Question

1. which number above represents the trough?
2. which number represents the wavelength?
3. which number represents the crest?
4. which number represents the amplitude?
5. the two waves above have different frequencies, but they have the same __________?

Explanation:

Step1: Recall wave - related definitions

The trough is the lowest point of a wave.

Step2: Identify the trough in the wave diagram

In the given wave, number 2 represents the trough.

Step3: Recall the definition of wavelength

The wavelength is the distance between two consecutive points in phase (e.g., two crests or two troughs).

Step4: Identify the wavelength in the wave diagram

Number 1 represents the wavelength.

Step5: Recall the definition of crest

The crest is the highest point of a wave.

Step6: Identify the crest in the wave diagram

Number 4 represents the crest.

Step7: Recall the definition of amplitude

The amplitude is the maximum displacement from the equilibrium position.

Step8: Identify the amplitude in the wave diagram

Number 3 represents the amplitude.

Step9: Analyze the second - wave diagram

For two waves with different frequencies, if the maximum and minimum displacements from the equilibrium position are the same, they have the same amplitude.

Answer:

1. 2
2. 1
3. 4
4. 3
5. Amplitude