Basic ASTR fun
What is a tentative explanation for a n observation or phenomena
Hypothesis
Acceleration is a change in velocity
True
How do we know the earth is round?
Pendulum, coriolis effect, pictures from the moon
Which color has the least energy
red
Do EM waves require a medium to move through?
No
What is an Astronomical Unit (AU)? (not numerical)
the average distance from the earth to the sun.
What is a heliocentric model of the solar system?
Putting the sun at the center
What is a change in direction and speed?
velocity
Which color has the longest wavelength
red
What type of telescope uses mirrors?
Reflecting
I am looking at a galaxy 300 million light years away. What I see today is what that galaxy looked like????
300 million ya
Is the big dipper a constellation?
No Asterism
What is the reason for seasons
tilt of the earth's axis
Sun Earth Moon in order is what type of eclipse
Lunar
What color is the absorption of all colors
Black
Where does one have the best chance to see all the stars rise and set?
Equator
Name 2 thing galileo is famous for
So many
What is the most accurate calculation of a day?
sidereal - 23 hours 56 min
How does light behave?
As a particle and a photon
Why is there a limit to the size of a telescope lense or mirror?
weight
What are the 4 fundamental forces
Strong, Weak, magnetic, gravity
Why was copernicus model of the solar system incorrect?
perfect circles
What is the minimum speed required to escape the gravity of a celestial body
escape velocity
What gives off EM waves
everything
Which telescope has the purpose of finding star and planet formations?
James Webb