4.4 – USING WAVES Scheme of Work (2005) Y10 Physics Lesson Learning Objectives Content References Homework ideas Risks 1 Remember the order of Starter - Ask students what types of waves they Co.Ord Answer Q1 – Q4 on p 97 N/A types of waves in the know about, apart from light & sound. See if they PHYSICS 3: and Q5 on p 118 E.M. Spectrum. can find similarities between them. p 96-97 Worksheets available You could show Be aware of some uses, Discuss the main components of the KS4 Waves: EM dangers & effects for ELECTROMAGNETIC SPECTRUM & outline Physics for GCSE: Research the use of Radiation different types of E.M. some uses & effects. Emphasise that they all travel p 155-156 microwaves in ovens Boardworks slides waves. at the same speed (300,000 km/s), they are all 6 – 28, or Active transverse and all can travel through a vacuum. June 2004 terminal Waves PowerPoint Get students to produce a mnemonic or other way exam Q4 shows (several to remember waves in order, from smallest to available on EM largest (RMIVUXG), for example, “Red Monsters June 2002 periodic waves) OR KS4 In Violet Underpants X-ray Gorillas”!!! exam Q13a-c No Messing VIDEO – The Electromagnetic Spectrum Powerpoints (Science in Focus, tape EE, or Seeing through (Waves) Science, tape DD). Discuss main points covered. . Questions or written work on main types of electromagnetic waves & basic uses. Plenary – Quick quiz on EM waves & examples (could use traffic lights cards). 2 State some uses, Starter - Show PowerPoint show by JIR. Discuss Co.Ord Phys 3: The ‘Strange Waves in Should be C3. dangers and effects for in detail how we use: MICROWAVES & INFRA- p 96-97 Wurzburg’ Web Reader Ensure that different types of E.M. RED waves (cooking), X-RAYS (medical images) Physics for GCSE: sheet can be used to students are happy waves. and GAMMA RAYS (in tracers and radiotherapy). p 155-156 practise Literacy skills & to volunteer to Recognise that there can DEMO (optional): Demonstrate radiation levels to look at Ideas & make a brief (a be more than one from students’ mobile phones by asking 1 See PRI unit Evidence on X-rays. minute) phone call interpretation of data student to phone another. teachers’ guide & Extension/G+T: or text message to leading to a scientific EXERCISE 1(Independent Learning Activity): worksheets. Students could monitor another member controversy. Use the PRI unit Mobile Phones in small groups to radiation levels near their of the group. Use Be able to contribute to look at the evidence & draw conclusions. See See JIR PowerPoint homes by borrowing the radiation level a group discussion of teachers’ guide sheet for additional information. show: Cooking with meter and pool results as a meter to show ideas (Independent Plenary – Group discussion about results of the IR & Microwaves project. levels detected. Learning Activity). exercises above (may take longer). & KS4 No Messing You may need to Powerpoints book the computer (Waves). room or laptops. Lesson Learning Objectives Content References Homework ideas Risks 3 Be able to explain how Discuss how X-ray machines & photographs work, Web Reader: Finish producing leaflet X-rays and Gamma rays and use PowerPoint show to look at history of X- p50-53 (this would be a good are used in medicine. rays. Mention safety precautions. Extension/G+T: opportunity to use Literacy Recall that UV radiation Read about use of gamma rays for radiotherapy Reading into & ICT skills for research from Sun can cause and as a tracer. Use volunteers to role-play how it Science: & presentation). sunburn & skin cancer. works on a patient. P 52-56 (X-rays: Explain that darker skin EXERCISE: Students can produce a leaflet (in Promises & absorbs more UV and groups) to explain problems of UV radiation & Threats) causes less to reach how it damages the skin (use laptops & library). deeper into body and Plenary – Quick True or False quiz on EM waves. cause cancer. 4 State the conditions Starter - Show students a fibre-optic lamp and ask Co.Ord Worksheet available Should be C3 needed for Total them how light seems able to ‘bend’ if it travels in PHYSICS 3: Internal Reflection. straight lines. Discuss their suggestions. p 90 - 91 Answer Q1- Q3 on p 91 You could show Know about its use in EXPT – Refraction in a semi-circular glass KS4 Waves:TIR fibre optics. block. Discuss results and point out critical angle. Extension/G+T: Boardworks slides Discuss meaning of TOTAL INTERNAL Physics for GCSE: Research into fibre optics 3 – 17 OR KS4 REFLECTION & CRITICAL ANGLE (c). p 135-136 & communications. No Messing DEMO – Passage of light through an optical Students could produce an Powerpoints fibre. Explain again why this happens. advert or brochure for a (Waves) Briefly discuss uses of T.I.R. – prisms, cats’ eyes, new medical endoscope. Extension work on fibre optic cables, etc. Students can make notes. Explaining how it works. communications Plenary – Explain in 25 words why rays ‘bounce’ . has WRL links 5 State the conditions Starter - Recap key ideas about Total Internal Co.Ord Answer Q1- Q3 on p 91 N/A needed for Total Reflection (quiz, or use an OHP image as prompt). PHYSICS 3: Internal Reflection. Show pupils ray diagrams for devices such as p 90 - 91 You could show Know about its use in binoculars, periscopes and endoscopes. KS4 Waves:TIR fibre optics, binoculars, Finish notes & questions about fibre optics. Boardworks slides periscopes, bicycle Discuss lenses and their use in cameras. 3 – 17 OR KS4 reflectors, etc. Plenary – Show some pictures on cartoons of No Messing optical devices and ask students to explain how Powerpoints light travels through them. (Waves) 6 Distinguish between Starter - Ask students what we mean by Analogue Co.Ord Find out how information Should be C3. Analogue and Digital and Digital signals (sketch diagrams on board). PHYSICS 3: is stored on a CD or DVD. signals, using diagrams. DEMO: Use CRO or Picoscope to show P 98 - 101 Recognise some of the difference between ANALOGUE & DIGITAL Extension/G+T task: Ask advantages and signals. Mention that digital signals allow more students to research/write disadvantages of using data to be transmitted with greater accuracy, but about how an analogue Analogue & Digital does require Analogue-Digital conversion. Notes. sound signal (voice) is signals. List some common Analogue & digital devices. sampled & stored in MP3 VIDEO (optional) – Digital World (extracts) format on a computer (good project). Lesson Learning Objectives Content References Homework ideas Risks 7 Recall some examples Starter – Ask students to describe some uses of Co.Ord Co.Ord PHYSICS 3: None of how various EM EM waves in modern communications (IR remote PHYSICS 3: p 99 Q1 – Q6 waves are used for controls, Microwave radio links, light pulses in p 98 - 99 communications, cable TV and satellite radio broadcasts). List on Revise for end of topic test including microwaves board. Worksheets in narrow beams. Brainstorm students to produce a flow chart/ available Extension/G+T: Explain simply how diagram of how satellite communications work: Students could find out ground-satellite radio Data sent to ground station – transmitted to OHP sheets in KS4 about AM and FM, and communications work. satellite receiver dish – processed and transmitted folder produce a guide for Y9 Appreciate that from satellite to ground receiver dish. See OHP students about radio diffraction, reflection sheets. Use Building signals. and refraction will Mention how diffraction, reflection and refraction Blocks to show affect radio affect radio communications (Radio waves diffract Radio & TV You could show Active communications. as they are transmitted from a dish, losing some of animations about Waves: TV Power Point the signal. They reflect from the ionosphere for diffraction. show. long-wave communications. They refract from different density layers of the Earth’s atmosphere). Students make notes. Plenary - Summary of topic (use criteria sheets). This could be done as a Traffic Lights activity 8-9 Recall that earthquakes Starter - Ask students in pairs what they think Co.Ord Answer questions on p 113 N/A produce shock waves, causes earthquakes and how waves produced can PHYSICS 3: and p 115. detected on the surface travel so quickly (several km/s). p 112-115 Worksheet available on You may need to of the earth by Describe P waves (longitudinal) and S waves Seismic Waves. book the laptop + seismometers. (transverse) and the differences between them (P Web Reader: The ‘Earthquake!’ sheet in projector Distinguish between S waves can travel through the Earth’s core, so they p 8-9 Web Reader can be used to and P waves. are the fastest). practise English/literacy The s-cool.co.uk Know that longitudinal DEMO 1: Seismic Wave program (use laptop & Reading into skills and to look at Ideas website has some & transverse waves can projector or network computer room). Science: & Evidence in Science. good revision travel through the Earth, VIDEO – Earthquakes & Seismic waves (Science P 65-67 (Holey material on in different ways. in Focus, tape KK). Earth) Extension/G+T: structure of the Realise how these Describe the internal structure of the Earth & how Students could try one of Earth and S & P waves provide evidence we know this from P and S wave data (this is a You could show the following: waves. of the structure of the favourite exam question). Active Waves: (a) Find out how many Earth, and be able to DEMO 2: Use Building Blocks to show how S Earth PowerPoint earthquakes there are per explain how and P waves travel through Earth & refract. show, or KS4: year of each type on the seismographs are used Structure of the Richter scale. Written work on types of seismic waves and the to find speed of waves. Earth Boardworks (b) Research & describe structure of the Earth (question & research sheet). slides OR KS4 No ways to prevent Plenary – Summary of PD1 work. Quiz on main Messing earthquakes from ideas (revision ‘Millionaire’ game available) Powerpoints damaging tall buildings in (Waves) cities. Lesson Learning Objectives Content References Homework ideas Risks 10 Describe the Starter - Discuss students ideas about how features Co.Ord Co.Ord PHYSICS 3: None composition of the on the Earth are formed and look briefly at some PHYSICS 3: p 117 Q1 – Q5 Earth’s outermost layer old ideas. NB – Plate tectonics is a recent idea! p 116-117 in terms of plates in Establish that Earth’s plates are moving and relative motion. explain what happens at boundaries. Mention how June 2003 Relate plate tectonic this leads to formation of various rocks (p117). periodic exam processes to the Students make a page of notes in their books to Q12c formation, deformation explain ‘everything you ever wanted to know and recycling of rocks. about plate tectonics’. June 2002 Interpret information on EXERC – ICT exercise on plate tectonics (see periodic exam the development of website). Discuss results & conclusions. Q13d ideas in plate tectonics. Plenary – Summary of key ideas on seismic waves & rocks. Quick quiz. 11-12 Explain the nature of Starter - Review Y8 work about basic properties of Co.Ord Answer question on Q 1 – Should be C3 Sound & Ultrasound. SOUND WAVES (longitudinal, vibrations, unable PHYSICS 3: Q3 on p 135 and Q1 – Q6 Recall that Ultrasound to travel through a vacuum, variation of speed with p 104-111 p 111 Ensure that is sound with a density of medium). Students could work in teams students are sat frequency over 20,000 to produce a quick summary sheet as a poster & Web Reader: Worksheets available on behind the safety Hz. display to the class (formative assessment task). p 44-46 Ultrasound & Speed of screen when using Be able to describe DEMOS (optional) – Bell in evacuated jar, Sound waves the vacuum pump. some common uses of Slinky spring. Emphasise sound waves are Reading into ultrasound. longitudinal & need a medium (air) to travel in. Science: Extension/G+T: You could use Discuss nature of ULTRASOUND –emphasise P 28-30 (Little Carry out research into KS4 waves: that it is sound over 20,000 Hz, so we can’t hear it! Bleeders) how Doppler Ultrasound Sound Revise the idea of echo-location using SONAR. works for monitoring Boardworks slides This is why submarines ‘ping’ in war films when June 2004 blood flow, etc. Find out 3 – 37 to support they are hiding from ships using SONAR. periodic exam why pregnant women must work in the lesson. Mention some common uses of Ultrasound, such Q13c drink lots of water before as body scans, destroying kidney stones, sonar, having a scan during cleaning, checking for cracks in pipes ). pregnancy. DEMO: Building Blocks animations on Ultrasound & uses. Students make brief notes. Exercise (optional) – Ask students to choose 1 use of ultrasound and write a page about it for a scientific magazine. They could do additional research at home (formative assessment). Plenary – Ask each table for 2 Ultrasound ‘facts’ and compile a class list/page. 13 Review work covered in END OF UNIT TEST – Using Waves. N/A N/A N/A the topic & assess Review work covered in topic & mark test. students’ understanding.
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