A wave travels along a stretched rope. Its crests rise 8 cm above the rope's rest line, neighboring crests are 40 cm apart, and 4 crests pass a marker each second. Which quantity is 40 cm?

Waves cross a water tank. A floating cork rises and falls through 5 complete up-and-down cycles every second as the waves go past it. Which quantity of these waves is 5 Hz?

A microphone shows a sound wave on a screen. Each peak of the trace rises 0.4 volts above the flat center line, and the peaks repeat 200 times each second. Which quantity is 0.4 volts?

Ocean waves lift and lower a weather buoy. The buoy takes 4 seconds to complete one full up-and-down bob. Which quantity of these waves is 4 seconds?

A student shakes one end of a spring and photographs the wave. On the photograph she measures the distance from one crest to the very next crest. Which wave quantity has she measured?

A wave runs along a rope. A student measures how far a crest reaches above the undisturbed rest line of that rope. Which wave quantity has he measured?

A speaker cone pushes air back and forth 250 times each second, making a sound wave in the room. Which quantity of that sound wave is 250 Hz?

Ocean crests reach a harbor wall every 6 seconds, and neighboring crests on the water are 18 m apart. Which quantity of these waves is 18 m?

A guitar string is plucked harder than before. It now swings further from its rest position, but the note sounds at exactly the same pitch. Which wave quantity has increased?

A radio transmitter makes electric charges vibrate 98 million times each second, sending out a radio wave. Which quantity of that radio wave is 98 million hertz?

Two waves travel along the same stretched spring at the same speed. Wave X passes a marker 2 times each second. Wave Y passes the same marker 8 times each second. How do their wavelengths compare?

In one water tank, waves P and Q have the same wavelength, but the crests of P are twice as high as the crests of Q. Which statement about wave P is correct?

Two waves travel along the same rope at the same speed. Wave A has a wavelength of 20 cm and wave B has a wavelength of 50 cm. Which wave has the higher frequency?

A drummer hits a drum softly, then hits the same drum much harder. The pitch of the sound does not change, but the sound is far louder. Which wave property is different?

Two sounds travel through the same room air and are equally loud. Note P sounds higher in pitch than note Q. Which statement about note P is correct?

Two waves are sent along the same stretched spring, kept at the same tension. Wave M has crests twice as tall as wave N's crests. How do the speeds of the two waves compare?

The table shows measurements of two waves sent along the same rope. Using the table, which statement about the two waves is accurate?

Red light and blue light both travel through a vacuum at the same speed, and red light has the longer wavelength. How do their frequencies compare?

Waves S and T span the same width of grid paper, their crests reaching the same height. Four crests of wave S fit that width, but only two crests of wave T. Which statement is correct?

In one pond, wave X takes 2 seconds to complete a cycle and wave Y takes 5 seconds to complete a cycle. Which wave has the higher frequency?

A sound of a single fixed frequency passes from air into water, where sound travels about four times faster. What happens to the wavelength of that sound in the water?

One seismograph records two earthquakes. For quake A the pen swings three times further from the center line than for quake B, and the time between peaks is the same for both. Which statement is correct?

Twenty-four complete waves pass a buoy in 6 seconds. The distance from one crest to the next crest is 2.5 m. What is the speed of these waves?

A cork on a wave tank completes one full up-and-down bob every 0.25 seconds. What is the frequency of the waves passing the cork?

A sound wave travels through air at 340 m/s with a frequency of 170 Hz. What is the wavelength of this sound?

Water waves in a long tank travel at 6 m/s. The distance from one crest to the next crest is 1.5 m. What is the frequency of these waves?

A student counts 30 wave crests passing a post at the edge of a lake during 10 seconds. What is the frequency of these waves?

On a wave traveling along a rope, the vertical distance measured straight down from a crest to the next trough is 12 cm. What is the amplitude of this wave?

Five complete waves fit exactly along a 2.0 m stretch of a wave tank. What is the wavelength of these waves?

A single crest travels the whole 24 m length of a wave channel in 8 seconds. What is the speed of the wave?

Waves passing a buoy have a frequency of 0.5 Hz. How long does the buoy take to complete one full up-and-down cycle?

A radio wave travels at 300,000,000 m/s and has a wavelength of 3 m. What is its frequency?

In a wave tank, waves of one frequency deliver energy to a paddle. Amplitude 1 cm gives 3 J, 2 cm gives 12 J, 3 cm gives 27 J. What energy is expected from amplitude 4 cm?

The amplitude of a water wave is doubled while its frequency stays the same. How does the energy the wave carries change?

In one wave tank, wave J has an amplitude of 2 cm and delivers 8 J to a paddle. Wave K has the same frequency but an amplitude of 6 cm. How much energy should wave K deliver?

In a wave tank, a wave of amplitude 4 cm delivers 32 J to a paddle. A second wave there has the same frequency and an amplitude of 2 cm. How much energy should it deliver?

A student wants the waves she sends along a rope to carry more energy, while keeping the number of waves passing each second exactly the same. What should she do?

A class measures the energy waves of different amplitudes deliver to a paddle in one tank. Look at the table. Which statement about the pattern in the data is accurate?

Two ocean waves reach a beach with the same frequency. Wave A rises 1 m from rest to crest, and wave B rises 5 m. About how does wave B's energy compare with wave A's?

An engineer reduces the amplitude of a sound wave to one third of its original value while keeping the frequency the same. What happens to the energy the wave carries?