The Electromagnetic Spectrum The spectrum of electromagnetic waves is continuous from the longest wavelengths (radio waves) through to the shortest wavelengths (gamma rays). These lower energy waves are used for communications amongst many other applications. registered in England (Company No 02017289) with its registered office at 26 Red Lion Created: Dec 7, 2019| Updated: Feb 18, 2020. When the energy of the radiation is absorbed by the detector it may: When electromagnetic radiation strikes a surface, the intensity of the radiation is the amount of energy arriving at a square metre of the surface each second. The wavelengths are related to the frequencies using the wave equation. All electromagnetic waves are transverse waves that can travel through a vacuum. The spectrum of electromagnetic waves is continuous from the longest wavelengths (radio waves) through to the shortest wavelengths (gamma rays). Our team of exam survivors will get you started and keep you going. More of the radiation energy is absorbed by the material and it heats up. This video provides an introduction to the Electromagnetic Spectrum, This video explains what happens when you mix colours from the electromagnetic spectrum. An exceptional-quality booklet of clear, easy to understand notes on GCSE Physics- The Electronic Spectrum created by a level 8&9 GCSE Student in accordance with the AQA Physics syllabus. that occur in different parts of the spectrum have different uses and dangers - depending on their wavelength and, Home Economics: Food and Nutrition (CCEA). An exceptional-quality booklet of clear, easy to understand notes on GCSE Physics- The Electronic Spectrum created by a level 8&9 GCSE Student in accordance with the AQA Physics syllabus. The resource includes essential content from the GCSE course, laid out in an intelligible and straightforward manner. All of these waves travel at the same speed in free space, which is the speed of light or about 300,000,000 m/s (metres per second). They all travel through empty space at a speed of 300 000 000 m/s. Read about our approach to external linking. Level 9, Grade 9, AQA, Physics, Electronic Spectrum, Waves, OCR, Edexcel, GCSE, analyse, learn, mark, 9-1. Radio, Micro, Infrared and Visible Light. Radio waves have the lowest frequencies and longest wavelengths, while gamma waves have the highest frequencies and shortest wavelengths. Electromagnetic waves form a spectrum of different wavelengths. This spectrum includes visible light, X-rays and radio waves. Radiation is emitted from a source and travels towards a destination. I got a level 8 at GCSE after using this fact sheet! The electromagnetic spectrum is just a name of a range of radiation. Radiation is transmitted from the source to the detector. Key Terms: Square The resource is also suitable for other exam boards such as Edexcel and OCR. The resource is also suitable for other exam boards such as Edexcel and OCR. I often found the GCSE textbooks to be overwhelming and visually intense, so the resource was created to combat this- it obviously worked! The further the radiation travels through an absorbent material the lower its intensity will be when it reaches the end of its journey. The energy absorbed by the surface or detector can be calculated by: Electromagnetic radiation sometimes behaves as waves, and sometimes as packets of energy called photons. Gamma rays have the shortest wavelength, highest frequency and highest energy. Let me tell you what they are: radio waves, microwaves, infrared radiation, visible light, ultraviolet, X-rays, gamma rays. The types of radiation that occur in different parts of the spectrum have different uses and dangers - depending on their wavelength and frequency. The electromagnetic spectrum is a continuous range of wavelengths. I got a level 8 at GCSE after using this fact sheet! Ionise atoms (if ultraviolet, X-ray or gamma). Intensity can also be increased by increasing the radiation from the source. The energy of the photons increases with the frequency of the radiation. Electromagnetic radiation can be useful as well as hazardous. A gamma ray photon has the most energy. On this journey the radiation spreads out, so the further away a detector is from the source the less energy is detected. London WC1R 4HQ. They all travel through empty space at a speed of 300 000 000 m/s. Copyright © 2007 - 2020 Revision World Networks Ltd. Produce small electric currents in aerials (if microwaves or radio waves). On some journeys the radiation is reflected at a boundary between two different materials. GCSE Geography- Comprehensive, Clear Notes, GCSE HISTORY Power and the People Essay (8/8 marks) 'Henry VIII vs Charles I & Parliament', AQA GCSE Physics & Combined Science Physics Required Practical Revision 9-1, NEW AQA GCSE (2016) Physics - Radioactivity. Tes Global Ltd is The intensity of the radiation can be increased by moving closer to the source. 2. The order of electromagnetic waves in the spectrum is shown in the table. Radio waves have the longest wavelength, lowest frequency and lowest energy. The Electromagnetic Spectrum. Sign in, choose your GCSE subjects and see content that's tailored for you. The EM Spectrum. 1. Some materials absorb some types of electromagnetic radiation. Make chemical reactions more likely, for example light causes photosynthesis in plants. Conditions. All electromagnetic waves are transverse waves that can travel through a vacuum. The electromagnetic spectrum is a continuous range of wavelengths. 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