General
What do we call a repeating pattern of motion caused by a disturbance?
A wave
Can we hear sound in space?
No
Does light travel in a straight line until it runs into something?
Yes
What code was invented by Samuel Morse?
Morse Code
What part of a wave is the crest?
The highest point of the wave.
What needs to happen for a sound to occur?
Something needs to vibrate
Do all the colors have the same wavelength?
No
What is a binary code?
A code that uses two symbols.
The number of waves in a given amount of time is called what?
The frequency
What is pitch?
How high or low a sound is.
When light is soaked into a material, what do we call it?
Absorption
What two symbols does Morse Code use?
Dots and Dashes
An electromagnetic wave
What part of the ear changes the sound wave vibrations into signals to send to the brain?
Inner ear
What type of material allows no light to pass through it and creates a strong shadow?
Opaque materials
What type of waves do we use to communicate with technology?
Radio waves
Which kind of wave requires a medium to travel?
Mechanical waves
What are the small bones in the middle ear called?
Hammer, anvil and stirrup
What is refraction?
When light hits and objects and changes directions and looks bent.
Use Morse Code to decode the message below:
.-- / .- / ...- / . / ... /
.-. / ..- / .-.. / . / !
Waves Rule!