Question

what does amplitude represent in a wave? *
the waves speed
the waves strength or intensity
the waves direction
the waves length

Explanation:

Amplitude in a wave is related to the amount of energy it carries. Higher - amplitude waves have more energy, which is perceived as greater strength or intensity. For example, in sound waves, a higher - amplitude wave is louder; in light waves, it corresponds to greater brightness.

Answer:

The wave's strength or intensity