Describing waves - types of wave

MOD applications of wave technology

Synopsis

This lesson introduces students to wave types, considering the properties of transverse and longitudinal waves, gaining familiarity with key vocabulary and the wave equation. Extended applied examples are considered, including the prediction of the site and scale of earthquake, 4D imaging of foetuses and various military applications used in both defence and humanitarian contexts, such as ground to air aircraft tracking, mine clearance and submarine navigation.

The second half of the lesson focuses on developing a deeper understanding of waves via the study of seismic waves. Students consider their impact and measurement before reviewing the role of the MOD in providing humanitarian aid after the 2005 Kashmir earthquake.

Interactive exercises and games are all progressive, supported with video and further resources. Students are encouraged to consider other applied examples, whilst varied teaching styles assist comprehension and impact.

MOD Topic

MOD applications of wave technology

Curriculum Checklist

2d; 2f.

Curriculum Links

• Citizenship

Prior Knowledge

None required.

Learning Outcomes

Lower ability students will:

• Be familiar with key vocabulary used to describe the features of transverse and longitudinal waves and be able to illustrate diagrams accordingly.
• Be familiar with the idea that sound waves are longitudinal and that electromagnetic waves are transverse.
• Be able to provide examples of each of these.
• Understand that seismic waves are a type of shock wave, commonly earthquake activity and that the size of the waves can be an indication of the likely damage an earthquake will exert.

Average ability students will:

• Be familiar with the wave equation and be able to use it to calculate wave speed.
• Be able to name a number of examples of both transverse and longitudinal waves.
• Be familiar with the different types of seismic waves and their properties.
• Understand the process of echo sounding and ultrasound and their respective functions.
• Be aware that transverse and longitudinal waves have the same properties.

Higher ability students will:

• Be able to use the wave equation to calculate the speed, frequency and wavelength of any wave.
• Be familiar with the different types of seismic waves, their properties, and whether they are longitudinal or transverse.
• Be able to name a number of examples of both transverse and longitudinal waves.
• Be aware that transverse and longitudinal waves have the same properties.
• Understand the process of echo sounding and ultrasound and their respective functions.

Lesson code

SC9