standing wave:basic

Standing waves are created by

• Two identical waves reflecting off each other

• Two identical waves being diffracted together

• Two identical waves move through each other in opposite directions

• Two identical waves are diffracted from two identical sources

Tags

NGSS.HS-PS4-1

A violin string of length 0.54 m and wave speed of 565 m/s along it. Calculate the frequency of the 5th harmonic.

• 1046.3 HZ

• 282.5 Hz

• 3138.89 Hz

• 1546 Hz

Tags

NGSS.HS-PS4-1

Which harmonic is shown?

• 1st
• 2nd
• 3rd
• 4th

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

The second harmonic on a string fixed at both ends shows

• A wavelength

• Half a wavelength

• Two wavelengths

Tags

NGSS.HS-PS4-1

The lowest point on a wave is the:

• Amplitude
• Crest
• Trough
• Wavelength

When a guitar is tuned to adjust its pitch, what is it that is changed?

• The wavelength of the fundamental.
• The frequency of the fundamental.
• The amplitude of the fundamental.

Tags

NGSS.HS-PS4-1

What does it mean to reflect?

• bounce off
• bend
• refract
• energy

Tags

NGSS.HS-PS4-5

The figure represents a string of length L, fixed at both ends, vibrating in several harmonics. Which string shows the 4th harmonic?

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS4-1

In the diagram which letters represent where a sound wave will be at its loudest?

• A B C

• A C 3

• B D

• B D E

• A C D

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

A guitar string has a length of 60 cm. When disturbed, the fundamental frequency is 250Hz. What is the velocity of wave on string in m/s?

• 300

• 450

• 600

• 150