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Applied Physics Ch 1
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What is a
Standard of Measure
?
Sets of units of measurement for length, weight, and other quantities defined in a way that is useful to a large number of people
What does
SI
stand for?
Systeme International d'Unites
Name 4 SI units of Measure
Kilogram, second, kelvin, mole, meter (metre), liter (litre), watt, joule
Who is
Gabriel Mouton
?
A man who is often credited for originating the metric system
What is the
Scientific Notation
?
A useful method of expressing such very small or large numbers
What is 10,000 in
Scientific Notation
?
10
^{4}
What is the basic SI unit of length?
Meter/metre(m)
What is a
Conversion Factor
?
An expression used to change from one unit or set of units to another example: Meter to Centimeter
What is
Area
of a figure?
The number of square units that it contains
What is the
Volume
of a figure?
The number of cubic units that it contains
What is the
Mass
of an object?
The quantity of material making up the object
What is the basic unit of mass in the metric system?
Kilogram (kg)
What is the
Weight
of an object?
A measure of the gravitational force or pull acting on it
What is the weight unit in the metric system?
Newton (N)
What is a
Spring Balance
?
An instrument containing a spring with a pointer attached to it
What is a
Platform Balance
?
Consists of two platforms connected by a horizontal rod that balances on a knife edge
What is the basic unit of time?
Second (s)
What is an
Exact Number
?
A number that has been determined as a result of counting such as 24 students in a class
What is an
Approximate Number
?
Numbers determined as a result of some measurement process. direct-with ruler indirect- surveying transit
What are
Significant Digits
?
The number of units that we are reasonably sure of having counted when making a measurement
Author
xosari08xo
ID
59506
Card Set
Applied Physics Ch 1
Description
Ch1
Updated
2011-01-13T19:00:21Z
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