Nuclear reactions- fission, fusion and chain reactions.

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1. What kind of fusion was said by some scientists to have occurred in low temperatures?

  • Cold fusion
  • Who snows? (this is why we can't have nice things)
  • Ice fusion
  • No heat fusion
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Other questions in this quiz

2. In 1989 scientists said they made fusion happen at 50 degrees celsius. Why?

  • other
  • because the experiment took place at the bottom of the ocean
  • there isn't any proof they did, so their experiments aren't valid. They could've lied or pulled of something really amazing but we'll never know.
  • because the experiment took place in space

3. Why is fusion difficult?

  • Nuclei may blow up if they get to the correct heat and pressure for fusion,so there is a low chance of them being able to fuse
  • Nuclei have to be really close before it occurs, and as unless really high temperatures and pressures are reached to overcome this, the positive charges repel one another
  • Because scientists haven't yet figured out how it works
  • Trick question!

4. Fusion occurs when-

  • you mess around injecting things with odd stuff you probably shouldn't even be near
  • small nuclei join to make large ones
  • one big nuclei splits to form two daughter nuclei
  • pigs fly,it's not happened yet

5. Why isn't fusion a casual source of energy?

  • It's only a hypothetical idea
  • To produce the correct heat and pressure needed for fusion on Earth, it uses more energy than it makes
  • It can currently occur in space only and can't be taken to Earth
  • Because it doesn't produce any

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