Transcript electricity spider diagram revision

Definition
Symbol
Voltage
Push on the electrons
V
Current
Rate of flow of electrons
Charge
Total number of charged particles
Energy
Amount of energy given to a component
Resistance
How hard it is for electrons to flow
Power
How fast energy is transferred
Unit
Volts
Unit
Symbol
V
• Safety Features:
Double Insulation: Outer case is _____ so it will
always be safe to touch.
Insulation: _____ outside cable safe to touch
Earthing: outside casing connected to _____
Circuit Breaker: Trips if too big a ____ flows
Fuse: _____ if too big a ____ flows
• Wiring a Plug:
Fuse on the live Wire
Green/Yellow: Earth
Brown: ______
Blue: _______
Definitions
Equations
Mains
Electricity
Mnemonic
Equation
Units
Exercise Is Very tiring
E=IVt
J=AVs
Series and
Parallel Circuits
Peter is a Veggie
QuIt
Very Important Rabbits
Resistor
Bulb
I
Diode
I
V
I
V
V
Series
Circuit
Current
Voltage
Circuits
IV Graphs
• Hazards:
Frayed Cables
Damaged Plugs
Water
Don’t play with
sockets
Component
Function
Diode
Only lets the current through one way
Thermistor
Senses _____ (low ______ high _____)
LDR
Senses _____ (low ______ high _____)
Symbol
Parallel
Circuit
Definition
Symbol
Unit
Unit
Symbol
Voltage
Push on the electrons
V
Volts
V
Current
Rate of flow of electrons
I
ampere
A
Charge
Total number of charged particles
Q
coulomb
C
Energy
Amount of energy given to a component
E
joule
J
Resistance
How hard it is for electrons to flow
R
ohm
Ω
Power
How fast energy is transferred
P
watt
W
• Safety Features:
Double Insulation: Outer case is plastic so it will
always be safe to touch.
Insulation: plastic outside cable safe to touch
Earthing: outside casing connected to earth
Circuit Breaker: Trips if too big a current flows
Fuse: melts if too big a current flows
• Wiring a Plug:
Fuse on the live Wire
Green/Yellow: Earth
Brown: live
Blue: neutral
Definitions
Equations
Equation
Units
Exercise Is Very tiring
E=IVt
J=AVs
Peter is a Veggie
P = I V
W = A V
QuIt
Q = I t
C = A s
Very Important Rabbits
V = I R
V = A Ω
Series and
Parallel Circuits
Circuits
IV Graphs
Resistor
Bulb
I
V
I
V
Series
Circuit
Parallel
Circuit
Current
same
split
Voltage
split
same
Less Cabling
If one breaks rest still work and/or same voltage
Diode
I
Mains
Electricity
Mnemonic
• Hazards:
Frayed Cables
Damaged Plugs
Water
Don’t play with
sockets
V
Component
Function
Diode
Only lets the current through one way
Thermistor
Senses Temp (low resistance high temp)
LDR
Senses Light (low resistance high light)
Symbol