- 1. What is the process that allows the sun to produce heat and light?
A) Solar Reactions
B) Physical Reactions
C) Nuclear Reactions
D) Lunar Reactions
- 2. Nuclear fusion reactions release __________.
A) time
B) energy
C) space
D) water
- 3. In one second, the sun emits more energy that humans use in __________ years.
A) 10
B) 100
C) 1,000
D) 10,000
- 4. The sun has been shining for how many years?
A) 5 Million Years
B) 4.6 Billion Years
C) 72 Years
D) 4 Billion Years
- 5. The sun is mainly composed of ________.
A) copper
B) oxygen
C) carbon dioxide
D) hyrdogen
- 6. What creates high pressure and high temperatures within the sun?
A) The inward pull
B) The outward push
- 7. True or false. A hydrogen atom contains a nucleus with a proton and an electron.
A) True
B) False
- 8. A gas that has electric charges is called __________. (This is the fourth state of matter.)
A) plasma
B) hydrogen
C) liquid
D) mixation
- 9. True or false. The four states of matter are gas, liquid, solid, and plasma.
A) False
B) True
- 10. The separation of hydrogen makes _____________ in the Sun's core.
A) lunar fusion
B) nuclear fusion
C) nuclear fission
D) lunar fisson
- 11. At the Sun's center, the temperature is ________ million degrees Celsius.
A) 15.6
B) 15
C) 16
D) 14.6
- 12. True or false. The sun is more dense than solid lead metal.
A) False
B) True
- 13. Albert Einstein was an important physicist. Einstein studied __________.
A) biology
B) geography
C) physics
- 14. The energy released by the sun during nuclear fusion is _________.
A) radio
B) deposition
C) radiation
D) mixing
- 15. True or false. In an atom, protons that are the same will repel, or push away from each other.
A) False
B) True
- 16. The nuclear reactions that are occurring in the sun are very powerful. If these reactions were much quicker, the sun would _________.
A) stop spinning
B) melt
C) explode
D) turn to ice
- 17. The atoms in the sun ___________ against each other. This movement causes them to be excited.
A) swirl
B) spin
C) crash
D) vibrate
- 18. The amount of solar energy intercepted by the Earth in one minute is approximately equal to the total electrical energy artificially generated on Earth in one __________.
A) year
B) day
C) month
D) second
- 19. The sun emits _______ joules of radiant energy each day.
A) 3.4 times 10 to the 31
B) 19 times 10 to the 31
C) 3.3 times 10 to the 31
- 20. True or false. The radiant energy reaching the Earth is more than what is used by the entire Earth's population.
A) False
B) True
- 21. On a house that is run by solar energy, you would need ________ days of sunny weather to run your house for an entire month.
A) nine
B) two
C) four
D) three
- 22. A positively charged nucleus is called an...
A) iodine.
B) ion.
C) neon.
D) maxine.
- 23. True or false. The sun radiates energy in all directions because it is shaped like a sphere.
A) True
B) False
- 24. Absorption bands happen when wavelengths are _______ in the atmosphere.
A) mixed up
B) listened to
C) absorbed
D) moved
- 25. True or false. You are learning about lunar energy.
A) True
B) False
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