SI Units
What is the SI Unit for time?
seconds
What is 700 written in scientific notation?
7 x 10^2
What two measurements to you need to find density?
mass and volume
How many sig figs? 42000000
2
how closely the measurements are to each other & how carefully did you do it
What is the SI Unit for mass?
kilograms
What is .004 written in scientific notation?
4 x 10^-2
What is the density of 200 mL piece of iron that weighs 4g?
0.02 g/mL
How many sig figs in 0.0052?
2
Name the three countries that use the imperial system of measurement
Myanmar, the United States, and Liberia
What is the SI Unit for temp?
Kelvin
Change 908 x 10^-2 to proper scientific notation
9.08 x 10^0
How heavy is an object with a density of 7.8 g/cubic centimeters and a volume of 700 cubic centimeters?
5460 g
How many sig figs in 0.070890
5
What is the percent error of a measured value of 18.6g but an accepted value of 17.3g?
7.5%
Positive 18
23.14 x 10^13 (or 2.314 x 10^12)
How many liters does a substance with a density of 3.4 g/mL and a mass of 3.4g take up?
(0.001 L)
how many sig figs in 600.00?
5
20.4 + 1.322 + 83 ? (Use proper rules)
105
What power of 10 is used for the prefix "pico"
Negative 12
What is (7.45 x 10^-3) - (3.65 x 10^-2)
- 29.05 x 10^-3 (-2.905 x 10^-2)
A rectangular block of copper metal weighs 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of copper?
8.92 g/cubic centimeter
How many sig figs in .670000000
9
67.50 x 2.54 ? (use proper rules)
171