Radio Waves Simplified Revision Notes for GCSE AQA Physics Combined Science

Revision notes with simplified explanations to understand Radio Waves quickly and effectively.

Learn about Electromagnetic Waves for your GCSE Physics Combined Science Exam. This Revision Note includes a summary of Electromagnetic Waves for easy recall in your Physics Combined Science exam

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6.2.7 Radio Waves

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Radio waves are a type of electromagnetic wave with the longest wavelength and the lowest frequency in the electromagnetic spectrum.

Production of Radio Waves:
- Radio waves are generated by oscillations (vibrations) in electrical circuits. When an alternating current (AC) is applied to an antenna, it causes electrons to oscillate, which generates radio waves that can travel through the air and other mediums.
Absorption of Radio Waves:
- When radio waves are absorbed by a conductor, such as an antenna, they induce an alternating current (AC) at the same frequency as the incoming radio waves. This allows the signal to be received and processed by radios, televisions, and other communication devices.

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Radio waves are widely used in communication technologies, such as broadcasting, mobile phones, and wireless networks, due to their ability to travel long distances and penetrate through various materials like walls and buildings.

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