A complete, ready-to-teach lesson for Unit 1 (Principles and Applications of Science I), physics section: satellites, mobile phones, Bluetooth, infrared and Wi-Fi.

Learning objectives:

• Explain why different EM regions are chosen for different communication systems.
• Describe how geostationary and low-orbit satellites are used.
• Compare mobile phones, Wi-Fi, Bluetooth and infrared links in terms of frequency, range and data rate.
• Evaluate the advantages and limitations of each system.

What’s included:

• Student worksheet (PDF and editable Word)
• Teacher version with model answers and mark schemes (PDF and editable Word)
• Teacher notes: lesson flow, common misconceptions and practical/safety notes
• Retrieval starter (5 marks)
• Structured tasks with key-idea boxes and clear diagrams
• Check for Understanding quiz (10 marks) with a confidence self-assessment
• Exam-style practice (15 marks), ending with a levels-marked 6-mark question with indicative content

Specification coverage:

• C2 - Communication: the use of EM waves in communication: satellites, mobile phones, Bluetooth, infrared and Wi-Fi.

About 60 minutes of teaching; the exam-style section works in class or as homework. All questions are original.

Written for the Pearson BTEC Level 3 Nationals in Applied Science. Not endorsed by Pearson. Single-school licence.