Flashcards in Sound And Light Deck (32):
A mirror with a flat reflective surface
A exact reflection image
The bending of light waves when they slow down when they go through a different medium example through glass.
Reflection from a rough surface
Law of reflection
The law of reflection says that the incident ray is always equal to the ray of reflection.
The reflected ray is the ray of light that is reflected from the mirror , it is always equal to the ray of incidence.
The refracted ray is the ray that is refracted.
Angle of refraction
The angle made by the refracted ray
Any substance eg: air, glass ect
The cornea is the piece of skin protecting the pupil and the lens.
The lens is the part in your eye which is see through, the image is upside down but your brain flips it round.
The part in your eye which sees colour
A lens that converges the image, you use it when you are long sited
A lens that diverges the image, you use it when you are short sited
The dispersal ( splitting ) of white light into colours of the spectrum. This is due to the reflection in which each colour travels at different speeds.
The dispersion of white light into all colours that create it.
An oscillation that transfers energy
The highest point in a wave
The movement up and down in a wave
The pitch is determined by frequency
How loud it is or how far the peak or the trough is from the middle
How many waves go past a point in a second
The distance between two waves
In a transverse wave the oscillation is at 90 degrees to the direction of the wave
In longitudinal waves they move parallel to the direction of the wave
Speed of light
The speed of light is 299 792 458 m / s
The speed of sound
The speed of sound is 343 m / s in dry air
The speed in water is 1450-1498 m / s
The speed in steel is 5920 m / s
The audible range
The audible range is how loud or quiet you can hear
A vacuum is when their is no particles in somewhere for example space
Ultrasound is any sound above 20,000 Hz ( above the human audible range of hearing )
An echo is a reflected sound wave caused by reverberation