FA1 · Q2 · A.1 Kinematics · free fall; Tool 3 · reading measurements
Q2: finding g from a multi-flash photograph
Read positions off the photograph, turn them into distances fallen since release, and calculate g from s = ½gt².
SL+HLMedium10 minFree
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Experiment questions reward method, not memory: which readings, which subtraction, which rearrangement. This walkthrough shows each decision, from the ruler to g.
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Check 1 of 2
A ball is released at the 5.0 cm mark. At t = 0.20 s it is at 24.5 cm. The distance s to use in s = ½gt² is…
Check 2 of 2
From s = ½gt², g equals…