4.6.2.2

4.6.2.2 Properties of electromagnetic waves 1

4.6.2.2 Properties of electromagnetic waves 1

Content

(HT only) Different substances may absorb, transmit, refract or reflect electromagnetic waves in ways that vary with wavelength.

(HT only) Some effects, for example refraction, are due to the difference in velocity of the waves in different substances.

Students should be able to construct ray diagrams to illustrate the refraction of a wave at the boundary between two different media.

(HT only) Students should be able to use wave front diagrams to explain refraction in terms of the change of speed that happens when a wave travels from one medium to a different medium.

WS 1.2 Use a variety of models such as representational, spatial, descriptive, computational and mathematical to solve problems, make predictions and to develop scientific explanations and understanding of familiar and unfamiliar facts.


Resources

Video

Practicals

Practical

Demo:

Safety

Asthma attack risk for selected student?