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Physics - Secondary V Optional Program

Transformation of energy

Studying the transformation of energy gives students the opportunity to acquire scientific and technical knowledge of phenomena and applications1 in which energy is transformed.

Over the course of their secondary school education, students have explored increasingly complex phenomena, problems and applications. They have acquired knowledge related to The Material World, The Living World, The Earth and Space and the Technological World. By using the experimental method, modelling and carrying out analysis, they are able to describe, understand and explain the laws and models governing the transformation of energy. Students learn to apply this new knowledge in a variety of contexts to explain phenomena or make predictions. In this way, they acquire a better understanding of the transformations of energy in the world around us and of the related applications.

Student constructs knowledge with teacher guidance.
Student applies knowledge by the end of the school year.
 
Student reinvests knowledge.
 Secondary
AST AST
–
SE		 ST ST
–
EST		 PHY
3 4 3 4 5
Secondary Cycle One
    1. Light
        • Defines light as a form of radiant energy
    1. Energy transformations
        • Associates energy with radiation, heat or motion
        • Defines energy transformations
        • Identifies energy transformations in a technical object or technological system
Secondary Cycle Two
Only those concepts specific to the Physics program are identified by a number.
Light blue shading indicates that the student acquired this knowledge in Secondary III or IV.
    1. Forms of energy
        • Describes different forms of energy (chemical, thermal, mechanical, radiation)
      
        • Defines joule as the unit of measurement for energy
        
    1. Law of conservation of energy
        • Explains qualitatively the law of conservation of energy
      
        • Applies the law of conservation of energy in different contexts
      
    1. Energy efficiency
        • Defines the energy efficiency of a device or system as the proportion of energy consumed that is transformed into effective work (amount of useful energy / amount of energy consumed x 100)
      
    1. Relationship between work, force and distance travelled
     
        • Describes qualitatively the relationship between the work done, the force applied on a body and the distance travelled by the body
      
        • Applies the mathematical relationship between work, effective force and distance travelled (W = FΔd)
      
    1. Relationship between potential energy, mass, acceleration and distance travelled
        • Describes qualitatively the relationship between the potential energy of a body, its mass, its gravitational acceleration and the distance it travels
      
        • Applies the mathematical relationship between potential energy, mass, gravitational acceleration and the distance travelled (Ep = mgh)
      
    1. Relationship between kinetic energy, mass and speed
        • Describes qualitatively the relationship between the kinetic energy of a body, its mass and its speed
      
        • Applies the mathematical relationship between kinetic energy, mass and speed (Ek = ½mv2)
      
    1. Relationship between work and energy
        • Describes qualitatively the relationship between the work done on a body and the variation in energy within that body
      
        • Applies the mathematical relationship between work and energy (W = ΔE)
      
  1. Mechanical energy
    1. Explains qualitatively a transformation of mechanical energy in a given situation (e.g. a merry-go-round in motion)
        
    1. Applies the mathematical relationships associated with kinetic energy, types of potential energy (gravitational, elastic), work and heat
       
    1. Analyzes quantitatively a transformation of mechanical energy in a given situation
        
  1. Hooke’s Law
    1. Explains qualitatively the relationship between the energy of a helical spring, its force constant and the change in its length compared to its length at rest, in a given situation (e.g. the springs in a mattress)
        
    1. Applies the mathematical relationship between elastic potential energy, the force constant and the change in length in a given situation (E = ½kl2)
        
    1. Relationship between power and electrical energy
        • Describes qualitatively the relationship between the power of an electrical appliance, the electrical energy it consumes and the amount of time it is in operation
      
        • Applies the mathematical relationship between electrical energy consumed, the power of an electrical appliance and the amount of time it is in operation (E = PΔt)
      
  1. Relationship among power, work and time
    1. Explains qualitatively the relationship between the power of a system, the work done and the time taken to do the work
        
    1. Applies the mathematical relationship between power, work and time (P = W/Δt)
        
1.  “Application” is understood to mean a technical object, a system, a product or a process.

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