Chapter 2 Measurement and Problem Solving

Question 1

What is the formula for density?

Answer 1

divide the mass of a given amount of a substance by its volume

Question 2

What does tera denote?

Answer 2

10¹²

Question 3

What does the prefix giga denote?

Answer 3

10⁹

Question 4

What does the prefix mega denote?

Answer 4

10⁶

Question 5

What does the prefix kilo denote?

Answer 5

10³

Question 6

What does the prefix deci denote?

Answer 6

10^-1

Question 7

What does the prefix centi denote?

Answer 7

10^-2

Question 8

What does the prefix milli denote?

Answer 8

10^-3

Question 9

What does the prefix micro denote?

Answer 9

10^-6

Question 10

What does the prefix nano denote?

Answer 10

10^-9

Question 11

What does the prefix pico denote?

Answer 11

10^-12

Question 12

What does the prefix femto denote?

Answer 12

10^-15

Question 13

What is matter?

Answer 13

Anything that occupies space and has mass

Question 14

What are the two properties of matter?

Answer 14

Physical and Chemical

Question 15

What is heat capacity?

Answer 15

The quantity of heat required to change the temperature of a substance by 1ºC

Question 16

What is the specific heat capacity of a substance?

Answer 16

The heat capacity of a substance expressed in joules per gram per degree of substance

Question 17

What is the formula for calculating specific heat capacity?

Answer 17

heat = mass x specific heat capacity x temperature change

Question 18

What is the formula for converting between Kelvin and Celsius?

Answer 18

K = ºC + 273.15

Question 19

What is the formula for converting between ºC and ºF?

Answer 19

ºC = (ºF-32) / 1.8

Question 20

How many joules are in 1 calorie ( cal) ?

Answer 20

4.184 joules (J)

Question 21

How many joules are in 1 kilowatt-hour?

Answer 21

3.60x10⁶ joules (J)

Question 22

What does the unit of measurement calorie (cal) represent?

Answer 22

The amount of energy required to raise 1 g of water by 1 ºC