Study Guide – Chapter 2 Analyzing Data



Study Guide – Chapter 2 Analyzing Data

Section 1 Units and Measurement

1. Time, Second

2. Kilogram, kg

3. Temperature, K

4. Meter, m

5. b

6. d

7. a

8. c

9. The correct order is: giga-, mega-, kilo-, centi-, milli-, nano-, pico-.

10. a. c; 1/100

b. k; 1000

c. m; 1/1000

11. Celsius; no, the SI unit for temperature is the kelvin.

12. 1000 g

13. 1,000,000 liters

14. 100 cm

15. Base units are defined units based on specific objects or events in the physical world. Derived units are defined by combining base units.

16. Density is a ratio that compares the mass of an object to its volume.

17. Canned goods are more dense than paper goods. They have more mass per unit volume. Thus, for the same volume, the canned goods have more mass than the paper goods. The greater mass is more difficult to lift.

18. Answers may vary. Students should note that density is defined as the mass of an object divided by its volume. Thus, algebraically, you can determine that an object’s volume is equal to its mass divided by its density.

19. analyze, solve, and evaluate

20. Add 273 to degrees Celsius.

Section 2 Scientific Notation and Dimensional Analysis

1. 1.61×102

1.627 62×10(27 kg

2.8×10-8

9.10939×10(31 kg

2. a. 5×106 km

b. 8.394×109 s

c. 4.×10(4 g

d. 3×10(2 cm

3. A conversion factor is a ratio of equivalent values used to express the same quantity in different units.

4. a method of problem solving that often uses conversion factors

5. kg; g; kg; g

6. m; cm; m; cm

7. L; kL; L; kL

8. cm; m; cm; m

9. km; h; m; km; h; min; min; s; m/s

Section 3 Uncertainty in Data

1. a. (blank)

b. precise

c. accurate, precise

2. a

3. c

4. d

5. b

6. c

7. significant figures

8. estimated

9. Non-zero

10. zeros

11. placeholders

12. counting numbers

13. scientific notation

14. a. 12.56 km

b. 1.001

c. 100.0

d. 23.34

15. a. 13

b. 12.738

c. 12.7835

d. 12.78346

16. a. 121

b. 120.8

c. 120.75

d. 120.7524

17. a. 115.6 kg

b. 4.25 cm

c. 2 m3

d. 1.90 m/s

Section 4 Representing Data

1. circle graph

2. bar graph

3. 60%

4. August; November

5. 7

6. 3

7. 1

8. 5

9. 2

10. 6

11. 4

Section 12.4 Phase Changes

1. gas, liquid; released

2. gas, solid; released

3. liquid; solid, released

4. solid, liquid; required

5. solid, gas; required

6. liquid, gas; required

7. b

8. c

9. a

10. temperature and pressure

11. a. vapor

b. solid

c. liquid

12. the normal freezing point of water

13. 100.00 degrees Celsius

14. the temperatures and pressures at which solid water and water vapor could exist

15. Critical point; the pressure and temperature above which water cannot exist as a liquid

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download