Slides in this set
What Are Waves?
Vibrations that move energy from place to
place, but do not transfer matter.
Some waves like sound waves need particles to
move through, called a medium.
Some waves can travel though vacuums, such
as electromagnetic waves.
There are two types of wave; longitudinal and
This is a Transverse wave.
· The motion of particles is perpendicular to the
direction of travel. (If the wave is moving right
the particles will move up and down.)
· Plucking a guitar string (the vibrations.)
· Any wave in the electromagnetic spectrum:…read more
This is a Longitidinal wave.
Its particles move parallel to the direction of
When the Waves are more bunched up, it is called
a compression, and when they are spaced out, it
is called a rarefaction.
A sound wave.
A slinky.…read more
Amplitude: The distance from the centre line
to a peak, the higher the amplitude, the louder
Wavelength: The distance between two peaks
or troughs; the higher the frequency, the
closer the waves are to each other, and the
higher the pitch of the sound.
Frequency: The amount of waves produced by a
source each second, measured in Hertz (Hz).
Time period: The number of waves passing a
point per unit of time.…read more
An oscillator is a piece of equipment used to
display a wave on a CRO display.
When sounds having different pitch and
volume are emitted by an amplifier, electrons
bounce around metal plates causing an electric
It is a clear way of seeing the properties of a
1. Low amplitude, long
wave; wavelength. Quiet, low pitch.
2. High amplitude, low
wavelength. Loud, low pitch.
3. High amplitude, high
wavelength. Loud, high pitch.…read more