EM Spectrum
Waves
Wave Interactions
Wave anatomy
Mystery Science
100
Electromagnetic waves travel fastest in this.
In a vacuum
100
Which state of matter do mechanical waves travel fastest in and why?
solids because the molecules are closer together, transferring the energy more efficiently
100
This is what happens when light enters an object and does not leave.
absorbtion
100
True or False: The amplitude is measured from the tough to crest in a transverse wave.
False: it is measured from the midpoint in a wave
100
True or False: Lobsters are technically immortal and never die of old age.
True, they would continue to grow and molt forever and typically die of starvation, predation, or illness
200
Why is the rainbow in the order it's in?
The size of the wavelength of each color determines the order of the rainbow.
200
A reflection of a sound wave is what?
an echo
200
What is it called when a wave hits an object and bounces back?
Reflection
200
Explain how to measure the wavelength in a transverse wave.
Measure from one crest to the next or one trough next.
200
True or false: A narwhal's horn is actually a tooth that grows out of it's mouth.
True
300
Color if all light waves are absorbed.
What is black?
300
Explain how longitudinal waves travel
They travel side to side, causing compressions and rarefaction.
300
A wave with a frequency of 65 Hz tells us what?
65 waves cycle every second
300
What is rarefaction in a longitudinal wave.
It is the point in the wave when the particles are spread out
300
When squeezed, the hagfish releases how much mucus to escape?
up to 6 gallons
400
Why are gamma rays so harmful?
Because their energy is so high, they are dangerous
400
As amplitude increases, energy does what?
Energy increases
400
When a wave changes speeds/bends and direction as it moves from one medium to another.
Refraction
400
Which wavelength has the highest amplitude?
2
400
Which animal has the most complex visual system on the planet?
Mantis shrimp
500
As wavelength increases, energy does what?
Energy decreases
500
What would the wavelength for a wave with high frequency be?
The wavelength would be short
500
What's happening in this image and why?
Refraction because the light waves bend and travel at a different speed when it enters the water.
500
Which letter represents the wavelength of this sound wave?
B
500
What large animal is most difficult to detect using an infrared camera?
Polar bear