Light And Sound Flashcards
The white light By the prism to form a
Dispersed
Spectrum
Triangular glass bock that will disperse white light into the spectrum =
Prism
Transparent material that will absorb certain colours of light and allow others to pass through
Filter
An object that doesn’t let light pass through it
Opaque
The only body in the solar system that is a light system
Sun
An object that gives out its own light
Luminous
What is the law of reflection
Angle of incidence is the same as the angle of reflection
All sounds are caused by what
Vibration
Sound travels in what
Sound waves
Sound waves can travel through what
Solid liquid gas
What can sound waves not travel through
A vacuum
What does the amplitude control
Loudness
What does the frequency control
Pitch
Large amplitude
Loud sound
Small amplitude
Quiet sound
More frequent
Higher pitch
Less frequent
Lower pitch
Amplitude is measured in what
M or cm
Frequency is what
Number of waves per second
Hertz
What is amplitude
Height of a wave
Sound travels fastest through
Solid
Sound travels slowest through
Gas
Speed of sound through water
1510 m/s
Sound is measured in what
Decibels
