What is a wave?
a disturbance in a medium that transfers energy from place to place
What is the crest?
This is the highest point a wave reaches above the equilibrium.
What is a mechanical wave?
Sound is a type of this kind of wave that moves through matter.
What is a code?
A pattern of symbols used to communicate information is called this.
What type of wave is light?
electromagnetic.
What are mechanical waves?
Waves that require a material medium to travel through, such as solids, liquids, or gases.
What is the trough?
The lowest point of the wave below the equilibrium is called this.
What are vibrations?
All sound waves originate as these.
What is binary code?
Any code that uses just two symbols to represent information is called this.
What is a medium and does light need one to travel?
Solid, liquid, or gas. No light does not.
What are electromagnetic waves?
Waves that do not need a material medium and can travel through a vacuum.
What is the amplitude?
The distance from the dotted line in the middle of a transverse wave to the crest or the trough is known as this.
What is the strength?
The loudness of a sound is based on this characteristic of the vibration.
What are gestures?
These are actions we use to communicate, like waving or smiling.
What is a natural source of light example?
Sun, fire, lightning bugs.
What is a repeating pattern of motion caused by a disturbance?
Sound and water waves are examples of this type of wave that moves up and down or back and forth in a regular pattern.
What is the wavelength?
This is the measurement between two consecutive crests (or troughs) of a wave.
What is pitch?
This property of sound depends on how fast or slow the vibration is.
What is Morse code?
Samuel Morse developed this code which uses long and short sounds to communicate information.
What is reflection?
When light hits an object and bounces off its surface, this occurs.
What is a transverse wave?
When the particles in matter move back and forth at right angles to the direction the wave is traveling, it's this type of mechanical wave.
What is the frequency?
This describes the number of wavelengths that pass a point within a specific unit of time.
What type of matter does sound travel through best?
A solid.
What types of technology use radio waves?
Tv, radios, phones.
What are opaque materials?
Materials that do not allow any light waves to pass through them.