Download Space Test: Practice Questions and Answers 1. Who discovered

Space Test: Practice Questions and Answers 1. Who discovered cosmic background radiation a. The muppets b. Penzias and Wilson c. Einstein d. Sir Isaac Newton 2. Which stars expand to red giants? a. Red stars b. Blue stars c. Stars less than 0.4 solar masses d. Stars greater than 0.4 solar masses 3. What type of galaxy is the Milky Way? a. Barred spiral b. Spiral c. Elliptical d. Irregular 4. Which two planets do not have moons? a. Mercury and Venus b. Venus and mars c. Neptune and Uranus d. Venus and Neptune 5. Our sun will expand to a a. Supergiant b. Red Giant c. Main sequence star 6. Galaxies began as a. Stars b. Planets c. Nebulas d. Lights 7. Only gas giants can have a. Moons b. Rings c. Asteroids d. Gravity 8. Cosmic Background Radiation comes from: a. Dead stars b. Big bang c. The sun d. New stars 9. The Doppler effect changes frequency in a a. Light wave b. Sound wave c. None of these d. Both a & b Space Test: Practice Questions and Answers 10. All main sequence stars _________ hydrogen and helium in their core a. Burn b. Fuse c. Vaporize d. Crush 11. The terrestrial planets are a. Venus, mars, earth b. Jupiter, Saturn, Uranus, Neptune c. Only in terrestrial solar systems d. Not real 12. _____________ contracts the gases at the center a. fusion b. hydrogen and helium c. gravity d. all of the above 13. When the iron core of a star ultimately collapses, it triggers a… a. White dwarf b. Black dwarf c. Black hole d. Supernova 14. What compresses gases in a nebula to form a star a. Solar wind b. Shockwave c. Light waves 15. In protostars, hydrogen fusion has already started a. True b. False 16. What force spins and flattens the disk after grave contracts a nebula to form a protostar? a. Doppler effect b. Red shift c. Angular momentum d. Love 17. Which way will a spectrum shift if the star is moving away from you? a. Towards red b. Towards purple c. Towards black d. Toward pink 18. What element is fused to form helium? a. Iron b. Zinc c. Carbon d. Hydrogen Space Test: Practice Questions and Answers 19. How are the surfaces of early planets heated? a. Asteroids b. Volcanoes c. The sun d. Solar flares 20. In redshift, the light’s wavelength… a. Get bigger b. Gets smaller c. Doesn’t change d. Goes away completely 21. Why could the big bang explode faster than the speed of light? Because the speed of matter is limited to the speed of light, but much of the Big Bang was empty space, which does not have this limitation because it isn’t matter. 22. What happens when a star runs out of hydrogen for fusion? It begins to fuse helium to form heavier elements like carbon and oxygen. 23. What is the first stage of a star after a nebula? A protostar is the first stage after a nebula. In a protostar hydrogen fusion has not yet started. 24. Describe the steady state theory? How was it different than the theory of the big bang? The Steady State Theory believed that the universe doesn’t change with time. However, more matter is added as it expands. It also stated that the universe had not beginning or end. In Big Bang theory the universe had a beginning and will have an end. It began as a singularity that exploded in an ever-­‐
expanding cloud. Parts of this cloud formed galaxies and what we see today. 25. What evidence is there for the big bang? Cosmic background radiation is still observable from the big bang. Red shift also shows that other things in the galaxy are moving away from us. This is inline with the idea that the universe is expanding.