Section outline

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    • Why is an understanding of mechanics necessary?

        • Many renewable energy conversion devices (such as wind turbines) are a complex arrangement of moving masses. In order to understand and analyse their behaviour, it is necessary to use the principles of mechanics.
        • Renewable Energy devices convert one type of energy into another type (usually electricity). It is therefore essential to have a good understanding of work, power, energy and conversion efficiency.

      Study tips

      This unit consists of a series of compact study notes and self-test questions. You are recommended to study the unit in the following sequence:

        1. Tackle the pre-test questions, where available, to gauge your prior knowledge. This will indicate whether you need to concentrate on a particular unit.
        2. From the "Syllabus" page, work through the study notes sequentially. Make sure that you understand any worked examples.
        3. Where available, you may wish to tackle the self-test questions as they occur in the sequence. If you encounter difficulties, return to the study notes and focus on the relevant topics before re-visiting the self-test.

      Objectives

      After completing this topic, you should understand:

        • The concepts of mass, force, velocity and acceleration and the use of vectors.
        • The behaviour of bodies in linear and angular motion.
        • The important concepts of work, power and energy.

    • Pre-test Quiz



    • At the end of this section you should understand the concepts of velocity, speed and acceleration. You should also be able to solve problems involving:

        • Linear motion.
        • Angular motion.
        • Circular motion.
    • Mechanics 1 Velocity and Acceleration SCORM package
    • Velocity and Acceleration File
    • Section A: Velocity and Acceleration Quiz



    • At the end of this section you should understand the relationship between mass, force and acceleration. And be able to solve problems using:

        • Newton's 1st law of motion.
        • Newton's 2nd law of motion (in terms of F = ma)
        • Newton's 3rd law of motion.
    • Mechanics 2, Mass, Force and Acceleration SCORM package
    • Mass, Force and Acceleration File
    • Mechanics 3, Work, Power and Energy SCORM package
    • Section B: Mass, Force and Acceleration Quiz



    • At the end of this section you should understand the concepts of:

        • Work, energy and power.
        • Conservation of Energy.
        • Moment, couple and torque.

      and sucessfully complete calculations using these concepts.

    • Work, Power and Energy File
    • Normal Stress, Shearing Stress and Bending Moment File
    • Section C Quiz
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