Waves
Sound
Electromagnetic Spectrum
Color
Bending Light/music
100
Two types of waves?
longitudinal and transverse
100
What is reasonce?
If the sound reaches an object at the same frequency as natural frequency of the object the object will vibrate at this frequency.
100
What are photons?
tiny partical like bundles of radiation
100
Why do objects have different colors?
Objects appear different colors because they absorb some colors (wavelengths) and reflected or transmit other colors.
100
What is Reflection?
When a wave strikes and object and bounces off.
200
What is wavelength?
The distance between crest to crest(Trough to trough)
200
What are the two types of sound interference?
constructive and deconstructive
200
High energy photons=?
High frequency light
200
What is Reflection?
When a wave strikes and object and bounces off.
200
What is refraction?
The bending of waves caused by change in their speed when they move from one median to another.
300
What is the crest and trough of a wave?
The top and bottom of a wavelenth.
300
What is the Doppler effect?
How sound is effected by stationary and moving sound sources.
300
What is EM radiation?
The transfer of energy by electromagnetic waves
300
What happens to wavelengths during absorption?
Only the color you see is being reflected the rest are being absorbed.
300
What is an example of reverberation?
The sound after someone sings or plucks a guitar
400
What is amplitude?
The distance from crest(Trough) to the rest position of a wave.
400
How does the ear detect sound?
Comes in through the outer ear it travels through the ear cannel and the membrane vibrates in the eardrum. Travels through the middle ear bones. Then in the cochella the hairstyles that vibrate causing nerve impulse to send signals to the brain.
400
What ultraviolet waves used for?
Absorbed by the skin used in florescent tubes. Photons are stronger.
400
What are pigments?
A colored materiel that absorbs some colors and reflects some
400
What is loudness(Human perception of sound intensity) measured in?
dB
500
What is wave velocity and frequency?
Wave velocity, describes how fast the wave moves forward. Frequency, the number of waves that pass a fixed place in a given amount of time.
500
What is natural frequency?
The natural sound something wants to vibrate at.
500
Types of EM Radiation
Radio waves, micro waves, infrared, visible light, ultraviolet, x-rays, gamma rays
500
How does the eye detect color?
Cones allow you to see color and detailed shapes.
500
What is acoustics and pitch?
Acoustics is the study of sound, pitch is highest or lowest point of sound.