Waves & Standing Waves

Points of maximum amplitude on a standing wave are called

• Nodes

• Antinodes

• Points of interference

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NGSS.HS-PS4-5

How many nodes does this standing wave have?

• 1

• 2

• 3

• 4

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NGSS.HS-PS4-1

How many antinodes does this standing wave have?

• 5

• 6

• 7

• 8

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NGSS.HS-PS4-1

The first harmonic has

• 1 antinode

• 1 node

• 2 antinodes

• no nodes

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NGSS.HS-PS4-5

This standing wave is the

• 5th harmonic

• 6th harmonic

• 7th harmonic

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NGSS.HS-PS4-1

in the equation f=v/2L , L is

• the speed of light

• the number of antinodes

• the length of the string

• the length of a single cycle

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NGSS.HS-PS4-1

Strings have ....... at each end

• a node

• an antinode

The second harmonic on a string fixed at both ends shows

• A wavelength

• Half a wavelength

• Two wavelengths

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NGSS.HS-PS4-1

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

Do standing waves carry energy from one area to another?

• Yes

• No

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NGSS.HS-PS4-5