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What is electricity? Illustrate and describe. IN ?: P.98.

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Presentation on theme: "What is electricity? Illustrate and describe. IN ?: P.98."— Presentation transcript:

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2 What is electricity? Illustrate and describe. IN ?: P.98

3 Exit Quiz REVIEW 1._______________is the transfer of heat through direct contact. 2.Heat always transfers from _____________ temperatures to _____________ temperatures. 3.A pot of boiling water BEST illustrates which form of heat transfer? __________________ 4.Metals like copper and aluminum are examples of good ______________ of heat. ADD TO NOTEBOOK P. 96 Conduction Warmer (hot) Cooler (cold) convection conductors

4 Review: Stand or Sit For all objects that are INSULATORS STAND UP. For all objects that are CONDUCTORS STAY SEATED.

5 Insulator or Conductor? Wood

6 Insulator or Conductor? Styrofoam

7 Insulator or Conductor? Metals

8 Insulator or Conductor? Vaccum (no medium)

9 Insulator or Conductor? Aluminum

10 Electricity Notes Add to P.99

11 What is Electricity? Involves the movement of electrons Is invisible Provides light, heat, sound, motion...

12 Electron Flow Electricity is created as electrons collide and transfer from atom to atom. Play Animation

13 Static Electricity A stationary (at rest) electrical charge that is BUILT UP on the surface of a material Electrons will move from places where there is A LOT to where there is a little Opposite charges will attract and like charges will repel static discharge : Sudden flow of electrons from an object that has a buildup of charges (shock).

14 Example: If you shuffle your feet on the carpet, then reach out to touch a metal door knob, you receive a shock by a spark- explain why? Electrons rubbed off carpet and onto your feet –Shoe has extra e’s (negative chg) –Rug is missing e’s (positive chg) –Extra electrons from the shoe are transferred to the doorknob in the form of an electrical spark

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16 Types of Electricity Current Electricity The movement of electrons through a conductor.

17 Check for Understanding What’s the difference between current and static electricity?

18 Like or Opposite Charges?

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20 Electricity Videos Static Electricity BrainPop http://studyjams.scholastic.com/studyjams/ jams/science/energy-light- sound/electricity.htmhttp://studyjams.scholastic.com/studyjams/ jams/science/energy-light- sound/electricity.htm

21 Out ?P. 98 Compare/Contrast: Current Electricity V Static Electricity


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