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IB Physics HL A.1.7 Uniform versus non-uniform acceleration and resistance Question Bank

Practise IB Physics HL A.1.7 by analysing variable acceleration caused by resistance or a changing gravitational field.

Syllabus
First assessment 2025
Course
Physics HL
Level
HL

Exam points

  • Analyse how a speed-dependent resistive force changes acceleration during a motion.
  • Use a graph to predict displacement or velocity when acceleration varies with time or position.
  • Evaluate a constant-acceleration approximation and state when it breaks down.

A.1.7—Uniform vs non-uniform acceleration question 1

[Maximum number: 2]

This question is about the motion of a ship and observing objects from it.

The ship's engines are switched off and the ship comes to rest from a speed of 7 m s−17 \mathrm{~m} \mathrm{~s}^{-1} in a time of 650 s .

It is unlikely that the acceleration of the ship will be uniform given that the resistive force acting on the ship depends on the speed of the ship. Using the axes, sketch a graph to show how the speed v varies with time t after the ship's engines are switched off.

Figure for Question A.1.7—Uniform vs non-uniform acceleration question 1 — IB Physics HL
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