How to read an oscilloscope (PAG 5.3)

An explanation of how to read the voltage and frequency of a wave on an oscilloscope.
NOTE: At 2m04s, the voltage quoted is not the amplitude of the wave, nor is it the peak voltage. It is the peak-to-peak voltage. To find the amplitude or peak voltage, you need to halve this value.
By Cowen Physics (www.cowenphysics.com)

[@mariehill6547]

I thought we measure the amplitude from the equilibrium position to the maximum height, not the whole height of the wave.

[@CowenPhysics]

You are correct. Thank you for spotting this - I've added a clarification to the description.

[@townley1017]

Why do we need to know the volts if we aren't going to use them? Is that for something else?

[@CowenPhysics]

+Townley 101 Yeah, in this example we didn't use the voltage. An oscilloscope can be used as a voltmeter, especially if you're dealing with an AC signal (beyond A Level). For our purposes, it's useful just to know how to determine the amplitude of the signal.

[@jamespresland868]

THANKS M8

[@thebgrey]

PAGS huh....