Electromagnetic spectrum

Which electromagnetic waves have the highest frequencies and the shortest wavelengths?

• microwaves

• visible light

• gamma rays

• ultra-violet

For waves travelling in any medium, as the wavelength decreases, describe what happens to the frequency?

• It also decreases

• It stays the same

• It increases

Which electromagnetic waves help doctors detect broken bones inside your body?

• gamma rays

• x-rays

• ultraviolet rays

• infra red

Which of the following lists the electromagnetic waves correctly in order of increasing wavelength?

• X-rays, visible, radio

• Gamma, microwaves, UV

• Infrared, radio, x-rays

• Infra-red, UV, visible

What is the Order of the visible portion of the Electromagnetic System?

• Red,Yellow,Orange,Green,Blue,Indigo,Violet

• Red,Orange,Yellow,Green,Blue,Indigo,Violet

• Violet,Indigo,Green,Blue,Red,Orange,Yellow

• Violet,Blue,Red,Orange,Yellow,Green,Indigo

Shorter Wavelengths have ____Energy,Longer Wavelengths___Energy?

• Lower,Higher

• Higher,Lower

Which of these waves in the e-m spectrum have the shortest wavelength and highest frequency?

• X-rays

• Ultra violet (UV)

• Visible

• Gamma

Which colour in the visible part of the e-m spectrum has the longest wavelength?

• Red

• Orange

• Yellow

• Blue

Which of these colours in the visible part of the e-m spectrum has the shortest wavelength?

• Red

• Orange

• Green

• Blue

Which electromagnetic waves are used for cooking but also in cell/mobile phone communications?

• Infrared rays

• Ultraviolet rays

• Microwaves

• Gamma waves