Waves Wave speed = Frequency x Wavelength Metres/second m/s Hertz Hz Metres m What is the wave speed when the frequency of a wave is 2.5Hz and the wavelength is 4m? What is the wave speed when the frequency of a wave is 5Hz and the wavelength is 10m? What is the wave speed when the frequency of a wave is 12Hz and the wavelength is 2m? 10 m/s 50 m/s 24 m/s

This is a diagram of a wave. Match A,B,C,D with numbers 1,2,3,4 in the table

Many everyday devices use electromagnetic waves… Match the electro magnetic waves (A,B,C,D) with the devices (1,2,3,4) AInfra RedCRadio Waves BMicrowavesDVisible Light

This diagram shows an atom… Match parts of the atom (A,B,C,D) with the labels (1,2,3,4) on the atom. AElectronCNucleus BNeutronD Proton

The graph shows the count rate from a gamma radiation after it has passed through different thickness of concrete. A = 8 B= 12 C = 30 D = 60 The count rate when there is no concrete = ___1___ counts per second. The thickness of the concrete when the count rate is 10 counts per second __2__ cm. The thickness of the concrete needed to reduce the count rate by half = __3__ cm. The reduction in count rate when the thickness of concrete is measured from 30 to 60 cm = __4__ counts per second. A D C B

Electromagnetic Waves can be grouped into types. Each type has a different range of wavelengths. Match the types of radiation (A,B,C,D) with numbers (1-4) in the table. A = Microwaves B = X-Rays C = Visible Light D = Radio Waves