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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Demonstrate an understanding of the principles of work, energy and power in physics 
SAQA US ID UNIT STANDARD TITLE
244097  Demonstrate an understanding of the principles of work, energy and power in physics 
ORIGINATOR
Chemical Industries SGB 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Engineering and Related Design 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 4  NQF Level 04 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Reregistered  2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
Learners who demonstrate competence as described in the outcomes of this unit standard will be able to understand thermal energy principles and its application in the process industry.

The qualifying learner is able to:
  • Demonstrate an understanding of the concepts of momentum and impulse.
  • Demonstrate an understanding of work, energy and power.
  • Demonstrate an understanding of statics.
  • Demonstrate an understanding of centre of gravity and centroids. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    National Certificate Chemical Operations NQF Level 3 or equivalent, including communication, mathematical literacy and physics at NQF Level 3. 

    UNIT STANDARD RANGE 
    The typical context of this unit standard includes any processing environment, for example chemical-, minerals- or beverage processing.

    Range statements, which are applicable to the unit standard titles, specific outcomes and assessment criteria, are included in the applicable assessment criteria. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Demonstrate an understanding of the concepts of momentum and impulse. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The concepts momentum and impulse are defined and explained in scientific terms. 

    ASSESSMENT CRITERION 2 
    Change in momentum of a single body is determined by performing calculations. 

    ASSESSMENT CRITERION 3 
    The law of conservation of linear momentum is defined and explained in scientific terms using examples from industry. 

    ASSESSMENT CRITERION 4 
    Velocities of two bodies are calculated after an impact for bodies remaining together and for elastic bodies. 

    ASSESSMENT CRITERION 5 
    Impulse and force is calculated from a change of momentum information. 

    SPECIFIC OUTCOME 2 
    Demonstrate an understanding of work, energy and power. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The concepts, interrelationships and measurement units of work, energy and power are defined and explained in scientific terms. 

    ASSESSMENT CRITERION 2 
    Various force, work, power and efficiency calculations relevant to linear movement are performed in accordance with specific requirements. 

    ASSESSMENT CRITERION 3 
    The law of conservation of energy is defined and explained in scientific terms. 

    ASSESSMENT CRITERION 4 
    Kinetic and potential energy calculations are performed as applicable to the processing industry. 

    ASSESSMENT CRITERION 5 
    The importance of using renewable vs. non-renewable energy sources are discussed using relevant examples from industry. 

    SPECIFIC OUTCOME 3 
    Demonstrate an understanding of levers, moments and beams. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The concepts of levers, moments and beams are defined and explained in scientific terms. 

    ASSESSMENT CRITERION 2 
    The law of moments is defined and explained in scientific terms. 

    ASSESSMENT CRITERION 3 
    Representations of shearing force and bending moment diagrams are made using freehand sketches and calculations. 

    ASSESSMENT CRITERION 4 
    Reactions at the supports of beams are calculated for vertical point loads and evenly distributed loads. 

    ASSESSMENT CRITERION 5 
    Shear force and bending moment diagrams are drawn for simply supported beams. 

    ASSESSMENT CRITERION 6 
    The positions and magnitude of maximum bending moments are determined through calculations and sketches. 

    SPECIFIC OUTCOME 4 
    Demonstrate an understanding of centre of gravity and centroids. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The concepts of centroids and centre of gravity are defined and explained in scientific terms. 

    ASSESSMENT CRITERION 2 
    Positions of centroids for irregular forms are determined by breaking down irregular forms into usable forms. 

    ASSESSMENT CRITERION 3 
    Positions of centroids for regular forms are calculated using freehand sketches and area formulas. 

    ASSESSMENT CRITERION 4 
    Positions of centre of gravity for regular forms are determined using calculations and sketches. 

    ASSESSMENT CRITERION 5 
    The concepts stable, unstable and neutral equilibrium are defined and explained in scientific terms. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • An assessor, accredited with a relevant NQF 3 Level or higher qualification, will assess the learner's competency.
  • Anyone assessing a learner or moderating the assessment of a learner against this Qualification must be registered as an assessor with the relevant ETQA. 

  • UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Embedded knowledge is reflected within the assessment criteria of each specific outcome. 

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems in the following areas, which response displays that responsible decisions, using critical and creative thinking, have been made:
  • Energy conservation opportunities are identified.
  • The correlation between different temperature scales is correctly interpreted.
  • Relevant examples of process applications are identified.

    Refer to all Specific Outcomes. 

  • UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team, group, organisation or community by:
  • Maintaining sound relations with co-workers/learners.

    Refer to all Specific Outcomes. 

  • UNIT STANDARD CCFO ORGANISING 
    The learner is able to organise and manage himself and his activities responsibly and effectively:
  • Scientific concepts are systematically organised.

    Refer to all Specific Outcomes. 

  • UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information by:
  • Displaying a logical framework of physics models and principles.
  • Obtaining process industry examples.

    Refer to all Specific Outcomes. 

  • UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively by using mathematical and/or language skills in the modes of oral and/or written presentations during:
  • Use of scientific terminology.
  • Explanation of laws and principles of physics.

    Refer to all Specific Outcomes. 

  • UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically, showing responsibility towards the environment and health of others.

    Refer to all Specific Outcomes. 

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems. This is evident in:
  • Interpreting fundamental physics principles in terms of the process industry applications.
  • Incorporating environmental principles in point of view.

    Refer to all Specific Outcomes. 

  • UNIT STANDARD CCFO CONTRIBUTING 
    Contribute to the full personal development of each learner and the social and economic development of the society at large:
  • Opportunities to conserve energy at home are identified.

    Refer to the following Specific Outcome/s:
  • Demonstrate an understanding of the concepts of momentum and impulse. 

  • UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    N/A 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  78529   Further Education and Training Certificate: Chemical Operations  Level 4  NQF Level 04  Reregistered  2021-06-30  As per Learning Programmes recorded against this Qual 
    Elective  61949   Further Education and Training Certificate: Pulp and Paper Operations  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered" 
    2015-06-30  FPMSETA 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    1. MPACT 
    2. SAPPI LTD 



    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.