Which of these is not correct?
100 cm = 1 m
1000 mL = 1L
1 mL = 1 cm^3
10 kg = 1 g
How many significant figures are in the measurement 2103.20 g?
2
4
5
6
How many significant figures in the measurement 0.040200 m?
3
7
How many grams are in 2.5 kg?
0.0025
25
250
2500
Which is the SI (metric) unit for volume?
L
g
K
mg
How many seconds are in a 40-hr workweek?
1.4 x 10^5 s
3600 s
14400 s
3.6 x 10^5 s
Your car gets 35 miles per gallon. How many km per liter does that equal? (1.61km = 1 mile) and (1L = 0.264 gallons)
17 km/L
15 km/L
6.4 km/L
244 km/L
Closeness of a measurement to its true value is a measure of its:
usefulness
reproducability
precision
accuracy
Which sets of measurements is the most precise?
1, 3, 2
10.5, 11.0, 11.5
12, 15, 10
120, 121, 122
What is the volume of 60.0g of ether if its density is 0.70 g/mL?
86 mL
0.012 mL
42 mL
0.024 mL
Some liquid has a density of 1.19 g/mL. What is the mass of 2.0L of this liquid?
2380 g
0.000420 g
0.595 g
2.38 g
A student measures a volume of 25 mL, whereas the correct volume is 23 mL. What is the percent error?
0.087%
8.0%
8.7%
0.92%
What is the area of a piece of metal that measures 4.15 cm x 1.8 cm?
Use significant figures.
7.47 cm^2
7.5 cm
7.5 cm^2
7.47 cm
What is the area of a substance that measures (1.7 x 10^-5 m) x (3.72 x 10^-4 m)
Use proper significant figures
6.324 x 10^-9 m2
6.32 x 10^-9 m2
6.324 x 10^-1 m2
6.3 x 10^-9 m2
How many cm^3 are in 1 m^3 ?
10^3
100
10^6
10^9
A box measures 0.50 m x 0.50 m x 0.50 m. What is the volume (L) of the box?
0.125 L
12.5 L
125 L
1250 L
What is the lowest point on the Kelvin scale?
0
-273
273
Convert 378 Kelvin into Celsius.
651 C
105 C
378 C
Convert 378 Celsius into Kelvin.
Which is the correct scientific notation for 0.000864
86.4 x 10^-5
86.4 x 10^-4
8.64 x 10^-5
8.64 x 10^-4
What is this number, 8.675 x 10^5 in standard form? Round to two significant figures
870000
867500
0.000087
0.0000867
