Transcript lesson 1 - Walden University ePortfolio for Mike Dillon

PHYSICS: CHAPTER 35
Basic Circuitry Project – Lesson 1
What’s today’s
activity about?
Dad… We’re
going to look at
the basics of
circuitry.
Circuitry was the topic of
my doctoral thesis.
Gabe…
you’re the
smartest oneyear-old I
know..
Well…I come
by my intellect
naturally.
PHYSICS: CHAPTER 35
Basic Circuitry Project – Lesson 1
Aw…shucks…
That’s a nice
thing to say
about your old
man.
I though you were trying to
say that I was a smart guy.
What?
Nah…we just
keep you
around to
cook and
clean… Mom
is the smartest
person I know.
Review of Basic Terms
I’d better take over from here…
Let’s start by reviewing. Watch
the following video clip about
potential difference…
By the way…
what’s a more
common name
for potential
difference?
Review of Basic Terms
Take a minute right now
and answer the
questions about voltage
on your worksheet.
Review of Basic Terms
Here is a short clip about
current.
Which
direction do
the electrons
actually flow in
a circuit?
Review of Basic Terms
Take a minute right now
and answer the
questions about current
on your worksheet.
Review of Basic Terms
Here is a short clip about
resistance.
Is there any
material that
has zero
resistance?
Review of Basic Terms
Take a minute right now
and answer the
questions about
resistance on your
worksheet.
Resistance…is that like
when I refuse to make
changing my diaper
easy? Good times…
Review of Basic Terms
Here is one last video clip
dealing with Ohm’s Law.
Remember that
Ohm’s Law is
actually an
equation…
Review of Basic Terms
Finish answering the last
review questions on your
worksheet.
Let’s move on and talk
about different types of
circuits.
Types of Circuits
A series circuit is an electrical circuit where
the elements are wired “in line” so that
current must flow from one element to the
next in order.
FUN FACTS ABOUT SERIES CIRCUITS:
1. The current is same at every point in the circuit.
2. The sum of the voltages across individual
elements is the same as the voltage of the
battery.
3. If the circuit is broken, the current will stop
flowing.
Types of Circuits
A parallel circuit is an electrical circuit where
the elements are wired along different
“branches” so that current can flow along
different paths.
FUN FACTS ABOUT PARALLEL CIRCUITS:
1. The current may be different along different
branches.
2. The voltage across each branch of a parallel
circuit is the same.
3. If the circuit is broken along one branch, the
current can still flow along the other branch(es).
Schematic Diagrams
Now let’s review what you
remember about drawing
schematic diagrams.
I’ll name a circuit
component…you sketch the
symbol…
WIRE
Schematic Diagrams
Now let’s review what you
remember about drawing
schematic diagrams.
I’ll name a circuit
component…you sketch the
symbol…
BATTERY
Schematic Diagrams
Now let’s review what you
remember about drawing
schematic diagrams.
I’ll name a circuit
component…you sketch the
symbol…
RESISTOR
Schematic Diagrams
Now let’s review what you
remember about drawing
schematic diagrams.
I’ll name a circuit
component…you sketch the
symbol…
LIGHT BULB
Getting Started on the Project
It’s now time to begin the lesson.
You will be using hands-on
materials and a computer
simulation to explore the nature
and characteristics of circuits.
Since I’m still having trouble figuring out how to
walk, be sure ask my dad if you have questions. He
really is smarter than he looks…
PHYSICS
IS
PHUN!