1. What kind of fusion was said by some scientists to have occurred in low temperatures?
- Who snows? (this is why we can't have nice things)
- Cold fusion
- No heat fusion
- Ice fusion
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Other questions in this quiz
2. How are chain reactions controlled?
- we don't know how to control a hypothetical chain reaction yet
- use a different material to absorb neutrons,slwoing the recation down as there are fewer neutrons to stimulate more fission recations
- nuclei are kept stable
3. What's a chain reaction?
- when in a fission reaction nuclei are formed, the energy released stimulates other nuclei to undergo a fission reaction
- I can't see a link to physics
- when in a fission reaction nuclei are formed, neutrons released in the reaction undergo fission
- when in a fission reaction the nucleus is formed, it splits and comes back together again
4. In 1989 scientists said they made fusion happen at 50 degrees celsius. Why?
- because the experiment took place in space
- 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 at the bottom of the ocean
5. Why is fusion difficult?
- 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
- Trick question!
- Because scientists haven't yet figured out how it works
- 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