EM Spectrum
Waves
Wave Interactions
Wave anatomy
Mystery Science
1
Electromagnetic waves travel fastest in this.
In a vacuum
1
Which state of matter do mechanical waves travel fastest in and why?
solids because the molecules are closer together, transferring the energy more efficiently
1
This is what happens when light enters an object and does not leave.
absorbtion
1
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
1
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
2
Why is the rainbow in the order it's in?
The size of the wavelength of each color determines the order of the rainbow.
2
A reflection of a sound wave is what?
an echo
2
What is it called when a wave hits an object and bounces back?
Reflection
2
Explain how to measure the wavelength in a transverse wave.
Measure from one crest to the next or one trough next.
2
True or false: A narwhal's horn is actually a tooth that grows out of it's mouth.
True
3
Color if all light waves are absorbed.
What is black?
3
Explain how longitudinal waves travel
They travel side to side, causing compressions and rarefaction.
3
A wave with a frequency of 65 Hz tells us what?
65 waves cycle every second
3
What is rarefaction in a longitudinal wave.
It is the point in the wave when the particles are spread out
3
When squeezed, the hagfish releases how much mucus to escape?
up to 6 gallons
4
Why are gamma rays so harmful?
Because their energy is so high, they are dangerous
4
As amplitude increases, energy does what?
Energy increases
4
When a wave changes speeds/bends and direction as it moves from one medium to another.
Refraction
4
Which wavelength has the highest amplitude?
2
4
Which animal has the most complex visual system on the planet?
Mantis shrimp
5
As wavelength increases, energy does what?
Energy decreases
5
What would the wavelength for a wave with high frequency be?
The wavelength would be short
5
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.
5
Which letter represents the wavelength of this sound wave?
B
5
What large animal is most difficult to detect using an infrared camera?
Polar bear