Waves

Simple explanation

Wave speed equals frequency times wavelength.

Analogy or example

Sound is a longitudinal wave.

Misconception trap

Frequency and wavelength always increase together.

Real-world relevance

Wave properties connects equations and models to technology, transport, energy and space.

Vocabulary check

wave, properties, speed, equals, frequency

Simple explanation

All electromagnetic waves travel at the same speed in a vacuum.

Analogy or example

X-rays can be used for medical imaging but require controlled exposure.

Misconception trap

Radio waves are sound waves.

Real-world relevance

Electromagnetic waves connects equations and models to technology, transport, energy and space.

Vocabulary check

electromagnetic, waves, travel, speed, vacuum

Simple explanation

Waves required practical sits inside Waves, 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

Waves required practical can be confused with nearby Waves ideas.

Real-world relevance

Waves required practical connects equations and models to technology, transport, energy and space.

Vocabulary check

waves, required, practical, sits, inside

Simple explanation

Reflection, refraction and diffraction sits inside Waves, 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

Reflection, refraction and diffraction can be confused with nearby Waves ideas.

Real-world relevance

Reflection, refraction and diffraction connects equations and models to technology, transport, energy and space.

Vocabulary check

reflection, refraction, diffraction, sits, inside

Simple explanation

Sound and ultrasound [Triple Only] sits inside Waves, 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

Sound and ultrasound [Triple Only] can be confused with nearby Waves ideas.

Real-world relevance

Sound and ultrasound [Triple Only] connects equations and models to technology, transport, energy and space.

Vocabulary check

sound, ultrasound, triple, only, sits

Simple explanation

Lenses [Triple Only] sits inside Waves, 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

Lenses [Triple Only] can be confused with nearby Waves ideas.

Real-world relevance

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

Vocabulary check

lenses, triple, only, sits, inside

Simple explanation

Black body radiation [Triple Only] sits inside Waves, 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

Black body radiation [Triple Only] can be confused with nearby Waves ideas.

Real-world relevance

Black body radiation [Triple Only] connects equations and models to technology, transport, energy and space.

Vocabulary check

black, body, radiation, triple, only