Nuclear Fusion (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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Nuclear fusion definition
Nuclear fusion definition
Two small nuclei collide & join to form a larger nucleus
Process in nuclear fusion
Process in nuclear fusion
Collide and join together (fuse)
Common example of fusion
Common example of fusion
Two types of hydrogen fuse to form helium
Mass change in fusion
Mass change in fusion
Larger nucleus has less mass than original two combined
What is mass converted to in fusion?
What is mass converted to in fusion?
Energy
Form of energy released in fusion
Form of energy released in fusion
Gamma rays
Conditions needed for fusion
Conditions needed for fusion
Very high temperatures and pressures
Why isn't fusion used to generate electricity?
Why isn't fusion used to generate electricity?
Reactors are very difficult and expensive to build
Natural fusion reactor example
Natural fusion reactor example
The sun
Fusion efficiency vs fission
Fusion efficiency vs fission
Much more efficient
Net positive energy from fusion on Earth achieved?
Net positive energy from fusion on Earth achieved?
No
What is produced in fusion?
What is produced in fusion?
Larger nucleus