What is #2 referring to in this image?

What is #3 referring to in this image?

What is the highest point of a wave called?

What is the lowest point of a wave called?

What is the distance from the resting point of a wave to the highest or lowest point called?

Waves with larger amplitude transports less energy.

As the frequency of a wave _________, the wavelength ________.

____________ waves move particles back and forth along the same direction in which the waves travel.

Which unit is used to measure frequency?

Which wave has a higher frequency?

Which wave has a longer wavelength?

_____________ is/are the source of all sound waves.

In which medium does sound travel the fastest?

Wave energy is calculated by using the formula: $$e=amplitude^2$$ . What is the energy of a wave with an amplitude of 5?