Question 1
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
1. Motion, forces and ene...
1.1. Physical quantities and measur...

Determine an average value for a small distance and for a short interval of time by measuring multiples (including the period of oscillation of a pendulum)

3. Waves
3.4. Sound

Describe a method involving a measurement of distance and time for determining the speed of sound in air