1. The Four Energy Systems  Mechanical  Fluid  Electrical  Thermal

2. The Prime Movers of the Four Energy Systems  Mechanical - Force  Fluid- Pressure  Electrical- Voltage  Thermal- Temperature

3. International System of Units The SI unit of current is the ampere; that of potential difference is the volt; and that of resistance is the ohm.amperevoltohm

4. Electric Current Electric current is by definition the flow of electric charge. The SI unit of electric current is the ampere (A).

5. Ampere The ampere (symbol: A) is the SI base unit of electric current. It is named after André-Marie Ampère, one of the main discoverers of electromagnetism.SI base unitelectric current André-Marie Ampèreelectromagnetism

6. Voltage Voltage is the difference of electrical potential between two points of an electrical network, expressed in voltsdifference of electrical potentialelectrical networkvolts

7. Voltage This difference is proportional to the electrostatic force that tends to push electrons or other charge- carriers from one point to the other. Potential difference, electrical potential, and electromotive force are measured in volts, leading to the commonly used term voltage.proportionalelectrons

8. Ohm’s Law The law is named after the physicist Georg Ohm, who published it in 1826.Georg Ohm1826 Ohm's law states that, in an electrical circuit, the current passing through most materials is directly proportional to the potential difference applied across them.electrical circuitcurrentproportionalpotential difference

9. Ohm’s Law I=V R where I is the current, V is the potential difference, and R is a proportionality constant called the resistance. The potential difference is also known as the voltage drop, and is sometimes denoted by E or U instead of V.

10. Circuit A Source A Load A Path

11. A Series Circuit In a Series Circuit there is only One path for the current to travel.

12. A Series Circuit In a Series Circuit if one load is interrupted, then the whole circuit shuts down.

13. A Series Circuit A good example of a “Series Circuit” is a string of Christmas Tree Lights.

14. A Parallel Circuit In a Parallel Circuit there is Multiple paths for the current to travel.

15. A Parallel Circuit In a Parallel Circuit if one load is interrupted, the rest of the circuits continue to operate.

16. A Parallel Circuit A good example of a “Parallel Circuit” is the Lights on your car.

17. In what fundamental way does energy differ from matter? Energy does not have mass.

18. Kinetic energy is associated with_____________? The Movement of Molecules.

19. Potential energy is defined as _____________? Energy which is stored.

20. How does temperature equalize itself between two temperatures _____________? Heat moves from the warmer object to the colder object.

21. When pressure increases what happens to temperature? When pressure increases, temperature increases.

22. When pressure decreases what happens to temperature? When pressure decreases, temperature decreases.

23. What happens to particles when temperature is high? Particles move faster and bounce into each other.

24. What happens to particles when temperature is low? Particles are slow moving and hardly bounce into each other.

25. Define Temperature in a sentence or two?

26. Describe the relationship between heat energy and molecular motion, including how heat moves through a system.

27. What are the two scales to measure temperature. Celsius & Fahrenheit

28. Temperature difference in a system “acts” like a force when moving heat energy.

29. With what instrument do we measure temperature. Thermometer