Edexcel - Light and the electromagnetic spectrum

This lesson is made for the following specification for revision purposes.

Recall that all electromagnetic waves are transverse, that they travel at the same speed in a vacuum [5.7]
Explain, with examples, that all electromagnetic waves transfer energy from source to observer [5.8]
Recall the main groupings of the continuous electromagnetic spectrum [5.10-5.12]
Recall that the potential danger associated with an electromagnetic wave increases with increasing frequency [5.20]
Describe the harmful effects on people of excessive exposure to electromagnetic radiation [5.21]
Describe uses of the electromagnetic radiation [5.22]