CIE IGCSE Combined Science P4 REVISION (Properties of waves)

This fully-resourced revision lesson covers the CORE and SUPPLEMENT sections of topic P4 (Properties of waves, including light and sound) of the CIE IGCSE Combined Science specification. The engaging PowerPoint and acccompanying resource have been written to include a wide range of activities which include exam-style questions (with clearly explained answers), differentiated tasks and quick quiz competitions. These activities challenge the following specification points:

• State the meaning of speed, frequency, wavelength and amplitude
• Distinguish between transverse and longitudinal waves and give examples
• Describe how waves can undergo reflection and refraction and that the latter is caused by a change in the wave speed
• Recall and use the law of reflection
• Describe the main features of the EM spectrum
• State that all waves travel at the speed of light in a vacuum and recall this speed
• Describe the uses of the EM waves
• Describe the longitudinal nature of sound waves
• Recall and use the equation to calculate wave speed
• Describe how to measure the speed of sound in air and ripples on water surfaces
• Recall that sound waves can be ultrasound

To fall in line with the greater mathematical content of the specification, there is a large emphasis on a range of mathematical skills in this lesson which includes the use of standard form.

Due to the detail of this lesson, it is estimated that it will take in excess of 2 hours of IGCSE-allocated teaching time to cover the content and this allows this to be used at the end of the topic or in the lead up to mock or terminal examinations.