Waves 101
The distance between two consecutive waves
What is a wavelength?
How high or low a sound is
What is pitch?
True or False: Light waves travel in a straight line until they are disturbed
What is True?
A code developed by Samuel Morse that uses long and short sounds (dots and dashes) to represent letters for communication
What is morse code?
These are how sound waves originate and travel, disturbing the surrounding air molecules. The volume of a sound depends on the strength of these
What are vibrations?
The lowest point a wave reaches below the line of orgin
What is the trough?
True or False: The larger the frequency, the lower the pitch.
What is false?
While a fire, the sun and lightning bugs provide forms of natural light, this form of light is made by people, devices and inventions
What is artificial light?
True or False: Increasing the volume on a stereo means there will be more amplitude.
What is true?
DAILY DOUBLE!!! How some animals use soundwaves to locate other animals or prey in their environment
What is echolocation?
The highest point a wave reaches above the line of origin
What is the crest?
How much energy or volume a sound has. (how loud it is)
What is amplitude?
DAILY DOUBLE!!! When light hits some objects, it gets "soaked up" and turns to heat energy
What is absorption?
A digital code that uses 0s and 1s to transfer information between electronic devices
What is binary code?
A substance or material through which waves can travel
What is a medium?
The distance from the line of origin to the trough or the crest
What is amplitude?
DAILY DOUBLE! When 2 waves pass through each other, affecting their amplitude
What is wave interference?
When a light wave bounces off an object's surface at an angle equal to how it bounces off
What is reflection?
True or False: Sound is an electromagnetic wave that can travel through the vacuum of space
What is false? Sound is a mechanical wave that requires a material medium.
Describes a surface where light can travel straight through a without any disturbance (opaque, transparent, or translucent)
What is transparent?
The number of wavelengths that pass a point within a specific unit of time
What is frequency?
The state of matter through which sound travels the fastest
What are solids?
When light hits some materials, it changes direction.
What is refraction?
A type of waves used by people to communicate with spacecrafts, listen to broadcast radio, or use their cell phones.
What are radio waves?
The __________ ear is where sound vibrations stimulate thousands of tiny hair cells that send electrical signals to the auditory nerve in our brain.
What is the inner ear?