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- 1. Multiple ChoiceStars are formed from big clouds of gas and dust is known as a ______.clouds grandeBCOG'sneutron cloudsnebulae
- 2. Multiple ChoiceThe only force acting on the nebulae is ________.thermalsingulargravitymicroscopic
- 3. Multiple ChoiceA star is born when ________________ begins to happen.nuclear fusionnuclear abrasioncryingnuclear fission
- 4. Multiple ChoiceLarger, cooler stars are called ___________.Blue GiantsWhite DwarfsRed GiantsYellow Giants
- 5. Multiple ChoiceThe core of a Red Giant collapses and becomes a ___________________.White DwarfBlue SupergiantRed SupergiantBlack Hole
- 6. Multiple ChoiceOne possible outcome that is left after a supernova is a super dense core called a _____________.neutron starYellow StarRed GiantBlack Dwarf
- 7. Multiple ChoiceA nebula is:A cloud of iceA cloud of dust and gasA cloud of just gasA cloud of just dust
- 8. Multiple ChoiceThe most abundant gases in a nebula are:Hydrogen & OxygenNitrogen & OxygenHydrogen & HeliumOxygen & Helium
- 9. Multiple ChoiceA nebula starts to collapse because of:A nearby star shining it's lightA passing spaceshipA passing cometGravity
- 10. Multiple ChoiceAs a nebula collapses it also begins:ExpandRotateShakeTurn to ice
- 11. Multiple Choice
What happens during nuclear fusion in the sun?
oxygen nuclei combine to form helium
Helium nuclei combine to form oxygen
helium nuclei combine to form hydrogen
hydrogen nuclei combine to form helium
- 12. Multiple Choice
a gigantic explosion that causes the death of a large star
pulsar
red giant
supernova
black hole
- 13. Multiple Choice
Why won't our sun ever become a black hole?
It is too massive
It is too old
It is too young
It is too small
- 14. Multiple Choice
A light-year is:
A measurement of time.
A measurement of distance.
- 15. Multiple Choice
What is a light year?
A length in time.
How far light travels in a year.
How long it takes light to die out.
How long until a light ray turns into a gamma ray.
- 16. Multiple Choice______ is a force that causes dust particles to stick together in a nebula.nuclear fusiongravityhydrogenfriction
- 17. Multiple ChoiceA ________ is an object so dense with so much gravity that even light cannot escape.neutron starwhite dwarfblackholeblack dwarf
- 18. Multiple Choice
When nebula is big and hot enough is collapses on itself and ...................... is made
white dwarf
supernova
protostar
planetary nebula
- 19. Multiple ChoiceA collection of stars, dust, and gas bound together by gravity is...UniverseSolar SystemPlanetGalaxy
- 20. Multiple ChoiceThe sun and all of the planets and other bodies that travel around it make up our...GalaxySolar SystemClusterConstellation
- 21. Multiple ChoiceWhich of these stars is hottest?Red StarYellow StarOrange StarBlue Star
- 22. Multiple ChoiceCompared to the rest of the stars, our sun is considered...Extremely large and coldSmall with a medium temperatureMedium size with medium temperatureLarge and hot
- 23. Multiple ChoiceWhat color is our star?redbluewhiteyellow
- 24. Multiple ChoiceIf light takes 7 years to travel from Earth to Star X how far is Star x from Earth?9.5 trillion km7 light yearsCan't determine from the given information7 km
- 25. Multiple ChoiceWhat does luminosity mean?BrightnessTemperatureColorDistance
- Answer choicesTagsAnswer choicesTags