Question

waves webquest part 2
use this diagram to answer a - d.
a. what type of wave is illustrated?
b. what positions are labeled?
i. u
ii. r
iii. d
c. draw a horizontal line to show one wavelength on the diagram and label it w.
d. draw a vertical line to show an amplitude and label it a.
use the diagram on the next page to answer e - f.
e. what type of wave is illustrated above?
f. how many of each of the following are in the diagram?
i. crests
ii. troughs
iii. amplitudes
iv. wavelengths
use this diagram to answer g - j.
propagation
movement of molecules
wavelength

Explanation:

a. Transverse waves have oscillations perpendicular to propagation, shown by crests/troughs.
b. U is the highest point (crest), R is equilibrium (rest position), D is the lowest point (trough).
c. Wavelength is distance between consecutive crests/troughs (horizontal line between two crests).
d. Amplitude is max displacement from rest (vertical line from R to U or R to D).
e. Longitudinal waves have molecule movement parallel to propagation (compressions/rarefactions).
f. Assuming 3 crests, 3 troughs; amplitude is a property (1 per wave); 3 wavelengths (distance between 4 crests = 3 wavelengths).

Answer:

a. Transverse wave
b. i. U: Crest, ii. R: Rest position, iii. D: Trough
c. (Horizontal line between two consecutive crests labeled W)
d. (Vertical line from R to U labeled A)
e. Longitudinal wave
f. i. 3, ii. 3, iii. 1, iv. 3