Waves move faster through certain materials because of how heavy and stretchy they are. But understanding this can be tricky. Let’s break it down:

• Density: If a material is heavy, it can slow down how fast the waves move.

• Elasticity: If a material is stretchy, it can help waves travel faster.

There’s a basic formula that shows how waves work: [ v = f \lambda ]

In this formula:

• ( v ) stands for speed,
• ( f ) means frequency (how often the waves go up and down), and
• ( \lambda ) is the wavelength (the distance between each wave).

When the frequency goes up, the wavelength gets shorter. This can make things even more confusing.

To make it easier to understand, practicing problems and using simulations can really help. These tools show how waves act in different materials, making it clearer to see how waves travel.