Customary and Metric Systems of Measurement Flashcards

1
Q

What are the two primary systems of measurement?

A

Customary

Metric

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2
Q

Which system of measurement is used most often in the United States?

A

Customary

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3
Q

Who created the National Standards in the U.S. to determine the exact measurement of an inch, foot and etc?

A

National Institute of Standards and Technology

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3
Q

Which system of measurement is used by all countries, except the United States?

A

Metric System

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4
Q

When was the metric system implemented? by whom?

A

1790’s

French Scientists

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5
Q

The updated system of metric measurements is called?

A

System of International Units

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6
Q

The metric system is based on?

A

Powers of 10

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7
Q

Two advantages of using the metric system are it’s

A

simplicity

and ease of calculations using the powers of 10

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8
Q

In the metric system the decimal point is moved to the left to

A

change from a larger unit to a smaller unit

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9
Q

In the metric system the decimal point is moved to the right to

A

Change from a smaller unit to a larger unit

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10
Q

The metric system is the _________ _________ _________ ___________ of measurement

A

World Recognize International Standard

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11
Q

The use of the Metric system has been authorized by law since

A

1866

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12
Q

President ________ in _________ signed the Metric Conversion Act into law

A

Gerald R Ford

1975

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13
Q

President _________ in _________ signed an executive order 12770 which stated,

A

George W Bush 1992
stating that all new federal construction projects must be developed using metric measurements, and all federal agencies involved in construction agreed to a final target metric conversion date of January 1, 1994.

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14
Q

What are the Prefixes and Powers of 10

A
Tera
Giga
Mega
Kilo
Heca
Deca
-
deci
centi
milli
micro
nano
pico
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15
Q

How do you convert from a Customary unit to a metric unit?

A

Take the value of the customary unit and multiply by its metric equivalent

16
Q

What are the three scales used for measurement of Temperature?

A

Kelvin (K)
Celcius (C)
Fahrenheit (F)

17
Q

What is the conversion formula for Fahrenheit to Celcius

A

C=5/9(F-32)

18
Q

What is the conversion formula from Celsius to Fahrenheit?

A

F=9/5(C+32)