INTRODUCTION
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/Maybe think about this situation: You aregetting ready for Christmas, Channukah,and / or the Winter Solstice and putting upfestive lights.
/Maybe think about this situation: You aregetting ready for Christmas, Channukah,and / or the Winter Solstice and putting upfestive lights.
INTRODUCTION
INTRODUCTION
/Suddenly, you step on one of them and itbreaks!!!!!!! Not only does that light break,all the lights after that one stop working aswell!
/Suddenly, you step on one of them and itbreaks!!!!!!! Not only does that light break,all the lights after that one stop working aswell!
Why is this happening?
INTRODUCTION
INTRODUCTION
/This power point presentation is made tofurther explain the science behind thismodern day conundrum.
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In this presentation I will discuss Ohm's laws, series and
parallel circuits as well as well as answer basic questions
such as "what is a circuit". It's suprising but most people
don't know!
VOCAB
VOCAB
/Resistor - a device designed tointroduce resistance into an electriccircuit.
/Resistor - a device designed tointroduce resistance into an electriccircuit.
Battery- a combination of two or more
cells electrically connected to work
together to produce electric energy.
VOCAB
VOCAB
Ohm’s Law-Ohm's law is a statement that specifies therelationship between electricity to resistance and voltage.This law is used to measure electric currents. Ohm's lawstates that the current of electricity is equal to the voltagedivided by the resistance. This means that current andvoltage are proportional. However the current is indirectlyproportional to resistance. This relationship is similar toforce to mass. F=ma. This was created by George Ohm in1826
Ohm’s Law-Ohm's law is a statement that specifies therelationship between electricity to resistance and voltage.This law is used to measure electric currents. Ohm's lawstates that the current of electricity is equal to the voltagedivided by the resistance. This means that current andvoltage are proportional. However the current is indirectlyproportional to resistance. This relationship is similar toforce to mass. F=ma. This was created by George Ohm in1826
VOCAB
VOCAB
/Circuit- the complete path of anelectric current, including thegenerating apparatus, interveningresistors, or capacitors.
/Circuit- the complete path of anelectric current, including thegenerating apparatus, interveningresistors, or capacitors.
/jmac/sj/cj/5cj8mng.JPG
George Ohm
CIRCUITS
CIRCUITS
/We use the word circuit all the time, but what really is acircuit?? A circuit is any path along which electrons canflow. A circuit is usually controlled by a switch, sowhen the switch is closed (i.e a light switch turned on)the circuit will run. A circuit is the science behind anyelectronics we use. A circuit is most commonlyconnected two ways, in a series is one way. The otherway to wire a circuit is in a parallel circuit./We use the word circuit all the time, but what really is acircuit?? A circuit is any path along which electrons canflow. A circuit is usually controlled by a switch, sowhen the switch is closed (i.e a light switch turned on)the circuit will run. A circuit is the science behind anyelectronics we use. A circuit is most commonlyconnected two ways, in a series is one way. The otherway to wire a circuit is in a parallel circuit.
/We use the word circuit all the time, but what really is acircuit?? A circuit is any path along which electrons canflow. A circuit is usually controlled by a switch, sowhen the switch is closed (i.e a light switch turned on)the circuit will run. A circuit is the science behind anyelectronics we use. A circuit is most commonlyconnected two ways, in a series is one way. The otherway to wire a circuit is in a parallel circuit./We use the word circuit all the time, but what really is acircuit?? A circuit is any path along which electrons canflow. A circuit is usually controlled by a switch, sowhen the switch is closed (i.e a light switch turned on)the circuit will run. A circuit is the science behind anyelectronics we use. A circuit is most commonlyconnected two ways, in a series is one way. The otherway to wire a circuit is in a parallel circuit.
SERIES CIRCUIT
SERIES CIRCUIT
/What is a series circuit? A series circuit is away of connecting circuits so that there isonly one path for an electron to take.Christmas lights are assembled in a seriescircuit and this is why the conundrumhappens.
/What is a series circuit? A series circuit is away of connecting circuits so that there isonly one path for an electron to take.Christmas lights are assembled in a seriescircuit and this is why the conundrumhappens.
SERIES CIRCUIT
SERIES CIRCUIT
/Let me explain. In a series circuit, there isonly one path for the electron to take, a.k.aone wire, as on christmas lights.
/Let me explain. In a series circuit, there isonly one path for the electron to take, a.k.aone wire, as on christmas lights.
/img/EM-f2a_400x300.jpg
SERIES CIRCUIT
SERIES CIRCUIT
/A prime example of a series circuit.
/A prime example of a series circuit.
PARALLEL CIRCUITS
PARALLEL CIRCUITS
/A slightly more complicated but more practicalway to wire circuits is in parallel circuit. In aparallel circuit, electrical devices are connected toTWO points on an electrical circuit. This allowsan alternative path for the electron to take if theresistance forces the electron to not continue onthat particular path.
/A slightly more complicated but more practicalway to wire circuits is in parallel circuit. In aparallel circuit, electrical devices are connected toTWO points on an electrical circuit. This allowsan alternative path for the electron to take if theresistance forces the electron to not continue onthat particular path.
PARALLEL CIRCUITS
PARALLEL CIRCUITS
/http://www.pha.jhu.edu/dept/lecdemo/img/EM-f2a_400x300.jpg
/http://www.pha.jhu.edu/dept/lecdemo/img/EM-f2a_400x300.jpg
An example of a
parallel circuit
PARALLEL CIRCUITS
PARALLEL CIRCUITS
/multimeter/images/parallel_circuit.gif
A parallel circuit are wired so that
An electron has more than one route
If Christmas lights were wired
Parallel then the conundrum would
Be solved!
Survey
Survey
I asked 20 adults if they knew whatcaused the lights to go out when onebreaks. This was their response.
I asked 20 adults if they knew whatcaused the lights to go out when onebreaks. This was their response.
Relative Links
Relative Links
The Physics Classroom is a great site for helping diagrams as well
As simple definitions to give you the tools you need for understanding.
I used wikipedia to look up formulas and specific models that helped
Shape my understanding of circuits
I used websters for all my definitions.
I used the “Nasa files” to try to find
Helpful explanations and images.
A series circuit.
http://scifiles.larc.nasa.gov/text/kids/Problem_Board/problems/electricity/circuits2.html
CONCLUSION
CONCLUSION
/In conclusion, the reason all thelights following a broken light on aChristmas tree go out is because theyare wired in a series circuit, and theelectron can not pass through.
/In conclusion, the reason all thelights following a broken light on aChristmas tree go out is because theyare wired in a series circuit, and theelectron can not pass through.
