5. Waves and Sound

Wave Properties — Quiz

Test your understanding of wave properties with 5 practice questions.

Practice Questions

Question 1

A wave is observed to have a frequency of $25 \text{ Hz}$ and a wavelength of $0.4 \text{ m}$. If this wave then passes into a new medium where its speed becomes $15 \text{ m/s}$, what will be the new frequency of the wave?

Question 2

Consider a wave traveling on a string. If the tension in the string is quadrupled (increased by a factor of 4) while the linear mass density remains constant, how does the wave speed change?

Question 3

A sound wave with a frequency of $500 \text{ Hz}$ travels through air at a speed of $340 \text{ m/s}$. When this sound wave enters water, its speed increases to $1500 \text{ m/s}$. What is the wavelength of the sound wave in water?

Question 4

A transverse wave has a maximum displacement of $0.15 \text{ m}$ from its equilibrium position. If the wave's frequency is $10 \text{ Hz}$ and its speed is $20 \text{ m/s}$, what is the total vertical distance a particle in the medium travels in one complete period?

Question 5

A wave has a period of $0.05 \text{ s}$ and a wavelength of $2.5 \text{ m}$. What is the wave speed?