Electromagnetic waves

Subject: Physics

Grade: Lower Secondary

Publisher: YDP

Resource types: Whiteboard presentation

Resource ID: g2283
Description:

At the end of this activity, students should be able to:
– define an electromagnetic wave
– explain why light is an electromagnetic wave
– state the relationship between wavelength and wave frequency
– give the approximate speed of an electromagnetic wave in a vacuum
– realise that the speed of light is the fastest rate of information transfer.

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Electromagnetic waves Class activity

Consists of...
Electric field of a... Illustration Electric field changes Animation Electric field changes Whiteboard exercise Magnetic field lines Illustration Magnetic field changes Simulation Magnetic field changes Whiteboard exercise Movement of a magnet Whiteboard exercise Electromagnetic wav... Animation Types of aerials Slideshow Electromagnetic waves Whiteboard exercise Field changes Whiteboard exercise The measurement o... Animation The accuracy of ... Slideshow How to measure the ... Whiteboard exercise Light as an electro... Animation Light as an electro... Whiteboard exercise CPU timing Whiteboard exercise Mechanical waves ve... Animation Parameters of an el... Whiteboard exercise Information transfe... Animation

Relevant to...

Secondary School

Lower Secondary (Grades 7-9)

Physics

Electromagnetic waves

85. Electromagnetic waves

YDP SA

Keywords

light, electromagnetic, transfer, information, speed, field, wave, electromagnetic waves, waves, electric, magnetic

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