Electricity

Simple explanation

Current is the rate of flow of charge.

Analogy or example

In a series circuit, current is the same through each component.

Misconception trap

Current is used up as it passes through components.

Real-world relevance

Current and charge connects equations and models to technology, transport, energy and space.

Vocabulary check

current, charge, rate, flow, potential

Simple explanation

In series, components share the supply potential difference.

Analogy or example

Household appliances are connected in parallel so each receives mains potential difference.

Misconception trap

Potential difference is always the same across every component.

Real-world relevance

Series and parallel circuits connects equations and models to technology, transport, energy and space.

Vocabulary check

series, parallel, circuits, components, share

Simple explanation

Mains electricity in the UK is alternating current.

Analogy or example

A fuse melts if the current exceeds its rating and breaks the circuit.

Misconception trap

The neutral wire is always completely safe to touch.

Real-world relevance

Mains electricity connects equations and models to technology, transport, energy and space.

Vocabulary check

mains, electricity, alternating, current, live

Simple explanation

Resistance and Ohms law sits inside Electricity, so learn the core definition and the exam example that usually comes with it.

Analogy or example

For a longer answer, write the equation or model first, then use units, graph clues or direction carefully.

Misconception trap

Resistance and Ohms law can be confused with nearby Electricity ideas.

Real-world relevance

Resistance and Ohms law connects equations and models to technology, transport, energy and space.

Vocabulary check

resistance, ohms, sits, inside, electricity

Simple explanation

I-V characteristics practical sits inside Electricity, so learn the core definition and the exam example that usually comes with it.

Analogy or example

For a longer answer, write the equation or model first, then use units, graph clues or direction carefully.

Misconception trap

I-V characteristics practical can be confused with nearby Electricity ideas.

Real-world relevance

I-V characteristics practical connects equations and models to technology, transport, energy and space.

Vocabulary check

characteristics, practical, sits, inside, electricity

Simple explanation

Electrical power and energy sits inside Electricity, so learn the core definition and the exam example that usually comes with it.

Analogy or example

For a longer answer, write the equation or model first, then use units, graph clues or direction carefully.

Misconception trap

Electrical power and energy can be confused with nearby Electricity ideas.

Real-world relevance

Electrical power and energy connects equations and models to technology, transport, energy and space.

Vocabulary check

electrical, power, energy, sits, inside

Simple explanation

Static electricity [Triple Only] sits inside Electricity, so learn the core definition and the exam example that usually comes with it.

Analogy or example

For a longer answer, write the equation or model first, then use units, graph clues or direction carefully.

Misconception trap

Static electricity [Triple Only] can be confused with nearby Electricity ideas.

Real-world relevance

Static electricity [Triple Only] connects equations and models to technology, transport, energy and space.

Vocabulary check

static, electricity, triple, only, sits