Q10 · 2021 · Paper 1Simple familiar1 mark
QUESTION 10
Proper length is the length measured in the frame of reference where the object is
(A)
at rest.
(B)
in motion.
(C)
accelerating.
(D)
in motion but not accelerating.
WORKED SOLUTION
1 markAnswer A
ANSWER
A
Worked solution
Proper length is measured in the rest frame of the object. Option A.
Selects option A.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.