Final answer:
The given statement is false because the amplitude of one wave can be affected by another through interference regardless of precise alignment. When waves meet, they can either constructively or destructively interfere, altering the resultant wave's amplitude.
Step-by-step explanation:
The statement 'The amplitude of one wave is affected by the amplitude of another wave only when they are precisely aligned' refers to a concept in Physics known as wave interference. This statement is false. The correct notion is that the amplitude of a wave can be affected by the amplitude of another wave when they interact or superpose, which is known as interference. This interaction does not require the waves to be precisely aligned; it only requires that they meet or overlap in some way.
When two waves meet, they interfere with each other; if they are in phase (i.e., their crests align with crests and troughs with troughs), they undergo constructive interference, where their amplitudes add together. Conversely, if they are out of phase (i.e. crests align with troughs of the other wave), they undergo destructive interference, resulting in a smaller amplitude or even cancellation. This principle is observable in various phenomena such as sound waves, light waves, and water waves.