Final answer:
The statement about tidal flats being submerged during ebb tides is false; they are instead exposed during ebb tides. A pebble dropped in water is not typically referred to as a pulse wave in physics. The interaction of wave amplitudes occurs through superposition, not just when waves are precisely aligned.
Step-by-step explanation:
The statement 'Tidal flats are mostly submerged during ebb tides' is false. Tidal flats are geographical features that are affected by the tides, consisting of mainly silt and clay. These areas are exposed during low tides, or ebb tides, and are submerged during high tides. An example of an area with notable tides that can create tidal flats is the Bay of Fundy in Nova Scotia, which is famous for its extreme tides. Understanding the dynamics of tidal flats is important as they are considered low energy environments critical for various ecosystems.
In physics terms, the statement 'A pebble dropped in water is an example of a pulse wave' would be false. A pulse wave is a single disturbance that moves through a medium, and while dropping a pebble in water does create a disturbance, it is typically not referred to as a pulse wave within the context of wave studies.
Regarding wave interactions, the statement 'The amplitude of one wave is affected by the amplitude of another wave only when they are precisely aligned' is also false. Waves can affect each other's amplitudes through the principles of superposition, which occurs when two or more waves overlap, not necessarily only when they are precisely aligned.