Sound and Light Will
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What is Pitch?
How high or low a sound is perceived
What is a sound wave?
Wave caused by vibrations and travels through a medium
What is infrasound?
Vibration that has a frequency lower than 20Hz
What is ultrasound?
Vibration that has frequency higher than 20 000 Hz
What is resonance?
When two objects naturally vibrate at the same frequency
What is intensity?
The rate at which energy flows
What is a decibel?
Unit used to measure loudness
What is fundamental frequency?
What frequency it’s built to make
What are harmonics?
Whole number multiples of a frequency
What is Sonar?
Sonar is the hearing that humans can’t hear
What is a basilar Membrane?
The basilar membrane is the long flexible membrane in the cochlea
What is a photon?
A unit of light
What is intensity?
Intensity is a lot of of noise in one room
What is radar?
Radar is something that you can use to detect objects
What is the electromagnetic spectrum?
The electromagnetic spectrum is the range of things that you can see to things that you can’t see.
What is a Light Ray?
A Ray that lets you see objects
What is a virtual image?
Image that you can see that is there but you can’t touch it
What is a real image?
Image of an object that comes at a specific place
What is a diffuse reflection?
When light goes off in different directions
What are geometrical optics?
When light behaves as a ray
What is the angle of reflection?
Angle of light rays reflection off of something
What is the angle of incidence?
It’s the same as the angle of reflection
What are the laws of reflection?
It is that the angle of incidence always equals the angle of reflection
What is normal?
Where a line that hits perpendicular stays perpendicular when it reflects