energy from source to absorber. MS 1a, 1c, 3c Recall and apply the relationship between frequency and wavelength across the electromagnetic spectrum. 4.1.4.4 (HT only) Recall that radio waves can 0.5 Describe how radio waves can How do radios work? be produced by, or can be produced in electrical Radio waves can be Make a simple transistor themselves induce, circuits and also the effect that produced by radio. oscillations in electrical radio waves may have on oscillations in electrical Research the first radio circuits. electrical circuits. circuits. When radio communication sent waves are absorbed across the Atlantic. they may create an How do you make an alternating current with electromagnetic wave? the same frequency as the radio wave itself, so radio waves can themselves induce oscillations in an electrical circuit. 4.1.4.5 (HT only) Recall that different 1 WS 1.2 Why can I get TV signal substances may refract, or at home but not a surfaces act as Construct ray diagrams to reflect these waves; explain mobile phone signal? mirrors when they illustrate the refraction of a
energy from source to absorber. MS 1a, 1c, 3c Recall and apply the relationship between frequency and wavelength across the electromagnetic spectrum. 4.1.4.4 (HT only) Radio waves can be produced by oscillations in electrical circuits. When radio waves are absorbed they may create an alternating current with the same frequency as the radio wave itself, so radio waves can themselves induce oscillations in an electrical circuit. Recall that radio waves can be produced by, or can themselves induce, oscillations in electrical circuits. 0.5 Describe how radio waves can be produced in electrical circuits and also the effect that radio waves may have on electrical circuits. How do radios work? Make a simple transistor radio. Research the first radio communication sent across the Atlantic. How do you make an electromagnetic wave? 4.1.4.5 (HT only) surfaces act as mirrors when they Recall that different substances may refract, or reflect these waves; explain 1 WS 1.2 Construct ray diagrams to illustrate the refraction of a Why can I get TV signal at home but not a mobile phone signal?