Assessment: Wave and Sound

What does a water wave transport as it travels across a pond?

A wave pushed and pulled along the length of a slinky spring forms compressions and rarefactions. What type of wave is this?

A wave has a frequency of 25 Hz and travels at 100 m/s. Find its wavelength.

An echo from a wall returns after 0.5 s. Using the speed of sound in air as 340 m/s, find the distance to the wall.

A displacement-distance graph shows successive peaks at 0 m, 3 m, 6 m, and 9 m. Find the wavelength.

A wave bounces off a flat wall with an angle of incidence of 40°. Find the angle of reflection.

Why can astronauts on a spacewalk not hear each other by shouting directly across the vacuum of space?

A guitar string produces the musical note "concert A" at 440 Hz. Using the speed of sound in air as 340 m/s, find the wavelength of this sound. (Round to 2 decimal places.)

A ship's sonar sends a pulse and receives the echo 2.4 s later; the sea floor beneath it is known to be 1800 m deep. Find the speed of sound in seawater implied by this measurement.

A doorway is 0.9 m wide. A bass tone has a wavelength of 3.4 m, and a treble tone has a wavelength of 0.068 m. Which diffracts MORE strongly through the doorway, and why?