Transcript Sir Kit’s Great Adventure

Sir Kit’s Great
Adventure
BY:MARISSA BENAVIDES & BROOKE MOLINA
Background information
Word
Tis what?
Charge
Electrons (-) and
protons (+) that attract
or repel
Magnets
- =><= +
<= - - =>
<= + + =>
Current
The flow of electrons
from negative (-) to
positive (+) over time
Flow of Water
through a pipe
Resistance
The slowing down of
electrons in a current
Measure of actual flow
created
Voltage
Example
Formula
Units
Symbol
(C)
COULOM
B
Q
I=Q/T
Current =charge
divided by the time
Amperes
(Amps)
I
Clog of a pipe
____________________
OHMS
Ω
R
Water Pressure
V=IR(Coulomb’s
Law)
voltage = the
current multiplied by
the resistance
VOLTS
V
_____________
An Ammeter : Measures Amperes
Resistor: removes energy
Battery: Source of energy
Voltmeter: Measures Energy
Wires :
________________
Choose your quest
Series Circuits
Parallel Circuits
Series Circuits

In a series circuit :

Voltage is distributed among the resistors:
Energy=V¹+V²+V³

The total resistance can be found by adding all of the
resistances: R= R¹+R²+R³
Finding Voltage, Current and Resistance
for a Series Circuit
1)
Find the total Energy (Volts from battery)
2)
Find the total resistance
Total R=r¹ +r² +r³
3) Determine the total current
I = V/R
4)Because current is always constant in a series
circuit , you can find the voltage by each resistor.
4V
In Parallel Circuits…..
 Voltage
is always constant
How to find V, I and R in a parallel circuit
1. Determine
the total energy
2. Find the total Resistance : 1/total
R = 1/R¹ + 1/R² + 1/R³
3. Find out the total current leaving
the energy source:
Total Energy: Voltage/Resistance
Ye Old Questions

What is always constant in a series circuit? (Click
the right answer)

Voltage

Current

Resistance

What is always constant in a parallel circuit?

Voltage

Current

Charge
Which is the symbol for a resistor
Which is the correct formula for
Coulomb’s Law
V=IR
I=RV
I=QT
Would two protons
repel or attract to
each other?
Would an electron
and a proton repel
or attract to each
other
Slay the Dragon!!!
 In
a parallel circuit the battery has a
voltage of 5V. Both lamps have a
resistance of 6 ohms. Solve for the
total resistance and current.
YAYYYY Ye Answer is Right!!!!!!
Oops ye answer is incorrect