Lesson Plan 12: Sound and resonant frequencies
Sound and resonant frequencies (Page 72 of the Teacher's Pack)
Download the lesson plan
Suitable for: 11-16 years
Curriculum and learning links:
- Sound and hearing, resonance
- State that sound travels in longitudinal waves created by a vibrating object
- Use wave diagrams to describe the difference between waves with varying amplitude and frequency
- Explain why an object will resonate when driven at its natural frequency
Clip 12.1: Musical road - Jem describes the link between vinyl records, frequency and cattle grids on roads, and outlines a project in which he hopes to use a car to generate a tune by driving over a homemade ladder.
Clip 12.2: Road test - Jem and Dallas test the track with a three-wheeled car.
Clip 12.3: Shattering sounds - Dr Yan breaks a wine glass using a note played on a violin.
Clip 12.4: Sound science - Dr Yan explains why different objects have different natural frequencies and succeeds in breaking a flat pane of glass with a note played on a double bass.