- 1. What is the process that allows the sun to produce heat and light?
A) Physical Reactions
B) Nuclear Reactions
C) Solar Reactions
D) Lunar Reactions
- 2. Nuclear fusion reactions release __________.
A) space
B) water
C) energy
D) time
- 3. In one second, the sun emits more energy that humans use in __________ years.
A) 10,000
B) 1,000
C) 10
D) 100
- 4. The sun has been shining for how many years?
A) 4.6 Billion Years
B) 4 Billion Years
C) 72 Years
D) 5 Million Years
- 5. The sun is mainly composed of ________.
A) hyrdogen
B) copper
C) carbon dioxide
D) oxygen
- 6. What creates high pressure and high temperatures within the sun?
A) The outward push
B) The inward pull
- 7. True or false. A hydrogen atom contains a nucleus with a proton and an electron.
A) False
B) True
- 8. A gas that has electric charges is called __________. (This is the fourth state of matter.)
A) mixation
B) hydrogen
C) liquid
D) plasma
- 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) nuclear fission
B) nuclear fusion
C) lunar fisson
D) lunar fusion
- 11. At the Sun's center, the temperature is ________ million degrees Celsius.
A) 15.6
B) 16
C) 14.6
D) 15
- 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) physics
B) geography
C) biology
- 14. The energy released by the sun during nuclear fusion is _________.
A) radiation
B) deposition
C) mixing
D) radio
- 15. True or false. In an atom, protons that are the same will repel, or push away from each other.
A) True
B) False
- 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) turn to ice
C) melt
D) explode
- 17. The atoms in the sun ___________ against each other. This movement causes them to be excited.
A) spin
B) vibrate
C) swirl
D) crash
- 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) day
B) year
C) month
D) second
- 19. The sun emits _______ joules of radiant energy each day.
A) 3.4 times 10 to the 31
B) 3.3 times 10 to the 31
C) 19 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) three
B) nine
C) two
D) four
- 22. A positively charged nucleus is called an...
A) ion.
B) neon.
C) maxine.
D) iodine.
- 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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