Electricity is Electronics
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Transcript of Electricity is Electronics
Electricity is Electronics
Technology EducationThe future is looking bright!
Electricity is Science• Electricity is chemistry
• Atoms contain protons and electrons
• Electrons flowing from one place to another is known as electricity.
The atomAtoms:• contain electrons which are
negatively charged
• contain protons which are positively charged
• want to have an even number of protons to electrons
AttractionLikes and Dislikes• Two positives repel +/+
R• Two negatives repel -/- R• A positive and a negative attract +/- A
Magnets: • north & north repel n/n
R• south & south repel s/s R• north & south attract n/s A
Cats chase birds electrons chase protons
• Electrons (-), Protons (+)
• Electrons are attracted to the positive protons
• Electrons want to pair with the protons until there is an equal number of protons to electrons.
Static electricity
The carpet experiment
– Rub your feet into the carpet (like a cho cho train).
– Then…using your finger…touch a “friend”
What happens…???
The Shocking Truth• When you drag your feet across the
carpet…THINGS are jumping onto you.
• Electrons jump onto your body and create an imbalance of electrons to protons
• You are now negatively charged.
Your Unsuspecting Friend
• Your friend is positively charged (extra protons)
• When you sneak over and touch your “friend”, your extra electrons jump over to your “friend”
• This movement causes a • The electrons then partner with your friend’s
extra protons…creating a balance.
To Make a Complete Circuit
Start
Finish
Summit
OBJECTIVE: You must return to where you STARTED… Puff puff
To Make a Complete CircuitAn electrical circuit is complete when the electricity from the….
Power Source:
Passes through…. Conductors:
or Loads:
And returns back to the power source through the…
Battery Clip:
The battery
The battery
The battery
The battery
The battery
Complete Circuit
Dead Battery ?
Closed Circuit vs. Open Circuit
Closed Circuit vs. Open Circuit
Series Circuit“closed circuit”
Series CircuitOpen Circuit
Parallel CircuitClosed circuit
Parallel CircuitOpen Circuit
When you get to the Safety Rules site…move through the slides using the “next” and “previous” buttons.
Take notes of the Safety rules. Neatness + completeness count…the notes will be submitted for marks.
Click the link.
then click
then
then
then Safety Rules
Click the link below and follow the instructions in
Electrical Safety Grades K-6
Click the link below and follow the experiment for
Static Electricity Grade K-8
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R2
+V
-V
R2
+V
-V
R2
+V
-V
R2
+V
-V