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Published byDesirae Derham Modified over 2 years ago

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YOU ARE TAKING A TEST TODAY! THERE WILL BE A REVIEW THEN YOU WILL TAKE THE TEST YOU WILL GET 1-HOUR TO TAKE THE TEST THAT IS PLENTY OF TIME TO FINISH UNLESS YOU WASTE TOO MUCH TIME ON THE REVIEW…

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ELE – A ELE – BReview -These slides are review. -Your sub will click through the slides when you are ready to move on, just let them know -You can take notes, BUT you CANNOT use them on the test -Just go through these slides and pay attention. -Test starts AFTER the review, so its up to you and your behavior to decide how long the review takes. -NO, you cannot start the test early

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ELE - A What is Potential Difference – It is measured in Volts – (V) – It is electrical energy.. – Provided by a battery… – Which converts chemical energy (there are chemicals inside a battery) into electrical energy – This causes a….

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ELE - A … a Current – Flow of electrically charged particles – Measured in Amperes – Amps (A) – No Current, no lights! – Delivers voltage to circuit components. – Those components provide…

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ELE - A …Resistance – Anything that uses current and voltage provides Resistance – It is measured in Ohms– (Ω) – A Resistor is a resistor – A light-bulb is a resistor - Brightness of a light bulb depends on…

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ELE - A … Power – Energy used by a component for a period of time. – Measured in Watts– (W) – Different wattage of bulbs (60 W, 100 W etc.) means the blub is using more current and/or voltage.

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Formulas… They are on the wall…

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Remember what you did in your lab! I measured current and voltage I made a table I made a graph I found the slope of the graph… What did that slope mean? Why does the slope mean that? Voltage (V) Current (A)

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ELE – B – Analyze Circuits Remember – … to follow the Current. It leaves the battery and must complete the circuit (circle) in any direction in order for current to flow. … “Voltage Drop” just means the amount of voltage a resistor uses.. Check your VIRP chart Let’s Practice

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ELE – B – Analyze Circuits - Series Series Circuit – Go to next slide when video is done

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ELE – B – Analyze Circuits - Parallel

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Formulas for Equivalent Resistance

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ELE – B – Analyze Circuits Remember – This symbol means voltmeter. It measures potential difference in volts The ends represent the leads of the multimeter you used in labs. This symbol means ammeter. It measures current in amps The ends represent the leads of the multimeter you used in labs.

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CLEAR YOUR DESK of ONLY… Formulas – NO NOTES Calculator – (seriously? You don’t already have one?) Separate sheet of paper to do work – (seriously? You’re gonna do it all in your head?) Your Sub will come around and check each person then give you the codes…

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Codes ELEA1 ELEB1 When you are finished, stay SILENT for the other people still testing…

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Electrical Resistance Electrical resistance is a measure of how difficult it is for electricity (electrons) to flow through a material. The units of resistance.

Electrical Resistance Electrical resistance is a measure of how difficult it is for electricity (electrons) to flow through a material. The units of resistance.

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