Question

garrett throws a large rock into a waveless pond. the impact of the rock hitting the water causes waves to travel along the ponds surface toward the shore.

if garrett counts the number of waves that reach the shore over a 10-second period, what property of the waves is he measuring?
a. wavelength
b. speed
c. amplitude
d. frequency

Explanation:

• Wavelength is the distance between identical wave points.
• Speed is distance a wave travels over time.
• Amplitude is wave's maximum displacement from rest.
• Frequency is the number of wave cycles per unit time, which matches counting waves over 10 seconds.

Answer:

D. frequency