Section: Module 6: Work & Energy | Eswatini Grade 8 Science | NJCTL

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Module 6: Work & Energy

  • Module 6: Work & Energy


    In this module we will learn about work and energy.  


    Watch the videos and complete the check your understanding questions before moving on to the module assignments. Practice problems are not graded but should be completed to facilitate your learning. 

     

     


    1. State that work is done when a force moves an object in the direction of the force.
    2. Calculate work done, using the equation W= Fx d, and state the unit as the joule(J).
    3. Define energy as the ability to do work.
    4. State examples of energy in different forms and their conversion.
    5. Describe the energy of motion (kinetic) and energy of position relative to ground (gravitational potential).
    6. State the law of energy conservation as; energy is neither created nor destroyed.
    7. State some renewable sources of energy (biomass, solar, wind, waves, water).
    8. Describe production of thermal energy by burning fuels.
    9. Investigate and describe qualitatively the thermal expansion of solids, liquids and gases.
    10. Describe the structure and operation of a liquid in glass thermometer (features of a clinical thermometer not required.)
    11. List some everyday applications and consequences of thermal expansion.
    12. Describe the application of thermal expansion in thermometers.

        There are no required readings.



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