Warm-Up: The statements below are false. For each statement, replace the underlined term to make a true statement. 1. Charges flow easily in an electrical.

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Presentation transcript:

Warm-Up: The statements below are false. For each statement, replace the underlined term to make a true statement. 1. Charges flow easily in an electrical insulator. 2. Lightning is a form of static electricity. 3. Two objects would attract each other if they had the same positive charge. 4. The outlets in your home provide direct current to the TV and other appliances. 5. Voltage is defined as the opposition to the current by a material.

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2 types of Electric Circuits SERIES Circuit  All parts are connected in a single loop … all loads share the same current  Only 1 path for charges to follow … charges must move thru each part of the circuit PARALLEL Circuit  Loads are connected side-by- side … loads have the same Voltage but not the same current  More than 1 path for charges to follow

Examples of Electric Circuits SERIES Circuit Christmas Light strings - the little bulbs are usually in series. Batteries in the remote - they are in series, for ex: 4 each X 1.5V = 6Volt Burglar Alarm – if the circuit is broken, a signal goes out PARALLEL Circuit A Chandelier - all the light bulbs are in parallel. basically Everything in your house - all appliances are in parallel to the mains supply. Bill Nye Circuits video:

Electric Circuits – Household Safety  Fuse: a small container (most are cylindrical, some are round) with a thin metal strip in its middle (also found in cars) Current too high  metal strip melts  circuit is broken  Breaker: a switch that can automatically open if a metal strip inside it bends … can be closed again for re-use Current too high  metal strip heats up & bends  switch is opened-up  circuit is broken G.F.C.I. (Ground Fault Circuit Interrupter): breaker commonly found in bathrooms & kitchens … has a red reset button

Videos: 1) Circuit Breaker –vs- Fuse 2) Samples of Fuses Blowing =LyekAmnJnOA =pJ9e4eaOiEk

Exit Ticket  Correctly draw the two types of Circuits  Label their main parts.