Standing Waves

How many antinodes does this standing wave have?

• 5

• 6

• 7

• 8

In the diagram which letters represent the nodes

• A B C

• A C E

• B D

• B D E

• A C D

Which harmonic is shown?

• 1st
• 2nd
• 3rd
• 4th

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

The moving black dot is called:

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

_______ is the number of waves that past in a given amount of time.

• frequency
• amplitude
• wavelength
• resonance

When two waves combine to form a new wave with a smaller amplitude, it is called 

• Refraction
• Constructive Interference
• Resonance
• Destructive Interference

The lowest point on a wave is the:

• Amplitude
• Crest
• Trough
• Wavelength

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