Measurement
Significant Figures
Sci. Notation
Dimensional Analysis
Density and % Error
100
The curve in the upper surface of a liquid close to the surface of a container
What is a meniscus?
100
How many significant figures are in the number 1,200?
2
100
Write out the number 4,890,000 in scientific notation
4.89 x 106
100
Using the metric system, convert 345.678 kg to grams
345,678
100
Density Formula
Density = mass / volume
200
What is the length shows by the arrow on the picture?
8.98
200
How many significant figures are in the number 0.00351?
3
200
Write out the number 0.00000402 in scientific notation
4.02 x 10-6
200
Using the metric system, convert 89.032 km to mm
89,032,000
200
Calculate the volume of an object that has a mass of 75.0 grams and a density of 121.0 g/mL
0.620 mL
300
Which quantities can be measured directly?
1. The number of stars in the sky
2. The number of kilometers in a mile
3. The number of rocks in a park
4. The number of outlets in your room
Numbers 2 and 4
300
Solve:
304.50 X 0.8010=
243.9
300
Write out 6.55 X 105 in standard notation
655,000
300
Using the metric system, convert 5,076.1 mm to meter
5.0761
300
Calculate the mass of an object that has a volume of 36 mL and a density of 53.0 g/mL
1.9 x 103
400
Read this meniscus:
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24.0 mL
400
Solve the following:
12.4 + 108.034 + 9.88 =
130.3
400
Write out 7.1 X 10-8 in standard notation
0.000000071
400
Using the metric system, convert 45.68 m to cm
4,568
400
Percent Error Formula
| Accepted value - experimental value / accepted value | * 100
500
What is the mass shown in the picture?
200.51
500
Solve the following:
(2.403/0.145) X 5.5207 =
91.5
500
1.23x10-2 x 5.89x10-8
7.24 x 10-10
500
Convert 45,000 minutes into days
31
500
Calculate the % error
- Experimental value = 1.24 g
- Accepted value = 1.30 g
4.62%