Sound Diffraction and Interference Video

Why do you sound different in your own head compared to your recorded voice?

• They type of wave it is

• The medium it is traveling through

• The speed of the wave

Although he could hear her, he could not see her this is because______

• Light waves are too small to diffract around a corner

• Light waves are too fast to move around the corner

• Light waves are too large to diffract around a corner

• Light needs a medium to travel

When lightning strikes, which type of wave travels faster?

• The sound of the thunder (rapid expansion of air)

• The light of the discharge (lightning bolt)

Because the elephant's sound waves are less than 20 Hz (What humans can hear) we call it

• Ultrasonic

• Hypesonic

• Infrasonic

• Sonic the Hedgehog

During constructive interference, 2 waves line up (crest to crest, trough to trough, compression to compression, rarefaction to rarefaction) and produce a ______________ wave

• Larger

• Smaller

When would a wave experience destructive interference

• When they align crest to crest

• When they align trough to trough

• when they align compression to rarefaction

• When they align compression to compression.

Waves can pass through each other unchanged because they are only transporting ___________

• Matter

• Energy

• Waves

• the medium

Notice the sound spreads out as it passes through the opening. It finds a DIFFERENT way around the window. This is an example of

• absorption

• reflection

• refraction

• diffraction

Since the compressions of 1 wave are matching up with the rarefactions of another wave, this is an example of _____________ interference

• constructive

• destructive