Einstein’s Mass-Energy Equivalence Relationship (HSC SSCE Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does Einstein's equation fundamentally reveal about mass and energy?
What does Einstein's equation fundamentally reveal about mass and energy?
They are the same thing in different forms
What is the relationship between a photon's energy and its momentum ?
What is the relationship between a photon's energy and its momentum ?
Which formula represents the rest energy of an object?
Which formula represents the rest energy of an object?
What is the rest energy of an electron in MeV?
What is the rest energy of an electron in MeV?
0.511 MeV
In nuclear fission, what happens to the mass defect?
In nuclear fission, what happens to the mass defect?
Converted to energy as kinetic & gamma rays
What process powers the Sun and other stars?
What process powers the Sun and other stars?
Nuclear fusion
How much mass does the Sun convert to energy each second?
How much mass does the Sun convert to energy each second?
About 4 million tonnes
What is the charge of a positron?
What is the charge of a positron?
+ C
What is produced when an electron and positron undergo pair annihilation?
What is produced when an electron and positron undergo pair annihilation?
Two gamma rays in opposite directions
Why do active tissues emit more gamma rays in PET scans?
Why do active tissues emit more gamma rays in PET scans?
They use more glucose with radioactive atoms