Tagged Questions
2
votes
1answer
95 views
How can we test if something is a wave?
More specifically, I want to understand why a wave is a wave but a wave packet is not considered a wave (as discussed in this question).
I would think that if something have these characteristics: 1. ...
1
vote
2answers
320 views
Does a cycle (in Simple Harmonic Motion) have to equal 2π?
So, I search for the definition of cycle and I get this in Wikipedia:
A turn is a unit of angle measurement equal to 360° or 2π radians (or ...). A turn is also referred to as a revolution or ...
13
votes
7answers
1k views
What is a general definition of impedance?
Impedance is a concept that shows up in any area of physics concerning waves. In transmission lines, impedance is the ratio of voltage to current. In optics, index of refraction plays a role similar ...
