Nuclear Fusion Flashcards
1
Q
What is nuclear fusion?
A
Joining of two protons to form helium
2
Q
What is the ‘equation’ for nuclear fusion?
A
Proton + Proton = Helium (+Energy)
3
Q
What charge do protons have?
A
Positive / +1
4
Q
Forces on a star are…
A
balanced
5
Q
What is needed for the joining of two protons to happen?
A
A large force
6
Q
What is a nebula?
A
A cloud of hydrogen + helium
7
Q
Clouds of hydrogen and helium make…
A
stars
8
Q
What percentage of hydrogen and helium is in a star?
A
70% hydrogen
28% helium
9
Q
The sun and stars use nuclear fusion to…
A
release energy
10
Q
What is the last element a star gets to?
A
Iron / Fe
11
Q
What is a supernova?
A
An explosion
12
Q
What is a black hole?
A
The last stage of a giant star
13
Q
A heavier element than iron is formed in…
A
supernovas
