Work and Mechanical Energy

Work and Mechanical Energy

Work and Mechanical Energy


Language: english

Note: 0/5 (0 notes) 142 students  New course 

Instructor(s): Ifeoluwa Tejumola(JayScience)

Last update: 2022-09-11

What you’ll learn

  • Examine the relationship between work done and mechanical energy and how it relates to the world around us.
  • Define what work done is, the operation of its parameters, its units and use them in creating solutions to physics related problems
  • Explain cases where work seems to be done but in actual fact it is zero.
  • Solve problem analysis on the subject of work and attempt the multiple choice questions to apply the principles you have learnt



  • Basic Mathematical Knowledge
  • Scientific Calculators
  • Basic Background in Junior Science



Energy is a vital part of the daily routines of humans.  Getting up from bed, taking a cup of coffee, going for a walk with your pet and a couple of other activities you engage in during the day shows us of how energy is needed to drive our daily  enterprise. As you might know that there are quite a number of energy types(gravitational potential, elastic, kinetic, potential etc) which in physics and as well as this course are classified under Mechanical Energy i.e the energy resident in object by virtue of their position or motion. As consequent to the previous statement we see mechanical energy in action whenever we carry out activities which is termed Work to a non-physicists. However, the Physics ideology is not in total agreement with the latter stating cases where work is assumed to be done and well in physics, it isn’t. Three of those cases are stated in the third section with relatable examples.

In-addition, a more definite way of quantifying the amount of work done is treated in mid-section of the course with questions relevant to the application of the principles guiding force-displacement graphs. This course  examines the link between the concept of work and mechanical energy as they are one of the key concepts in physics. Review questions which intend to test your knowledge on what you’ve learnt in each section is included. The GCSE and IGCSE Curriculum drives the major discussion through-out each section. 


Who this course is for

  • GCSE and IGCSE Students
  • Beginner physicists curious about knowledge
  • Science Teachers that need a structured and detailed guide on Work and Mechanical Energy
  • O-level students under any examination body


Course content

  • Introduction
    • Course Outline
    • Introduction to Work and Mechanical Energy
    • Energy Classifications
    • Mechanical Energy Concept
    • Volcanoes and Energy
    • Test your knowledge
  • The Definition of Work
    • Defining Work
    • Unit Analysis
    • Problem analysis 1
    • Problem analysis 2
    • Test your knowledge
  • When work is not done
    • Case 1
    • Case 2
    • Case 3
    • Making Decisions about Work Done
    • Problem analysis 3
    • Test your knowledge
  • Force – Displacement Graph
    • What Force-Displacement Graph is
    • When Force is Constant
    • When force increases linearly
    • Triangular Force – Displacement Graph
    • Rectangular Force-Displacement Graph
    • Average Force Method
    • Semicircular Force – Displacement Graph
    • Real-life Situations
  • Angular Force
    • Constant Force at an Angle
    • Guide
    • Work Equation in angular cases
    • Test your knowledge
    • Multiple Choice
  • Types of Work
    • Introduction to Work types
    • Negative Work
    • Positive Work
    • Problem Analysis 4
    • Multiple Choice


Work and Mechanical EnergyWork and Mechanical Energy


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