O-LevelPhysicsKinematics5054/11 · Oct/Nov 2012 · Q41 Mark

A car is stationary at a set of traffic lights. When the lights turn green, the car begins to move and continues to speed up until it reaches the maximum speed allowed. It continues to travel at this constant speed for the rest of the journey. What happens to the acceleration and to the velocity of the car during this journey?

ABoth the acceleration and the velocity change.

BOnly the acceleration changes.

COnly the velocity changes.

DNeither the acceleration nor the velocity changes.

✓ Correct answer

A: Both the acceleration and the velocity change.

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Topic: Kinematics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2012 Paper 1 Variant 1, question 4.

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