distinguish between accuracy and precision.
Accuracy - how close a measurement comes to the actual value
Precision - a measure of how close a series of measurements are to one another
500
Identify the SI base unit for the following measurements:
Length, Mass, Temperature, Time, Volume