Lesson 2 Quiz Flashcards
What happens when a mechanical wave encounters a boundary between 2 different media?
When a mechanical wave encounters a boundary between two different media, it is partially reflected and partially transmitted.
What happens to the energies and amplitude of the two waves when a mechanical wave is partially reflected and partially transmitted?
The mechanical wave becomes two waves, and the energies and amplitudes of the two waves will differ.
Why are earthquakes more intense near the initial disturbance than they are further away?
Earthquakes are more intense near the initial disturbance due to the proximity to the energy source.
What property of a sound wave is a sound’s volume related to?
A sound’s volume is related to the amplitude of the sound wave.
What property of a sound wave is related to the pitch of a sound?
The pitch of a sound is related to the frequency of the sound wave.
Through which media do sound waves travel more slowly?
Sound waves travel more slowly through denser media.
What happens when a mechanical wave travels from its source?
When a mechanical wave travels from its source, its energy decreases due to spreading out over a larger area.
Which wave has the least effect on Earth’s surface?
The wave that has the least effect on Earth’s surface is the surface wave.
What happens to a mechanical wave when it encounters a boundary between two different media?
A mechanical wave is partially reflected and partially transmitted when it encounters a boundary between two different media.
