Q12 · 2023 · Paper 1Simple familiar1 mark
QUESTION 12
What is a consequence of symmetry in particle interactions?
(A)
The law of conservation of momentum is obeyed.
(B)
Charges on particles will always be different.
(C)
Antiparticles travel backwards through time.
(D)
Total mass of the particles will decrease.
WORKED SOLUTION
1 markAnswer A
ANSWER
A
Worked solution
Symmetries of physical interactions are associated with conservation laws; conservation of momentum is one such consequence. Option A.
Selects option A.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.