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Mechanics: Identify, describe and apply principles of mechanical energy

Unit 1: Introduction to mechanical energy

Linda Pretorius

Unit outcomes

By the end of this unit you will be able to:

  • Define mechanical energy.
  • Define kinetic energy.
  • Define gravitational potential energy.
  • Calculate kinetic energy (EK=12mv2).
  • Calculate gravitational potential energy (EP=mgh).

Introduction

In this unit[1] you will learn about two forms of mechanical energy, in other words energy an object has due to its position or movement. You will also understand how to calculate the amount of energy an object has at different times due to its position or movement.

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