Lesson 1: Lesson objectives: To learn about the electromagnetic spectrum. Outcome 1 (P) Outcome 2 (M) Outcome 3 (D) To explain simply what EM spectrum is. State the order of waves in the EMS. Link the features of the wave to its uses.

Task – Finding out about the electromagnetic spectrum Move around the room reading the information stations. Complete your table. Peer assess.

The Electromagnetic Spectrum QuestionAnswer 1. What is the electromagnetic Spectrum? 2. What does wavelength mean? 3. What does frequency mean? 4. What is the order of the electromagnetic spectrum from long wavelength/low frequency to short wavelength/high frequency? Vibrations of magnetic and electric fields that don’t need air to travel. The length of 1 wave. It can be measured in m, km, cm, mm or nm. How many/number of waves per second. It can be measured in Hz, kHz, MHz or GHz. -Radiowaves -Microwaves -Infra-red -Visible light -Ultra-violet -X-rays -Gamma rays

The Electromagnetic Spectrum WaveHow its madeUsesDangers Radiowaves Microwaves Infra-red Visible Light Ultra-violet X-rays Gamma rays - By stars - By radioactive substances -Kill cancer cells -Sterilise food -Sterilise medical equipment -Tracers for medical tests -Causes cell damage. -Causes mutations – cancer - By stars - By an x-ray machine firing a beam of electrons at a target -See inside people and scans -Airport security -Astronomers to detect objects in the universe -Causes cell damage. -Causes mutations – cancer -Special lamps -The Sun -Sun tan and produce vit D -Detecting forged bank notes -Harden dental fillings -Kill microbes/sterilise -Damage the retina in the eye -Sunburn -Skin cancer -Made by anything hot enough to glow -The sun -To see -Lasers, CDs, DVDs, printers, weapons aiming systems -Damage the retina in the eye if you look at something too bright -Hot objects -Stars -Lamps, flames, us! -Remote controls -Night vision -Security systems -Thermal imaging, weather -Overheating -Made by a transmitter -Cook -Mobile phones -Radar -Speed cameras -Cataracts -Damage parts of brain (mobile phones) -Made by a transmitter -Stars, sparks, lightening -Communications – radio, tv, aircraft -Large doses can cause leukaemia

Lesson 2: Lesson objectives: To learn about the use of light and lasers. Outcome 1 (P)Outcome 2 (M) To explain what a laser is and what it is used for. Discuss how we communicate with Morse Code.

Task – How is light used in different ways? Get into groups of 3. The scribe stays with the A3 piece of paper. The 2 runners move around the room to find out the information to meet the outcomes. The scribe writes down the information on the A3 piece of paper. YOU HAVE 10 minutes.

Task – How is light used in different ways? Use your information to produce an A3 information sheet about use of light in different ways. Stick the outcomes on the top. YOU HAVE 10 MINUTES. Peer assess and grade another groups work. Give 1 WWW and 1 EBI.

Lesson 3: Lesson objectives: To learn about the use of infra-red for cooking. Outcome 1 (P)Outcome 2 (M) Relate colour to infra-red. Apply results to a new situation. Explain simply how infra-red is used for cooking.

Scenario Please design Haydock High a new school uniform for summer and winter! Use the equipment you have got to decide on the colours that the uniform should be related to the temperature at the time of the year. After the practical, draw you summer and winter designs, label them and explain why you have chosen these colours.

Lesson 4: Lesson objectives: To learn about the use of microwaves for cooking. Outcome 1 (P) Outcome 2 (M) Outcome 3 (D) Relate microwaves to cooking food/fat molecules. Explain microwaves in relation to particles. Evaluate the P and N of mobile phones related to microwaves.

A microwave works by.. Knowledge beforeKnowledge after

Lesson 6: Lesson objectives: To learn about using light to communicate with. Outcome 1 (P)Outcome 2 (M)Outcome 3 (D) Explain what an optical fibre is and how it can be used to communicate with. Explain total internal reflection. Apply knowledge of TIR to explain an endoscopy.

Optical fibres for communication…

Key words to know… Optical fibre: Boundary: Critical angle: Angle of incidence: Angle of reflection: Normal line: Total internal reflection:

Lesson 7: Lesson objectives: To learn about analogue and digital signals Outcome 1 (P) Outcome 2 (M) Outcome 3 (D) Define analogue and digital. Draw and label analogue and digital signals. Evaluate which is better at coping with ‘noise’.