up and down and back and forth in a "s" type curve
100
Who is Christian Doppler and what was his contribution to science?DHe
He described the "Doppler Effect:" sound and light waves compress or elongate as the source of the sound or light moves in relation to the observer
100
What type of shift occurs when a object is moving closer to Earth?
Moving away from Earth?
Towards Earth = Blue Shift
Away from Earth = Red Shift
100
Put this number into scientific notation:
289,000,000
2.89 X 10 ^8
200
Mechanical waves _____ require a medium to travel through while electromagnetic waves ____ require a medium to travel.
do , do not
200
Describe the way a compressional wave moves
by squeezing and spreading matter
200
What is the idea of geocentric and who came up with it?
Its the idea that Aristotle and Ptolemy stated that suggests the Earth was the center of the known universe and that objects in space rotate around the Earth
200
How fast does light travel in a second?
186,000 miles per second
200
Explain Blue Shift and Red Shift as it relates to objects in space.
Blue shift occurs when object are moving toward Earth.
Red shift occurs when objects are moving away from Earth.
300
What are the two types of mechanical waves?
transverse and compressional/longitudnal waves
300
As the frequency of sound increase what happens to the pitch?
it increases or becomes higher
300
Who stated the idea of heliocentric (the idea that the sun is the center of the universe)?
Copernicus
300
If a star is 5 light years away from Earth. How far away is it from Earth?
( 1 light year is 6 trillion miles)
30 trillion miles
300
What is a group of galaxies called?
a cluster
400
List all the different types of electromagnetic waves
must include wave height, crest,trough,wavelength, amplitude
400
What contribution did Hubble have on modern day astronomy ?
Classified the different shapes of galaxies
400
List the three types of galaxies.
Spiral, irregular, elliptical
400
In reference with sound waves, the waves compress as they move ___________ you and elongate as they move __________ from you.
toward, away
500
Explain the process of light refraction
Light waves are refracted or bent into individual wave lengths when traveling through a medium, such as visible light traveling through a prism or water droplets and refracting into ROYGBIV color wavelengths.
500
Draw and compressional/longitudnal wave
must include compression and rarefraction
500
Who is a scientist considered the father of modern day astronomy?
Nicolaus Copernicus
500
What are the three main theories of how the universe started?
Big Bang Theory, Oscillating Universe Model, Steady State Theory
500
How many years have Ms. Fackler and Mrs. Easley taught 8th grade Science together?