True or False
Astronomy is the branch of science that deals with earth and its natural processes
False, Astronomy deals with the physical universe beyond the Earth's atmosphere.
What are the wavelengths we are able to see, callled?
Visible light
What are the two gases that make up a majority of the sun?
Helium, Hydrogen
What is a natural or artificial body orbiting a planet or star?
Satellite
A force of attraction existing between any 2 masses
Gravity
Friction is the action of one surface, material, or object rubbing against another
True
Which is a shorter wavelength, Ultraviolet or Infrared?
Ultraviolet
Sunspots
Which type of planets don't have rings
Terrestrial
The gaseous layer surrounding Earth or another heavenly body
Atmosphere
A comet's tail will always point towards the sun
False, away from the sun
____ is the amount of light or radiation reflected by a surface, typically of a planet or moon
Albedo
The closest star to earth besides our sun
Proxima Centauri
What is the name of a rock in outer space, going through our atmosphere, and when it hits the ground
Meteoroid, meteor, meteorite
The distance between the Earth and the Sun is call one....
au- astronomical unit
The outermost area of the sun's atmosphere is hotter than the first layer of the sun's atmosphere made of plasma and closer to the core.
True
Solar flares
This type of star is made up of just neutrons
Neutron Star
What is the asteroid belt at the edge of our solar system called?
Oort cloud
The moon's shadow on Earth is called
an umbra
A nebula is an organized system of millions or billions of stars
False, a nebula is a cloud of dust and gas
In the Moon's orbit around earth, the closest point is known as its _____, while the furthest point is called its _______.
Perigee, Apogee
A star much denser than our sun could be considered a....
White dwarf, neutron star,
These type of large rocks in space range in size from a few meters to over 680 mi. Not large enough to have a surface gravity to hold down an atmosphere, but enough to keep a small satellite of their own and exist as binary asteroids.
Minor planets
The term for same rotation and revolution rates is called
synchronous rotation