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Electricity Learning Objectives: PS 3-I can describe or explain that electrical current in a circuit (closed path) can produce thermal energy, light, sound,

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Presentation on theme: "Electricity Learning Objectives: PS 3-I can describe or explain that electrical current in a circuit (closed path) can produce thermal energy, light, sound,"— Presentation transcript:

1 Electricity Learning Objectives: PS 3-I can describe or explain that electrical current in a circuit (closed path) can produce thermal energy, light, sound, and/or magnetic forces. PS 4-I can trace how electrical current travels by creating a simple electric circuit that will light a bulb.

2 What is electricity? Energy produced by moving electrons –Electrons = negatively charged particles. Electron

3 How is electricity used today? Light Heat Movement/power Communication Sound

4 How does electricity change? Changes to magnetic force, thermal, light, sound

5 This lamp changes electrical energy to: A. Thermal B. Light C. Magnetic D. Thermal and Light

6 What do toasters transfer electric energy into? A. Magnetic B. Thermal C. Light D. Solar

7 What types of energy is electricity transferring to in the television? a.Light b.Sound and Thermal c.Light, Sound, and Temperature d.Light, Sound, and Thermal

8 Forms of Electricity Static Electricity –Buildup of charges on an object –Potential to kinetic energy –Not a reliable energy source –Examples: Lightning Hair standing straight up after taking off a hat

9 Forms of Electricity Cont. Current Electricity –Steady flow of electrons –Kinetic energy –Excellent source of energy –Examples: Hairdryer Lamps

10 Conductors and Insulators Conductor –Material that electricity moves through quickly Insulator –Material that electricity moves through slowly Wires are usually covered with plastic, why is this so?


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