What type of wave is a sound wave?
Sound is an example of a longitudinal wave caused by ... in the air.
What's amplitude measured in?
Which piece of equipment increases the size of a current produced in a microphone?
how loud the sound wave is
What numbers are at the two ends of the decibel scale?
What does an oscilloscope show?
sound wave on a screen
What does an oscilloscope measure?
What type of current flows inside a loudspeaker?
Give characteristics of a wave that we can record using an oscilloscope:
What is the top of the wave?
what is regions of low pressure due to particles being spread further apart?
What's the meaning of longitudinal?
Longitudinal means that the wave moves in the same direction that the particles in the air are vibrating.
What is the amplitude?
the distance from the centre line (or the still position) to the top of a crest or to the bottom of a trough .