Nuclear Fission & Fusion (OCR GCSE Physics A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
ShowHide
Practise the questions
12 questions from this quiz
What happens during nuclear fission?
What happens during nuclear fission?
An unstable nucleus splits into pieces
How many neutrons are produced when nuclear fission occurs?
How many neutrons are produced when nuclear fission occurs?
Two or three
What is a chain reaction in nuclear fission?
What is a chain reaction in nuclear fission?
Neutrons cause more fission reactions
What form of energy is released besides kinetic energy in fission?
What form of energy is released besides kinetic energy in fission?
Gamma rays
What is the function of control rods in a nuclear reactor?
What is the function of control rods in a nuclear reactor?
They absorb neutrons
What happens when control rods are lowered into a reactor?
What happens when control rods are lowered into a reactor?
The chain reaction slows down
What happens during an uncontrolled chain reaction?
What happens during an uncontrolled chain reaction?
A huge amount of energy causes explosion
Is spontaneous fission common?
Is spontaneous fission common?
No, it is rare
What size are the two nuclei produced by fission?
What size are the two nuclei produced by fission?
Roughly equal in size
How is electricity generated in nuclear power stations?
How is electricity generated in nuclear power stations?
Gamma rays heat water to turn turbines
At what rate does an uncontrolled chain reaction increase?
At what rate does an uncontrolled chain reaction increase?
Exponential rate
Which element's nuclei are used in nuclear fission?
Which element's nuclei are used in nuclear fission?
Uranium