P1a topic 2 0.0 / 5 ? PhysicsElectromagnetic SpectrumGCSEAQA Created by: Emily MarlorCreated on: 25-11-14 19:32 How many types of electromagnetic waves are there? There are seven types of electromagnetic (em) waves. 1 of 7 Do EM waves all travel at the same speed? Yes. All EM waves travel at the same speed. 2 of 7 Do EM waves with higher frequencies have shorter or longer wavelengths? They have shorter wavelengths 3 of 7 What type of wave are all EM waves? They are all transverse waves. 4 of 7 What did Hershel invent in 1800? He discovered infrared radiation. 5 of 7 What did Ritter discover soon after 1801 He discovered ultraviolet radiation. 6 of 7 What can infrared monitor? Radiation 7 of 7
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