As Physics Standing Waves

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

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NGSS.HS-PS4-1

In the diagram which letters represent the nodes

• A B C

• A C E

• B D

• B D E

• A C D

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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

The moving black dot is called:

• a node
• an anti-node
• an anti-amplitude
• the wangy bit

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NGSS.HS-PS4-1

The stationary dot is called:

• a node.
• an anti-node.
• the amplitude.
• the not moving bit.

Which harmonic is shown?

• 1st
• 2nd
• 3rd
• 4th

Tags

NGSS.HS-PS4-1

How many antinodes does this standing wave have?

• 5

• 6

• 7

• 8

Tags

NGSS.HS-PS4-1

The first harmonic has

• 1 antinode

• 1 node

• 2 antinodes

• no nodes

The second harmonic on a string fixed at both ends shows

• A wavelength

• Half a wavelength

• Two wavelengths

Tags

NGSS.HS-PS4-1

The third harmonic on a string fixed at both ends shows

• A wavelength and a half

• Half a wavelength

• Two wavelengths

• A wavelength

Tags

NGSS.HS-PS4-1