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Chapter 12 – Sound
When students have completed this lesson they will find out:
- How sounds are produced
- How to measure the speed of sound
- How pitch and loudness are related to frequency and amplitude
- How sound travels
- About the speed of sound in different materials
Chapter 13 – LightWhen students have completed this lesson they will find out:- How to use the law of reflection of light
- How a plane mirror forms an image
- How to construct ray diagrams for reflection
- How light is refracted
- How to use Snell’s law to determine the refractive index
- How to describe total internal reflection
- How to use ray diagrams to explain how a lens forms a real image
- How a magnifying glass works
Chapter 14 – Properties of WavesWhen students have completed this lesson they will find out:- How to describe a wave in terms of speed, amplitude, frequency and wavelength
- The differences between transverse waves and longitudinal waves
- How to calculate wave speed
- How to describe reflection and refraction of waves
- How to explain reflection, refraction and diffraction of waves
Chapter 15 – SpectraWhen students have completed this lesson they will find out:- How to describe the dispersion of light by a prism
- How to describe the main features of the electromagnetic spectrum
- That all electromagnetic waves travel at the same speed in vacuum
- The value of the speed of electromagnetic waves