Unit 2: Waves

How do waves transfer energy from one place to another? What is the difference between transverse and longitudinal waves?

What are the key features of a wave? How is amplitude, wavelength and frequency measured?

What does it mean when a wave reflects and refracts? How are these displayed in wave diagrams?

What are echoes and how are they used by sonar to map areas and locate objects? What is ultrasound and how is it used in medicine and industry?

What type of wave are electromagnetic waves? What are their properties and how are they used in everyday life?