Here's why:
* Wave speed is determined by the medium: The speed of a wave is primarily determined by the properties of the medium through which it travels. For example:
* Sound waves: The speed of sound depends on the density and elasticity of the medium (like air, water, or solids).
* Light waves: The speed of light in a vacuum is a constant, but it slows down when traveling through different materials due to their refractive index.
* Amplitude is the wave's height: Amplitude refers to the maximum displacement of a wave from its equilibrium position. It represents the strength or intensity of the wave, not its speed.
Analogy: Imagine a rope tied to a wall. If you shake the rope with a small movement, you create a small wave. If you shake it with a large movement, you create a larger wave. Both waves will travel down the rope at the same speed, regardless of their size.
Exceptions:
* In some nonlinear systems, the speed of the wave can be slightly affected by amplitude. However, this is typically a minor effect and does not apply to most common wave phenomena.
In summary: The speed of a wave is determined by the medium it travels through, not its amplitude. Amplitude determines the intensity or energy of the wave.