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Science study cards1
Physical science
| Question | Answer |
|---|---|
| What is another word for nuclear radiation? | Radioactivity |
| Who created the word for Radioactivity? | Marie Curie |
| What happens in radioactive decay? | Unstable particles give of other particles and energy |
| What is Alpha decay? | When a particle gives of helium, which has a mass number of 4. It has the least penetrating ability, has the most mass, but is the dangerest |
| What is the mass number of a particle? | The sum of protons and neutrons in a nucleas |
| What is a beta molecule and what are it's properties? | When a unstable nucleas loses electrons. It has the 2nd most penetrating ability and the least dangerest |
| What is the process of nuclear fission? | It starts by a neutron stricking the unstable element dividing it into two different elements with all new properties, then the loose neutrons of thoseatoms start a chain reaction. |
| What are the pros and cons of nuclear fission? | Pros: Cleaner, more independant and cheaper fuel Cons: Dangereous, expensive, waste |
| What is a gamma particle? | Pure energy given of by movement in the element. Most penetrating ability, 2nd dangerest |
| What is nuclear fusion | The joining of two helium atoms to make hydrogen |
| What are the pros and cons of nuclear fusion? | Pros: Cleanest, most common and natural fuel with no waste Cons: The process is too hot for earth and costs more than the result |
Created by:
whitecatdaddy
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