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SingaporePhysicsQuick questions
Measurement and Kinematics
Quick questions on Motion graphs and free fall explained: O-Level Physics
6short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are distance-time graphs?Show answer
On a distance-time graph the gradient is the speed.
What are velocity-time graphs?Show answer
On a velocity-time graph two things have meaning. The gradient is the acceleration, and the area under the line is the distance travelled.
What is free fall?Show answer
Free fall is motion under gravity alone, with no air resistance. Near the Earth's surface every object in free fall has the same acceleration, the acceleration of free fall:
What is q1?Show answer
State what the gradient of a distance-time graph represents and what the area under a velocity-time graph represents. [2 marks]
What is q2?Show answer
A stone is dropped from rest. Using , find its speed after . [2 marks]
What is q3?Show answer
Explain why a falling object reaches a terminal velocity rather than speeding up forever. [3 marks]
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