Properties of Light and Sound
A ___________ is created when light is blocked by an opaque object.
shadow
This is the source of most of the light on Earth
The sun
We can use one of these to record sound
A microphone
This method of putting together many still pictures to create the illusion of movement was originally called "Motion Picture Technology"
Video
This is the colour of light that contains all of the other colours
white
Sound travels in the form of ____________
waves
The name for man-made sources of light
Artificial
When light is captured by a still camera, it creates an imaged called a _____________
photograph
This vocal enhancement tool is used to make bad singers sound better
Autotune
Sound is the movement of _____________ through a substance
particles
Bats, dolphins and other animals use this method to "see" using sound
Echolocation
Human beings create sound by passing air over this part of the throat
The vocal cords
The first sound recorders used this material to record sounds by scratching lines onto its surface.
Wax cylinders
This audio remixing technique allows artists to take recorded sounds and to turn them into music
Sampling
Light is made up of these tiny particles
Sound travels fastest through a _____________ substance
solid
This is the name for a light source that creates its own light
An emitter
In modern cameras, light passes through an __________, which can open and close just like the human eye
iris
This image created by computer software is the visual representation of a sound
A waveform
This type of light is invisible to the human eye, but can be made visible by using a blacklight
ultraviolet
It takes this many minutes for light from the Sun to reach the Earth
eight
The moon is an example of a ____________ of light
reflector
This part of a microphone vibrates when struck by sound waves, in a similar way to the human eardrum
The diaphragm
This invention by Alexander Graham Bell allowed people to record sounds onto vinyl records and then listen to them back
The gramophone