Systems-of- Measurement-Units-and-Unit-Conversion

Question 1

“It is a capital mistake to theorize before one has data. Insensibly one begins to twist the facts to suit the theories, instead of the theories to suit the facts.

Answer 1

Sherlock Holmes (Arthur Conan Doyle, 1859-1930)

Question 2

made up of a number and a unit.

Answer 2

measurements

Question 3

what is “10” in measurement?

Answer 3

number

Question 4

what is “km” in measurement?

Answer 4

unit

Question 5

comprises units such as inch, mile, ounce, quarts, etc.

Answer 5

english system or british system

Question 6

constitutes units based on powers of 10

Answer 6

metric system

Question 7

• the official system of measurement used throughout the world.
  
  • built upon a set of seven metric units, which are called (?)

Answer 7

international system of units (base units)

Question 8

fundamental quantity:

Answer 8

• length
• mass
• time

Question 9

derived quantity:

Answer 9

• area (length)²
• volume (length)³
• speed (length/time)

Question 10

physical quantity:

Answer 10

• mass
• length
• time
• amount of substance
• temperature
• electric current
• luminous intensity

Question 11

units - symbol:

• kilogram
• meters
• second
• mole
• Kelvin
• Ampere
• candela

Answer 11

• kg
• m
• s
• mol
• K
• A
• cd

Question 12

used to make a new unit larger or smaller than the base unit.

Answer 12

unit prefix or metric prefix

Question 13

a technique of converting between units.

Answer 13

dimensionsal analysis

Question 14

is an equation that shows the equivalent amounts of different units.

ex: 1 ft = 12 in , 1 hr = 60 min , 1 m = 100 cm

Answer 14

unit equation (conversion factor)

Question 15

Dimensional Analysis could be:

Answer 15

metric to metric system
metric to english system
emglish to english system
english to metric system