PHYC101 BSU Question Set 7 Bryan

*The wave diagram above depicts 12 seconds of a wave's motion. Determine the velocity of the wave.*

1/4 ft/s

A floating object oscillate up and down 2 complete cycles in 1 second as a water wave of wavelength 5 meters passes by. The speed of the wave is...

10 m/s

The string above is 6 meters long and is vibrating as the third harmonic (three loops). The string vibrates up and down with 45 complete vibrational cycles in 10 seconds. Determine the frequency for this wave.

45/10 hertz

*The number of nodes in the standing wave shown in the diagram above is...*

8

*The amplitude of the wave in the diagram above is given by letter...*

D

Two wave crests are generated at opposite ends of a long rope. Will there be an instant in which the rope's amplitude is zero everywhere?

No

If you double the frequency of a vibrating object, its period...

halves.

A wave travels an average distance of 1 meter in 1 second with a frequency of 1 hertz. Its amplitude is...

not enough information to say.

*The wave diagram above depicts 12 seconds of a wave's motion. Determine the wavelength of the wave.*

0.5 ft

A weight suspended from a spring bobs up and down over a distance of one meter in two seconds. Its frequency is...

0.5 hertz

An object that completes 10 vibrations in 20 seconds has a frequency of...

0.5 hertz

A fly flaps its wings back and forth 150 times each second. The period of a wing flap is...

1/150 sec

*The wave diagram above depicts 12 seconds of a wave's motion. Determine the frequency of the wave.*

1/2 Hz

Two boats are anchored four meters apart. They bob up and down once every three seconds, but when one is up the other is down. There are never any wave crests between the boats. Calculate the frequency of the waves.

1/2 hertz

A transverse wave is found to have a vertical distance of 4 cm from a trough to a crest, a frequency of 12 Hz, and a horizontal distance of 5 cm from a crest to the nearest trough. Determine the wavelength of its wave.

10 cm

A transfers wave is found to have a vertical distance of 8 cm from a trough to a crest, a frequency of 12 Hz, and a horizontal distance of 6 cm from a crest to the nearest trough. Determine the wavelength of this wave.

12 cm

A transverse wave is found to have a vertical distance of 4 cm from a trough to a crest, a frequency of 12 Hz, and a horizontal distance of 5 cm from a crest to the nearest trough. Determine the amplitude of this wave.

2 cm

A floating leaf oscillates up and down two complete cycles each second as a water wave passes by. What is the waves frequency?

2 hertz

An object that complete 20 vibrations in 10 seconds has a frequency of...

2 hertz

The amplitude of a particular wave is 1 meeter. The top-to-bottom distance of the disturbance is...

2 m

A floating leaf oscillates up and down two complete cycles in one second as a water wave passes by. The wave's wavelength is 10 meters. What is the waves speed?

20 m/s

The strong above is 6 meters long and is vibrating as the third harmonic (three loops). The string vibrates up and down with 80 complete vibrational cycles in 10 seconds. Determine the speed of this wave.

32 m/s

A standing wave is formed in the string in the picture shown above by rapidly moving the string back and forth. If the string is 12 feet long and 20 complete back and forth vibration are made every 4 s, what is the frequency of the standing wave?

5 Hz

A standing wave is formed in the string in the picture shown above by rapidly moving the string back and forth. If the string is 12 feet long and 20 complete cycles back and forth vibrations are made every 4 s, what is the speed of the standing wave?

5 ft/s

A 60-vibration-per-second wave travels 30 meters in 1 second. Its frequency is...

60 hertz and it travels at 30 m/s

The string above is 1.5 meters long and is vibrating as the first harmonic (one loop). The string vibrates up and down with 30 complete vibrational cycles in 10 seconds. Determine the speed of the wave.

9 m/s

*The wavelength of the wave in the diagram above is given by letter...*

A

The spreading of a wave around a barrier or through an opening is known as...

Diffraction

Doubling the frequency of a wave source doubles the speed of the waves. (T or F)

False

The result of the superposition of two or more waves traveling through the same medium is known as...

Interference

A wave is transporting energy from left to right. The particles of the wave are moving back and forth in a leftward and rightward direction. This type of wave is know as...

Longitudinal

A node is a position of...

Minimum amplitude

*Mr. Wegley attaches a slinky to the wall and begins introducing pulses with different amplitudes. Which of the two pulses (A or B) below will reach the wall first?*

Neither

A standing wave is formed in the string in the picture shown above by rapidly moving the string back and forth. What must be done to decrease the number of loops?

Shake the string back and forth less rapidly.

Like a transverse wave, a longitudinal wave has...

amplitude, frequency, wavelength, and speed

As the frequency of a wave increases, the period of the wave...

decreases

You dip your finger repeatedly into the water and make waves. If you dip your finger more frequently, the period of the waves...

decreases

You dip your finger repeatedly into water and make waves. If you dip your finger more frequently, the wavelength of the waves...

decreases

Pulling a stretched out slinky tighter will cause a pulse sent down the slinky to have...

greater speed.

*You dip your finger repeatedly into water and make waves. If you dip your finger more frequently, the amplitude of the waves...*

increases

A transverse wave is transporting energy from east to west. The particles of the medium will move...

north to south.

During a single period, the distance traveled by a wave is...

one wavelength

To say that one wave is out of phase with another is to say that the waves are...

out of step.

In a longitudinal wave, the particles of the medium vibrate or move _____ to the direction the wave is traveling.

parallel

Wave interferences occurs for...

sound, light, and water waves

The speed of a wave depends upon (i.e., is casually affected by)

the properties of the medium through which the wave travels.

A pulse in a more dense medium is raveling towards the boundary with a less dense medium. The frequency of the transmitter pulse will be _____ the frequency of the incident pulse.

the same as