NS2 NJROTC EXAM The Sun
Sunspots have been known to last as long as_________________. - correct answer ✔✔A year and a half
Earth receives less than one billionth(1/2,000,000,000) of the Sun's energy. This remainder of the Sun's
energy___________. - correct answer ✔✔Is lost in space
Most of the world's energy needs are still being met with______________. - correct answer ✔✔water
power, coal, and petroleum
A tremendous source of environmentally friendly power that can satisfy the growing needs of all civilized
mankind, if it could be economically harnessed would be___________________. - correct answer
✔✔Solar Energy
There are huge numbers of charged particles which have been trapped by the Earth's magnetic field.
These particles circle the earth in four doughnut shaped regions. Two are? - correct answer ✔✔Inner
and outer van Allen radiation belts
The outer Van Allen radiation belts and the stable trapping region contains______________. - correct
answer ✔✔Lower energy particles
Developing ways to capture the Sun's energy is of great importance because______________. - correct
answer ✔✔The Earth will eventually run out of coal and petroleum
The Sun´s gravitational attraction is 270 times that of Earth; if possible a 100 pound keg of nails would
weigh how many pounds on the Sun? - correct answer ✔✔27000
Sunspots are visible because______________________. - correct answer ✔✔As they cool they appear
darker than the hotter environment behind them.
Sunspots have been known to last as long as_________________. - correct answer ✔✔A year and a half
Earth receives less than one billionth(1/2,000,000,000) of the Sun's energy. This remainder of the Sun's
energy___________. - correct answer ✔✔Is lost in space
Most of the world's energy needs are still being met with______________. - correct answer ✔✔water
power, coal, and petroleum
A tremendous source of environmentally friendly power that can satisfy the growing needs of all civilized
mankind, if it could be economically harnessed would be___________________. - correct answer
✔✔Solar Energy
There are huge numbers of charged particles which have been trapped by the Earth's magnetic field.
These particles circle the earth in four doughnut shaped regions. Two are? - correct answer ✔✔Inner
and outer van Allen radiation belts
The outer Van Allen radiation belts and the stable trapping region contains______________. - correct
answer ✔✔Lower energy particles
Developing ways to capture the Sun's energy is of great importance because______________. - correct
answer ✔✔The Earth will eventually run out of coal and petroleum
The Sun´s gravitational attraction is 270 times that of Earth; if possible a 100 pound keg of nails would
weigh how many pounds on the Sun? - correct answer ✔✔27000
Sunspots are visible because______________________. - correct answer ✔✔As they cool they appear
darker than the hotter environment behind them.
