Page 9 - GENERAL PHYSICS 1 DICTIONARY
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ONE DIMENSIONAL MOTION- is motion along a straight line. PASCAL- is the SI derived unit of pressure used to quantify
The line used for this motion is often the familiar x-axis, or x internal pressure, stress, Young's modulus and ultimate tensile
number line. strength
ORDER OF MAGNITUDE- is its magnitude in powers of ten when PASCAL'S PRINCIPLE- change in pressure applied to an enclosed
the physical quantity is expressed in powers of ten with one digit fluid is transmitted undiminished to all portions of the fluid and
to the left of the decimal. to the walls of its container.
OSCILLATION- can be a periodic motion that repeats itself in a PENDULUM- is a weight suspended from a pivot so that it can
regular cycle, such as a sine wave —a wave with perpetual swing freely.
motion as in the side-to-side swing of a pendulum, or the up- PERPETUAL MOTION- the action of a device that, once set in
and-down motion of a spring with a weight. motion, would continue in motion forever, with no additional
OSCILLATORS- is a device that exhibits motion around an energy required to maintain it.
equilibrium point. PITCH- is a term used to describe how high or low a note a
being played by a musical instrument or sung seems to be.
OSCILLATORY MOTION- is the repeated to and fro movement
of a system from its equilibrium position. POWER- is the amount of energy transferred or converted per
unit time.
PRECISION- is the amount of information whose conveyance
takes place by a number in terms of its digits
PRESSURE- is simply defined as the amount of force per unit
area.
