Chapter 2 Review for the Test on Data Analysis

Density

100

A 5ml sample of water has a mass of 24g. What is the density of water?

4.8 g/mL

200

What is the volume of a sample that has a mass 26.9g and a density 13.4 g/cm³

2.01 cm³

300

Define the SI units for length, mass, time, and temperature.

length: meter; mass: kilogram; time: second; temperature: kelvin

400

What is the mass of a rock that dropped in a graduated cylinder with a initial volume of 40 and a final volume of 62mL. The density of the rock is 4.6 g/mL.

101.2 g

500

Samples A, B, and C have masses of 80 g, 12 g, and 33 g and volumes of 20 mL, 4 cm3, and 11 mL, respectively. Which of the samples have the same density?

b and c

Scientific Notation

100

Express the number 700 in scientific notation

7 x 10²

200

Express the following number in scientific notation 0.000000076

7.6 x 10^-8

300

Express the quantity in regular notation along with its appropriate unit. 3.60 x 10⁵ s

360,000 s

400

Solve the problem and express the answer in scientific notation. a. (5.8 x 10^-5) + (3.4 x 10^-5)

9.2 x 10^-5

500

Solve the problem, and express the answer in (9.7x 10^-4) / (3.2 x 10^-14)

3.03 x 10¹⁰

Dimensional Analysis

100

How many centimeters are in a meter?

100 cm

200

How many milliseconds are in 0.129 hectoseconds

12,900 seconds

300

Convert 4800 decigrams to kg.

0.48 kg

400

How many ounces are in 43.5 kg. 

Conversion factors

1 kg = 2.2046 lbs and 1 lbs= 16oz

1534.40 ouncez

500

How many seconds are in 24 h?

86,400 s

Miscellaneous

100

When you convert from a small unit to a large unit, what happens to the number of units?

It decreases.

200

Define the SI units for length, mass, time, volume, and temperature.

length: meter; mass: kilogram; time: second; volume: liters temperature: kelvin or Celsius

300

If you move the decimal place to the left to convert a number into scientific notation, will the power of ten be positive or negative?

positive

400

The accepted length of a steel pipe is 5.5 m. Calculate the percent error for this measurements: 5.2 m

5.5%

500

What is the temperature in farhenheight for 314.5 K

106.43 ^oF

Significant Figures

100

Determine the number of significant figures in the measurement of 508.0 L

4

200

Determine the number of significant figures in each measurement 1.0200 x 10⁵ kg

5

300

Round the number to four significant figures, and write the answer in scientific notation. 0.00054818 g

5.482 x 10^-4g

400

Add and subtract as indicated, and round when necessary. 258.3 kg + 257.11 kg + 253 kg

768 kg

500

Round the number to four significant figures, and write the answer in scientific notation: 2.0145 mL

2.014 x 10⁰ ml or 2.014 ml