Select any text to leave targeted feedback, or use the comment box below
Chapter 1: Basics
Directly Related
When one goes up, the other also goes up
Tap to open
Directly Related
When one goes up, the other also goes up.
When one goes down, the other also goes down. They always move in the same direction.
Together
Both numbers climb
Order more coffees
More coffees ordered means more money spent. Both values move in the same direction.
The slider still controls your order. Watch how the dot moves on the graph.
Order more coffees
When two things are directly related, the graph goes up from left to right. Both axes climb together.
Turn the knob to change amplitude
Amplitude: Low
These terms will come up later in detail. For now, just notice: when you turn up the power, both amplitude and intensity increase together. They are directly related. Click to preview.
Intensity▸
Definition: How strong or powerful the sound wave is.
Example: Think of it like volume. Louder sound has more intensity.
Amplitude▸
Definition: How tall the wave is, from peak to center.
Example: Bigger amplitude means a stronger signal. When intensity goes up, amplitude goes up too.
Quick Check
If one value increases and the other also increases, they are:
When intensity increases, what happens to amplitude?