Electromagnetic Waves

Electromagnetic waves vary in

• the speed they travel in a vacuum

• wavelength and frequency

• the way they reflect

• the orientation of their electric and magnetic fields

To calculate the frequency of an electromagnetic wave, you need to know the speed of the wave and its

• wavelength

• refraction

• intensity

• amplitude

Infrared rays have a shorter wavelength than

• Ultraviolet ray

• X-rays

• gamma rays

• radio waves

The full range of frequencies of electromagnetic radiation is called

• visible light

• the electromagnetic spectrum

• radio waves

• invisible radiation

The waves with the longest wavelengths in the electromagnetic spectrum

• Infrared rays

• gamma rays

• radio waves

• X-rays

The visible light spectrum ranges between

• radio waves and X-rays

• infrared rays and ultraviolet rays

• television waves and infrared rays

• ultraviolet rays and gamma rays

What happens to frequency when the energy increases?

• it increases

• it stays the same

• it decreases

Which wave has a greater frequency?

• wave B

• wave C

Select the correct order of waves on the EMS from low to high energy

• Radio wave, Microwave, Infrared, Visible, Ultraviolet, X-ray, Gamma

• Visible, Microwave, Infrared, Ultraviolet, X-ray, Gamma, Radio wave

• Gamma, X-ray, Ultraviolet, Visible, Infrared, Microwave, Radio wave

• Microwave, Radio wave, Visible, Infrared, Ultraviolet, X-ray, Gamma

Which has the LONGEST wavelength and, therefore, the LOWEST frequency/energy

• Gamma Rays

• Visible Light

• Ultraviolet

• Infrared rays