PhysicsUK Connections

Connections.EXPLORE · CONNECT · UNDERSTAND YOUR COURSEOCR A · AS Physics Change course ↗
All apps ↗
55 ideas · 9 connections
Wave frequency and photon energy Waves4.4 Quantum physics4.5 Wave motion4.4.1
100%

Select a node to explore. Select a green line to follow a connection.

Drag to pan · scroll to zoom · arrow keys to move · 0 to fit

Physics connection Topic → subtopic
Explore the connections 9
PHYSICSUK CONNECTIONS
Course idea

Wave motion

OCR A AS Physics · 4.4.1

Explore wave motion within waves. A wave transfers energy through oscillations. Relate frequency, wavelength and speed, then use phase and superposition to explain interference and stationary waves.

Specification outcomes (10)
  • 4.4.1(a) Define and describe progressive, longitudinal and transverse waves.
  • 4.4.1(b)(i) Define displacement, amplitude, wavelength, period, phase difference, frequency and speed of a wave.
  • 4.4.1(b)(ii) Use an oscilloscope to determine frequency and wave characteristics.
  • 4.4.1(c) Use 1/T = f to relate period and frequency.
  • 4.4.1(d) Use the wave equation v = fλ.
  • 4.4.1(e) Interpret graphs of transverse and longitudinal waves.
  • 4.4.1(f)(i) Describe reflection, refraction, polarisation and diffraction of waves.
  • 4.4.1(f)(ii) Demonstrate wave effects using a ripple tank.
  • 4.4.1(f)(iii) Observe polarisation effects using microwaves and light.
  • 4.4.1(g) Define intensity I = P / A and recognise that intensity ∝ amplitude².
Open the official OCR AS specification ↗

H156 v2.0 · May 2026

OFFICIAL EXAM-BOARD RESOURCES

See it in an exam

No checked paper linked yet

This idea is ready to explore. A paper will appear here once its question and mark scheme have been checked.

Explore a checked spring-energy example ↗

A curated collection of checked examples. Coverage is growing; this is not a complete past-paper catalogue.

ORIGINAL PHYSICSUK QUESTIONS

Put the ideas to work

Questions are matched by their specification tags. Read the prompt to check how it relates to this topic; use “Report tag issue” if a match seems wrong.

PhysicsUK Solve10 marks

An optical sensor alternates between a green source of wavelength 520 nm and a red source of wavelength 650 nm. Treat each source as monochromatic and use its wavelength in a vacuum. Each source emits 2.0 μJ of light energy in a burst. Use c = 3.00 × 10⁸ m s⁻¹ and h = 6.63 × 10⁻³⁴ J s. (a) Calculate the frequency of the green light. [2] (b) Calculate the energy of one green photon and one red photon. [3] (c) Calculate the number of photons emitted in one green burst. [2] (d) A technician claims that equal-energy bursts contain equal numbers of photons. Calculate the ratio (red photon count)/(green photon count) and explain whether the claim is correct. [3]

Matched by specification tags

Try this question now →
PhysicsUK · Built for understanding