EM Spectrum
What is the only EM wave length that we can see?
Visible light
When I look at a green leaf, these/this color(s) are absorbed the the leaf ___________ while these/this color(s) are reflected ____________.
All colors excluding green
Green
True/False: Sound and light waves travel at different speeds in different mediums
TRUE
This is a well supported statement that explains why a natural phenomenon occurs. these are widely accepted as true and can be continuously built upon by other scientists when we find new evidence or data that supports a change.
Theory
What causes a rainbow?
Refraction of white light in water particles in the air.
List the EM waves that come from the sun, in order from longest wavelength to shortest wavelength
Radio, Micro, infrared, Visible, Ultraviolet, Xray, Gamma
Which property of light causes a straw to look distorted in water?
Refraction
Light waves travel fastest in _________ and slowest in ________
Sound: Fastest = Solid | Slowest = Gas
Light: Fastest = Vacuum/gas | Slowest = Solid
Data collected during experimentation that helps support or reject a hypothesis.
Empirical evidence
How many Astronomical Units away is the Earth from the Sun?
1 AU
On the EM Spectrum, going from Radio waves to Gamma rays, as _________ increases, ____________ decreases
Frequency/Energy | Wavelength
White light passing through a glass prism will refract into ______________
Rainbow / ROYGBIV
I decrease the density of a medium, going from a liquid to a gas.
How will that effect sound waves?
How will that effect light waves?
Sound: Slow down
Light waves: Speed up
Space technology such as the Mars Rover or Parker Solar Probe must send signals back using EM waves with a long wavelength and low energy. Which EM wave is being used?
Radio wave
How would we measure the distance between the Milky Way and the Andromeda Galaxy?
Light Year
Each EM wave has a different ______, ______, and ________
Wavelength, frequency, energy
Black object __________ all wavelengths of visible light while white object __________ all wavelengths of visible light.
Absorb | Reflect
What is the name given to the substance through which a wave travels?
Medium
Which piece of technology was the first to allow us to see greater detail of far away objects in space?
Telescope
Why does light not reach the ocean floor?
Light move slowly in water and is absorbed by water particles until it can not travel any further.
As part of his job at the U.S. Forestry Service, Scott uses satellite images to identify forest areas that have been cleared due to logging. The satellite images, which show show forests appearing cooler and cleared areas appearing warmer, are produced using electromagnetic radiation. Which part of the electromagnetic spectrum does Scott’s technology most likely use?
Infrared Radiation
The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.
With this information, if I shined a laser on a mirror at a 45 degree angle, it will bounce back at a ______ degree angle in the _________ direction.
45 | Opposite
WHY does light bend when it reaches water?
The speed of light changes when it travels from gas to liquid.
When a hypothesis is proven to be incorrect, other than reporting your findings honestly, what should you do to your hypothesis if you would like to run your experiment again?
Make a new hypothesis using the information you found in your last experiment.
When you are laying out on the beach, and you feel the warmth of the sun, what EM wave are you feeling?
Infrared