Physics Tutorial 3.13 - Relative Motion

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There are 7 lessons in this physics tutorial covering Relative Motion. The tutorial starts with an introduction to Relative Motion and is then followed with a list of the separate lessons, the tutorial is designed to be read in order but you can skip to a specific lesson or return to recover a specific physics lesson as required to build your physics knowledge of Relative Motion. you can access all the lessons from this tutorial below.

In this Physics tutorial, you will learn:

  • The meaning of relative motion
  • How does the movement of reference frame affects the motion of an object?
  • How do the kinematic quantities change during the relative motion?
  • How to calculate the position of objects in different situations during a relative motion?


1. Suppose you are lying on your bed. Do you think you are completely at rest or you are moving in any way? Explain your opinion.

2. You are driving along a straight road. The sideways trees look moving in the opposite direction of you. Are the trees really moving? Explain your opinion again.

3. When you look the Sun, it does not seem to be at the same position it was one or two hours ago. Does the Sun really move or maybe something else happens instead? Explain your opinion.

Please select a specific "Relative Motion" lesson from the table below, review the video tutorial, print the revision notes or use the practice question to improve your knowledge of this physics topic.

Kinematics Learning Material
Tutorial IDPhysics Tutorial TitleTutorialVideo
3.13Relative Motion
Lesson IDPhysics Lesson TitleLessonVideo
3.13.1What is Relative Motion?
3.13.2Case 1 - Reference frame is at rest and the object is moving at constant velocity
3.13.3Case 2 - Reference frame is moving at constant velocity and the object is at rest
3.13.4Case 3 - Reference frame is moving at constant velocity and the object is moving at constant velocity
3.13.5Case 4 - Reference point is at rest and the object is moving at constant acceleration
3.13.6Case 5 - Reference point is moving at constant velocity and the object is moving at constant acceleration
3.13.7Case 6 - Both the object and the reference frame are moving at constant acceleration

Whats next?

Enjoy the "Relative Motion" physics tutorial? People who liked the "Relative Motion" tutorial found the following resources useful:

  1. Physics tutorial Feedback. Helps other - Leave a rating for this tutorial (see below)
  2. Kinematics Revision Notes: Relative Motion. Print the notes so you can revise the key points covered in the physics tutorial for Relative Motion
  3. Kinematics Practice Questions: Relative Motion. Test and improve your knowledge of Relative Motion with example questins and answers
  4. Check your calculations for Kinematics questions with our excellent Kinematics calculators which contain full equations and calculations clearly displayed line by line. See the Kinematics Calculators by iCalculator™ below.
  5. Continuing learning kinematics - read our next physics tutorial: Motion. Types of Motion

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