measurement
DESCRIPTION
TRANSCRIPT
MEASUREMENT
A comparison between a thing of unknown value and a thing of known
value.
thing of unknown value - the quantity to be
measured
the thing of known value - the measuring
instrument - standard- universally -accepted- consistent
Types of Quantities
1. Fundamental or
Basic Quantities2. Derived Quantities
The Fundamental or Basic Quantities
- Also called the undefinables
- Form the basis or foundation for the derived quantities
Length- The length of a thing is the distance between its
ends
Mass- Quantifies the amount of
matter in the body
Time- A dimension in which events occur in a sequence, quantifies the duration of events and the
intervals between them.
The Systems of Measurement/Units
The Systems of Measurement/Units
1. English
The Systems of Measurement/Units
1. English2. Metric
The Systems of Measurement/Units
1. English2. Metric
a) centimeter-gram-second (cgs)
The Systems of Measurement/Units
1. English2. Metric
a) centimeter-gram-second (cgs)b) meter-kilogram-second (mks)
The Systems of Measurement/Units
1. English2. Metric
a) centimeter-gram-second (cgs)b) meter-kilogram-second (mks)
3. International System of Units (SI)
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter meter
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter meter meter (m)
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter meter meter (m)
mass
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter meter meter (m)
mass ounce, pound
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter meter meter (m)
mass ounce, pound gram
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter meter meter (m)
mass ounce, pound gram kilogram
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter meter meter (m)
mass ounce, pound gram kilogram kilogram (kg)
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter meter meter (m)
mass ounce, pound gram kilogram kilogram (kg)
time
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter meter meter (m)
mass ounce, pound gram kilogram kilogram (kg)
time second, minute, hour
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter meter meter (m)
mass ounce, pound gram kilogram kilogram (kg)
time second, minute, hour
second
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter meter meter (m)
mass ounce, pound gram kilogram kilogram (kg)
time second, minute, hour
second second
Table of Units for the Fundamental Quantities
Fundamental Quantity
System of Measurement/Units
English Metric SI
cgs mks
length inch, foot, yard, mile
centimeter meter meter (m)
mass ounce, pound gram kilogram kilogram (kg)
time second, minute, hour
second second second (s)
• All measurement systems have standards.
• All measurement systems have standards.
• Standards are exact quantities that everyone agrees to use as a basis of comparison.
The Derived Quantities
- Combination of two or more fundamental quantities
- Defined in terms of fundamental
quantities
Area
Area= (length)2
Area= (length)2
m2
Volume
Volume= (length)3
Volume= (length)3
m3
Density
Density
mass
volume
Density
kg m3
mass
volume
Speed/Velocity
Speed/Velocity
distance
time
Speed/Velocity
m s
distance
time
Acceleration
Acceleration
velocity
time
Acceleration
m s2
velocity
time
Weight
Weight= (mass)(gravitational
acceleration)
Weight= (mass)(gravitational
acceleration)
= newton (N)
ms2
kg ·
Weight= (mass)(gravitational
acceleration)
N
= newton (N)
ms2
kg ·
Force
Force= (mass)(acceleration)
Force= (mass)(acceleration)
= newton (N)
ms2
kg ·
Force= (mass)(acceleration)
N
= newton (N)
ms2
kg ·
Work/Energy/Heat
Work/Energy/Heat= (force)(distance)
Work/Energy/Heat= (force)(distance)
N·m = joule (J)
Work/Energy/Heat= (force)(distance)
J
N·m = joule (J)
Power
Power
work
time
Power
Js
work
time
= watt (W)
Power
Js
work
time
= watt (W)
W
Pressure
Pressure
force
area
Pressure
m2
force
area
= pascal (Pa)
N
Pressure
m2
force
area
= pascal (Pa)
N
Pa
The measure with which you measure
will be used to measure you.
- matthew 7:2