Comparing motions of multiple objects

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Comparing motions of multiple objects - Slowing Down - Question 8

Four motion graphs and aliens. — (A) Modulus: moderate and low slopes, (B) Stas: Up, down, large up slopes, (C) Kinet: Up, down, low up, (D) Terek: Single up slope

Looking at the speed-time graphs of the four aliens:

Who shows the greatest rate of slowing down? (Be able to identify the time period during which the rate is the greatest.) A
B
C
D

Transcript / Long description

Representing Motion on Speed-Time Graphs – Comparing motions of multiple objects

Looking at the speed-time graphs of the four aliens, who shows the greatest rate of slowing down? (Be able to identify the time period during which the rate is the greatest.)

Feedback: Only Kinet and Stas did any slowing down during the motions. The best answer to the question would be Stas. The slope of Stas’ speed-time graph between 3 s and 4 s is steeper than the slope of Kinet’s speed-time graph between 3 s and 9 s.