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Waves #1
Waves #2
Sound Waves
EM Waves
Vocabulary
100

the movement of particles by a wave.

What is vibration.

100
the lowest point of a transverse wave
What is troughs.
100

a wave that travels parallel to the source as it travels through a medium.

What is longitudinal/compressional wave.

100

Sound waves are mechanical waves, light waves are ________________ waves.

What is electromagnetic.

100
the height of the wave from its trough or crest to its midpoint, is a measure of the wave's intensity.
What is amplitude.
200
a wave that moves matter up and down as it travels through a medium.
What is transverse wave.
200
a disturbance that transfers energy from one point to another
What is a wave.
200
highness or lowness of a sound, depends on the frequency of the sound waves.
What is pitch.
200

A black t-shirt will __________ light, we know this because the cloth rises in temperature. 

What is absorb.

200

A repetitive back and forth movement

What is oscillate. 

300
the highest point of a transverse wave.
What is crest.
300
the distance between wave crests and troughs.
What is wavelength.
300
the difference in the loudness of sound
What is volume.
300

A green light on a plant will ___________ light. 

What is reflect.

300

The process where a wave passes completely through a medium or boundary and emerges the other side. 

What is transmit.

400

a measure of how many wave crests or troughs pass a given point in one unit of time.

What is frequency.

400
an area where paticles in a medium are pushed together by a wave's energy
What is compression.
400

an area where particles in a medium are spread apart by a wave's energy.

What is rarefaction.

400

Light can travel through the ______________ of empty space since it does not need a medium. 

What is vacuum.

400

A signal used by microphones and sensors that use continuous data. 

What is analog signal.
500
occurs when the direction of a wave changes because of a change in medium
What is refraction.
500
sound waves must travel through this in order to transfer energy.
What is medium.
500

A unit of measure using volume as sound

What is decibels.

500

The speed of light is

300,000,000 (million) meters per second

500

A signal used by smartphones and computers that can travel far distances 

What is digital signal.