Inteference of Sound
What application uses wave interference?
Noise-canceling headphones, etc
What happens to the sound when the amplitude is larger?
It becomes louder
What is the name of the theory that caused the formation of the moon?
Collision theory
What is Nebula
Nebulas are clouds of dust and gas in space.
Which layer of the Earth are the tectonic plates located.
Crust
What is interference of sound?
Interference of sound is the phenomenon that occurs when two or more sound waves overlap and combine to form a new wave pattern.
What is frequency measured in?
hertz or Hz
What was the size of the planet that collided with Earth?
The size of Mars
What are the nurseries that store growing stars?
Stellar nursery.
What is the name of the supercontinent that existed 300million years ago
Pangea
How can the interference of sound be used in noise-canceling headphones?
By generating sound waves that are the inverse of the sound, canceling it out.
What will happen to the sound if the number of waves per second increases?
The frequency and pitch increase, so louder and higher pitch
What was the name of the planet that collided with Earth?
Theia
What is the plural form of Nebula?
How do convection currents move tectonic plates?
Hot mantle rises, cools, sinks—pushing plates.
How is sound quality minimized in a hall or room?
adding diffusers, absorbers, and curved surfaces to reduce destructive interference.
Can a sound exist without a pitch? why?
Yes, A sound can exist without pitch — it just won’t have a musical tone. You can still hear it, but you won't be able to sing it. Like Whitenoise
What happened after the planet collided with Earth?
A ring of rocks and dust formed
What do Nebulae contain?
Hydrogen, Helium and stellar dust.
How are mountains formed by tectonic activity?
When two continental plates collide and push the crust upward.
What happens to the interference pattern if the frequency of the sound is increased?
The wavelength decreases, so the interference fringes (regions of loud/soft sound) become closer together.
What happens to the pitch when the distance between the listener increases?
The pitch stays the same; increasing distance affects loudness but not pitch.
How is the moon formed?
Rocks and dust come together to form the moon
Which nebula is the easier to see if you live in the southern hemisphere?
Carina Nebula
What happens at a convergent plate boundary?
Plates move toward each other and may cause mountains or subduction.