Page 6 - Final Science BB Prep2 Part one (2nd term) 2024-2025_Neat

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Science Prep.2

WHAT IS MEANT BY?

THE AMPLITUDE OF A VIBRATING BODY = 2 CM

THIS MEANS THAT: THE MAXIMUM DISPLACEMENT THAT
DONE BY THE VIBRATING BODY= 2 CM

COMPLETE OSCILLATION:

The motion of oscillating body when it passes by single point two successive times in

the same direction A B A C A

So, complete vibration includes four displacements each one called amplitude

Note:

Amplitude = ¼ x complete

oscillation

Periodic time (T) Frequency (F)

It is the time that the oscillating body takes to It is the number of complete oscillations
make one complete oscillation. that is made by the oscillating body in one
second.

Measuring unit
Second (sec.) Oscillation/sec. or Hertz(Hz)

MULTIPLIES OF THE HERTZ:
3
KILOHERTZ = 1 X 10 HERTZ
6
MEGAHERTZ = 1 X 10 HERTZ
9
GIGAHERTZ = 1 X 10 HERTZ

Law used

Periodic Frequency

time= .
. =

NOTE: 1 HZ = COMPLETE OSCILLATION/ SECOND = CYCLES / SECOND

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