Pre-Assessment (Electromagnetic Spectrum)

Which of these types of electromagnetic radiation has the lowest energy?

• Microwaves

• Radio waves

• Infrared

• Ultraviolet

Which of these types of electromagnetic radiation has the highest frequency?

• Gamma

• X-Ray

• Ultraviolet

• Microwave

Which of these types of electromagnetic radiation has the shortest wavelength?

• Infrared

• Ultraviolet

• Visible

• Radio

What can split white light into its component colours?

• A protractor

• A disperser

• A prism

• A Galvanometer

Which colour of light is refracted the furthest?

• Red

• Green

• Violet

• Magenta

Which type of electromagnetic radiation travels faster?

• Radio waves

• Visible light

• Gamma

• They both travel at the same speed

What is infrared used for?

• Night vision

• Communication

• Cooking

• None of the Above

Which type of electromagnetic radiation is used to sterilize food?

• Alpha

• Beta

• Gamma

• Omega

Which type of UV has the highest hazard level?

• UVD

• UVB

• UVC

• UVA

What type of electromagnetic radiation is used by mobile phones?

• Microwave

• Radio wave

• X-rays

• All of the above