Chapter 4

Question 1

dimensionless

Answer 1

result from dividing by the same units

Question 2

conversion factors

Answer 2

conversion of units from one to another is accomplished through conversion factors

Question 3

mass

Answer 3

represents amount of protons, electrons, neutrons, in an object

Question 4

force

Answer 4

derives from attractive/repulsive interactions of a mass with surroundings

Question 5

weight

Answer 5

force derived from gravitational interactions

Question 6

pounds-force definition

Answer 6

the weight of 1 pound-mass in standard gravity

Question 7

absolute pressure

Answer 7

measured relative to vacuum

Question 8

atmospheric pressure

Answer 8

pressure of atmosphere relative to vacuum

Question 9

gauge pressure

Answer 9

measured relative to atmospheric pressure

Question 10

temperature value

Answer 10

measure the average random kinetic energy of matter

“It is 55 degrees outside”

Question 11

temperature interval

Answer 11

measures a change in random kinetic energy

“The temperature increased by 10 degrees”

Question 12

gram-mole (gmol, mole)

Answer 12

one mole of a substance has a mass equal to the numerical value of its molecular weight in grams

Question 13

Avogadro’s Number

Answer 13

6.02*10^23