A collection of stars, dust, and gases bound together by gravity
What is galaxy
100
The force that opposes the motion of objects through air
What is air resistance
100
A quantity defined as the product of the mass and velocity of an object
What is momentum
100
What is terminal velocity
What is the constant velocity of a falling object when the force of air resistance is equal in magnitude and opposite in direction to the force of gravity
100
The motion of a body when only the force of gravity is acting on the body
What is free fall
200
What is projectile motion
What is the curved path that an object follows when thrown, launched, or otherwise projected near the surface
200
The distance that light travels in one year
What is light year
200
What is parallax
What is a stars apparent position
200
What is a nebula
What is a large cloud of dust and gas in interstellar space
200
What is a pulsar
What is when a neutron star is spinning
300
The band of color produced when white light passes through a prism
What is spectrum
300
What is the Big Bang theory
What is the theory that states the universe began with a big bang
300
A large red star late in its life cycle
What is red giant
300
Where do white dwarfs lie on the HR diagram
What is bottom left
300
What is a black hole
What is an object so massive light cannot escape its gravity
400
What is the main sequence
What is a series of star types to which most stars belong, represented on a Hertzsprung–Russell diagram as a continuous band extending from the upper left (hot, bright stars) to the lower right (cool, dim stars).
400
A group of stars that are close together
What is open cluster
400
A tight group of stars that looks like a ball
What is globular cluster
400
What are the three types of galaxies
What is spiral, elliptical, and irregular
400
What are the meanings if the positive and negative magnitudes of a star
What is + means the dimmer the star, - means the brighter the star
500
What is Newton's second law
What is the acceleration of an object depends on the mass of an object and the amount of force applied
500
All objects accelerate towards earth at a rate of ___.___ m/s per second
What is 9.8 m/s
500
A graph of the absolute magnitude of stars plotted against their surface temperature or color, used in the study of stellar evolution.
What is HR diagram
500
The highest point above the observer's horizon attained by a celestial body.