Ch2 Powerpoint

Question 1

Unit Equation

Answer 1

Statement of two equivalent quantities (For example, 1km = 1000 m)

Question 2

Unit Factor

Answer 2

A ratio of two equivalent quantities (For example, 1m/100cm)

Question 3

Percent

Answer 3

Expresses the amount of a single quantity compared to an entire sample; Ratio of parts per 100 parts

Question 4

Volume

Answer 4

lwh (Can also be determined by displacement of water)

Question 5

Density

Answer 5

Mass/Volume

Question 6

Temperature

Answer 6

Measure of the average energy of particles in a sample

Question 7

Heat

Answer 7

Measure of the total energy of a substance

Question 8

Specific heat

Answer 8

Measure of how much heat is required to raise the temperature of a substance

Question 9

Kilo

Answer 9

k, 1 x 10^3

Question 10

Basic units (4)

Answer 10

meter (m), gram (g), liter (L), second (s)

Question 11

Deci-

Answer 11

d, 1 x 10^-1

Question 12

Centi-

Answer 12

c, 1 x 10^-2

Question 13

Milli-

Answer 13

m, 1 x 10^-3

Question 14

Micro-

Answer 14

mu, 1 x 10^-6

Question 15

Nano-

Answer 15

n, 1 x 10^-9

Question 16

1 inch = …cm

Answer 16

2.54cm

Question 17

1 lbs = …g

Answer 17

454g

Question 18

1 cm^3 = …

Answer 18

1mL

Question 19

What is the equation of density?

Answer 19

mass/volume = density

Question 20

What is the density of water?

Answer 20

1.00 g/mL

Question 21

1 Ga = …L

Answer 21

3.785

Question 22

Celsius to Farenheit

Answer 22

F = 1.8C + 32

Question 23

Celsius to Kelvin

Answer 23

K = C + 273

Question 24

Where was the English System first primarily used?

Answer 24

The British Empire

Question 25

What commitee designed the metric system?

Answer 25

The French

Question 26

The metric system

Answer 26

Contains a single base unit for each measurement

Question 27

What are the 2 other names for the Unit Analysis Method

Answer 27

- Dimensional analysis - Factor-label method

Question 28

1qt = ...mL

Answer 28

946mL

Question 29

1 sec = ...s

Answer 29

1.00 s (assume 3 sig figs)

Question 30

What is the density of water?

Answer 30

1.00 g/mL

Question 31

Density of liquids

Answer 31

g/mL

Question 32

Density of solids

Answer 32

g/cm^3

Question 33

Density of gases

Answer 33

g/L

Question 34

How do you estimate density?

Answer 34

comparing the density of an object of another object (do they sink, do they float?)

Question 35

Name the three temp scales

Answer 35

- Farenheit - Celsius - Kelvin

Question 36

What is the absolute/base temperature?

Answer 36

Kelvin

Question 37

Heat

Answer 37

Measure of the /total/ energy

Question 38

Temperature

Answer 38

Measure of the /average energy/ of particles in a system

Question 39

What two terms is heat often expressed in?

Answer 39

Joules (J) and calories (cal)