_______was one of the first people to use a telescope to look at space
Who is Galileo
What is the moon
The force that keeps planets orbiting the sun
What is gravity
The motion of the Earth around the sun and how long this movement take
What is revolution/orbit & one year or 365 days
All planets revolve around the sun in an _____ orbit.
What is elliptical
The moon phase that is necessary to potentially view a lunar eclipse
What is a full moon
The planet that is missing from this list:
Mercury, Venus, Earth, Jupiter, Saturn, Uranus, Neptune
What is Mars
This astronomer's work led to wide acceptance of the heliocentric model
Copernicus
True or False: The blue end of the visible light spectrum has longer wavelengths than the red end
False
Truth= the red end of the visible light spectrum has longer wavelegths
The reason we see the same side of the moon from Earth
The moon's revolution is equal to the moon's rotation= 27.3 days
This is responsible for the earth's seasons
What is the earth's tilt and revolution around the sun
What is the observers latitiude?
66.5 degrees north
What can be determined from the observed spectrum of this galaxy?
The spectrum is blueshifted meaning the galaxy is moving towards the observer.
What moon phase will Earth experience when the moon is located at position 1 in its orbit?
Full moon
How would you determine the difference in longitude if a location is 6 hours apart?
Earth rotates 15 degrees per hour, 6 X 15 = 90 degree difference in longitude
This star is found directly above the North Pole. This can be determined by finding the altitude of this star in the night sky.
What is Polaris? What is your latitude in the Northern Hemisphere?
How do you find te eccentricity of an ellipse?
Determine the distance between the foci and the length of the major axis. Eccentricity = d/L
Why do almost all distant celestial objects appear red shifted?
evidence of the big bang, explosion outwards everything is moving away from each other. The farther away the higher the recessional velocity
Explain why the moon goes through phases
From the perspective of Earth, we see differening pieces of the moon lit as the moon revolves around Earth
Is there a greater gravitaionl force of attraction between Mas 1 & 2 or Mass 3 & 4? Why?
Mass 1 = 15
Mass 2 = 30
1-2 Distance= 40
Mass 3= 50
Mass 4 =75
3-4 Distance= 10
Mass 3 & 4 since they are more massive and less distance between them