Lesson slides and activities Covers the following spec points: • Understand how the regions of the electromagnetic spectrum are grouped according to the frequency • Understand how the applications of electromagnetic waves in communications are related to frequency, including: o satellite communication o mobile phones o Bluetooth® o infrared o Wi-Fi disclaimer - I do not own any image in this power point, all images were taken from Google

Lesson powerpoint and activities Covers the following spec points: • Understand concepts of displacement, coherence, path difference, phase difference, superposition as applied to diffraction gratings • Understand the industrial application of diffraction gratings

Lesson powerpoint and activities Covers the following spec points: • Understand concepts of displacement, coherence, path difference, phase difference, superposition as applied to diffraction gratings disclaimer - I do not own any image in this power point, all images were taken from Google

Lesson powerpoint and activities Covers the following spec points: • Understand the principles of fibre optics: Refractive index Total internal reflection disclaimer - I do not own any image in this power point, all images were taken from Google

Lesson powerpoint and activities Covers the following spec points: • Understand the features common to all waves and use the following terms as applied to waves: o periodic time o speed o wavelength o frequency o amplitude o oscillation • Graphical representation of wave features • Understand the difference between the two main types of wave: o transverse o longitudinal disclaimer - I do not own any image in this power point, all images were taken from Google

Lesson powerpoint and activities Covers the following spec points: • Understand the industrial application of diffraction gratings, to include: o emission spectra o identifying gases disclaimer - I do not own any image in this power point, all images were taken from Google

Lesson powerpoint and activities Covers the following spec points: • Understand the concept and applications of stationary waves, resonance disclaimer - I do not own any image in this power point, all images were taken from Google

Lesson powerpoint and activities Covers the following spec points: • Understand the concept and applications of stationary waves, resonance • Musical instruments disclaimer - I do not own any image in this power point, all images were taken from Google

Lesson powerpoint and activities Covers the following spec points: • Understand the applications of fibre optics in medicine to include endoscopes • Understand the applications of fibre optics in communication, to include: o analogue and digital signals: analogue-to-digital conversion, broadband disclaimer - I do not own any image in this power point, all images were taken from Google

Lesson powerpoint and activities Covers the following spec points: • Understand that all electromagnetic waves travel with the same speed in a vacuum • Be able to use the inverse square law in relation to the intensity of a wave: