Question

1. what type of wave is illustrated above?

h. label each compression and each rarefaction.
i. what 2 parts of a transverse wave correspond to compression and rarefaction?
j. how many wavelengths are illustrated?
k. complete the check your understanding and document your answers below.
i. wavelength
ii. amplitude
iii. one full wavelength

1. http://www.physicsclassroom.com/class/waves/u10l2b.cfm - frequency vs. period

a. both frequency and period involve time, but how do they differ?
b. what is the si unit for frequency, which is the term we will use most often?
c. use the “investigate” wave plotter to change the frequency. keep the amplitude constant while you vary the frequency to see how the wavelength is affected. as frequency increases, wavelength ______________.
d. complete the check your understanding and document your answers on the back.

Explanation:

h. Compressions are high-density regions; rarefactions are low-density regions in longitudinal waves.
i. Transverse waves have crests (highest points) and troughs (lowest points) corresponding to compression and rarefaction.
j. Without the illustration, a typical basic wave diagram shows 1 full wavelength.
k. Check involves verifying understanding of wave definitions (e.g., wavelength).
2a. Frequency is cycles per second; period is seconds per cycle (inverse: \( f = \frac{1}{T} \)).
2b. SI unit for frequency is Hertz (Hz).
2c. For constant wave speed, wavelength decreases as frequency increases (\( v = f\lambda \)).

Answer:

h. Compressions: regions of maximum particle density; Rarefactions: regions of minimum particle density.
i. Crest (corresponds to compression) and trough (corresponds to rarefaction).
j. (No illustration provided; typical basic diagrams illustrate 1 full wavelength.)
k. (Involves confirming definitions, e.g., wavelength is the distance between two consecutive crests/troughs.)
2a. Frequency is the number of cycles per second; period is the time per cycle (they are inversely related).
2b. Hertz (Hz).
2c. Decreases.