Atomic Structure

Why Atoms Are Neutral

What Is An Ion

How Insulators Become Charged (S)

Electric fields of charged objects (S)

Uses Of Static Electricity

Dangers of Static Electricity

Electrical Circuit Symbols

What Is A Voltmeter & Ammeter

The Difference Between Electron & Charge

What Is An Electric Current?

Electric Current: Electron Flow Vs Conventional Current

What Is A Series & Parallel Circuit

What Happens In Incomplete Circuits

Current, Charge Flow & Time Equation

Worked Examples Of Current, Charge Flow & Time Equation

What Is Potential Difference

Potential Difference, Energy Transferred & Charge

Calculating Potential Difference Using Energy Transferred & Charge

The Difference Between Cells & Batteries

What Is Resistance

Resistance, Current & Potential Difference Equation

Worked Examples Of Resistance, Current & Potential Difference Equation

What Causes Resistance To Increase Or Decrease

What Is Ohm's Law

Interpreting Ohm's Law Graphs

How Filament Lamps Affect Resistance

What Is A Light-Emitting Diode

How Diodes Affect Resistance

What Is A Light Dependent Resistor (LDR)

What Is A Thermistor

What Is The Difference Between Direct Current & Alternating Current

The National Grid

Step-Up & Step-Down: Vp/Vs = Np/Ns

Step-Up & Step-Down: Vs x Is = Vp x Ip 

National Grid Demands

Three-Core Cable

Three-Pin Plug

Mains Appliances

What Is Power

Worked Examples Of Power, Energy, Time Equation

What Is Electrical Power

Worked Example Of Electrical Power Equation

Calculating Efficiency

How To Choose The Right Fuse

Worked Examples Of How To Choose The Right Fuse

Heating Effect Due To Heating

How Current Affects Transmission Of Power

Energy Transfer In A Circuit

P = E ÷ t

P = I x V

V = I x R

E = V x Q

Q = I x t

P = I² x R

How To Convert Units

The Atom (11)

Circuits, Potential Difference, Current & Resistance (20)

Mains Electricity (10)

The Atom, Electrical Charges & Fields (S) (17)