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Energy

Energy. An Overview Work Potential & Kinetic Energy Energy Sources Petroleum Coal Water Nuclear Solar Wind Geo-thermal. Energy – Geo-thermal. Energy – Geo-thermal. Energy – Geo-thermal. Energy – Geo-thermal. Energy – Geo-thermal. Energy – Geo-thermal. Energy – Geo-thermal.

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Energy

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  1. Energy • An Overview • Work • Potential & Kinetic Energy • Energy Sources • Petroleum • Coal • Water • Nuclear • Solar • Wind • Geo-thermal

  2. Energy – Geo-thermal

  3. Energy – Geo-thermal

  4. Energy – Geo-thermal

  5. Energy – Geo-thermal

  6. Energy – Geo-thermal

  7. Energy – Geo-thermal

  8. Energy – Geo-thermal

  9. Energy – Geo-thermal

  10. Energy – Geo-thermal

  11. Energy – Geo-thermal

  12. Energy – Geo-thermal

  13. Energy – Geo-thermal

  14. Energy • Work • To understand WORK – we must understand force • Force • An interaction between objects that is capable of changing the objects state of motion (rest/moving) • F=ma

  15. Energy Force WorkPowerEnergy F=ma m=F/a a=F/m

  16. Energy • Work (Mechanical) • A function of force and distance • Application of a force to an object and the distance the object moves • W = F x d • Unit of measurement – foot pound (ft lb)

  17. Energy Force WorkPowerEnergy F=ma W=Fd

  18. Energy • Important criteria for Work: • Something must move • Movement must be in the same direction as the direction of the force • Push, pull, lift, etc. • Time is not a function of work

  19. Energy • Power • Defined as the amount of work done over a period of time. • Force, distance, & time • Decrease the time – increase the power • Horsepower • 550 ft lb/s

  20. Energy Force WorkPowerEnergy F=ma W=FdP=W/t

  21. Energy • Energy • Defined as the ability to do work • Potential energy • Energy at rest • Fig 3.6 (p. 67) • Kinetic Energy • Energy in motion • Defined in terms of • Work done to put the object in motion • Work done on coming to rest

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