# dimensions, units, and conversions Flashcards Preview

## EGG 101 > dimensions, units, and conversions > Flashcards

Flashcards in dimensions, units, and conversions Deck (12)
1
Q

The Magna Carta (1215) also attempted to
standardize measurements throughout the kingdom,
although it concentrated on measures of beer and
wine.

A

true

2
Q

dimensions divided into two areas

A

fundamental & derived

3
Q

fundamental

A

length, mass, time, temp, electrical current, luminous intensity, (angle)

4
Q

derived

A

velocity, acceleration, force, pressure, energy/work, power, frequency, electrical resistance, electrical potential, capitance,inductance, magnetic flux

5
Q

dimensional systems

A

 Absolute System
 Dimensions are not affected by gravity.
 Fundamental dimensions; Length (L), Time (T) & Mass(M).
 Widely used in the scientific branches.
 Example: SI System (a.k.a. Metric System)
 Gravitational System
 Gravitational force affects dimensions.
 Fundamental dimensions; Lengh (L), Time(T) & Force(F).
 Widely used in the engineering branches.
 Example: US Customary System

6
Q

absolute system

A

Absolute System
 Dimensions are not affected by gravity.
 Fundamental dimensions; Length (L), Time (T) & Mass(M).
 Widely used in the scientific branches.
 Example: SI System (a.k.a. Metric System)

7
Q

dimensional systems

A

 Gravitational System
 Gravitational force affects dimensions.
 Fundamental dimensions; Lengh (L), Time(T) & Force(F).
 Widely used in the engineering branches.
 Example: US Customary System

8
Q

International System of Units

A

 Abbreviated SI from the French Le Système
International d’Unités
 Modern form of the metric system
 Developed in 1960 from the old metre‐kilogram‐
second system
 The world’s most widely used system of
measurement

9
Q

base SI units

A

foundational units upon which all other units are based.

10
Q

supplementary SI units

A

may be considered as base or derived units

11
Q

derived SI units

A

formed by combining base, supplementary or other derived units

12
Q

US Customary versus SI System

A

 US customary system is a gravitational based system
 SI system is an absolute based system
 US customary system is at the mercy of “local” gravity
 SI system is independent of gravity
 US customary system sees very limited use
 SI system is used globally