Q15 · 2022 · Paper 1Simple familiar1 mark
QUESTION 15
An object’s velocity can only be measured relative to
(A)
a fixed reference frame.
(B)
the speed of light.
(C)
an object at rest.
(D)
an observer.
WORKED SOLUTION
1 markAnswer D
ANSWER
D
Worked solution
Velocity is always measured relative to an observer or reference frame; there is no absolute velocity. Option D.
Selects option D.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.