A sound of single frequency is called a tone, characterized by its purity and absence of overtones or harmonics.

The quality, or timbre, distinguishes sounds with the same pitch and loudness, with rich quality being more pleasant.

Hitting a table harder increases the force applied, resulting in a larger amplitude sound wave with greater energy, which is perceived as a louder sound.

The force applied to an object affects the amplitude of the sound wave it produces, with greater force typically resulting in larger amplitudes.

The primary aspect of sound determined by its amplitude is its loudness, with higher amplitudes corresponding to louder sounds.