Waves
What is a wave?
A moving pattern of energy through matter or space
What is a transverse wave?
A wave that moves up and down - like a sound wave
What is the highest point in a wave?
The crest
What happens when light is reflected?
The light waves bounce off an objects surface
What is a code?
A system of symbols, letters, or signals used to communicate information
Name one type of wave
Examples: ocean waves, sound waves, light waves, transverse wave, longitudinal wave
What is a longitudinal wave?
A wave that moves side to side
What is the lowest point in a wave?
The trough
What happens when light waves are refracted?
The light waves hit an objects surface, then change direction
How can morse code be used using light?
Flashing dots and dashes with a flashlight or light.
What do waves carry from one place to another?
Energy
What is light absorption?
When light waves are being soaked up
What is the distance between two waves?
The wavelength
What is an artificial source of light?
Sources of light that are man made. Examples include a candle, a lightbulb, a flashlight, etc.
What two numbers make up binary code?
0 and 1
Which type of waves moves faster; light waves or sound waves?
Light waves
What is the difference between a transverse wave and a longitudinal wave?
Transverse waves move up and down, longitudinal waves move side to side
What is the height of a wave?
The amplitude
What is an example of a natural source of light?
The sun, a fire, a meteor - Light that happens naturally
What is morse code used for?
To communicate messages using dots and dashes
What is the difference between sound waves and light waves?
Sound waves require a medium, light waves can travel through empty space
How are waves used to send information?
Light waves are used to see light and color, sound waves are used to hear things. Waves are also used for information transfer
What is the number of waves passing by a single point?
The frequency
Why does a red apple look red?
Red light waves are being reflected
What is binary code used for?
Computers use binary code to translate information