9/29/22 - Units of Measurement and Conversions

Question 1

What is the prefix -deci (d) ?

Answer 1

0.1 or 1 x 10^-1

Question 2

What is the prefix -centi (c) ?

Answer 2

0.01 or 1 x 10^-2

Question 3

What is the prefix -milli (m) ?

Answer 3

0.001 or 1 x 10^-3

Question 4

What is the prefix -micro(μ) ?

Answer 4

1 x 10^-6

Question 5

What is the prefix -kilo (k) ?

Answer 5

1000 or 1 x 10^3

Question 6

What is the prefix -mega (M) ?

Answer 6

1,000,000 or 1 x 10^6

Question 7

What is the SI base unit of mass?

Answer 7

Kilograms (kg)

Question 8

What is the SI base unit of length?

Answer 8

Meter (m)

Question 9

What is the SI base unit of time?

Answer 9

Second (s)

Question 10

What is the SI base unit of temperature?

Answer 10

Kelvin (K)

Question 11

What is the SI base unit of electric current?

Answer 11

Ampere (A)

Question 12

What is the SI base unit of an amount of a substance?

Answer 12

Mole (mol)

Question 13

What is the SI base unit for luminosity?

Answer 13

Candela (cd)

Question 14

What does a unit conversion look like?

Answer 14

Given Unit x (Desired Unit)/(Given Unit)

Question 15

What is the SI unit for volume?

Answer 15

Cubic centimeters (cm^3)

Question 16

What is the conversion between cm^3 and liters?

Answer 16

1 L = 1000 cm^3

1 mL = 1 cm^3

Question 17

In what units do we measure density?

Answer 17

g/cm^3 or g/mL

Question 18

What is typically the effect of raising temperature on the density of a substance?

Answer 18

The density typically drops.

Question 19

What is the difference between weight and mass?

Answer 19

Mass is constant because an object’s quantity of matter doesn’t change.

Weight is variable because it depends on the local gravitational field acting on an object.