Radio and Microwaves

Electromagnetic Spectrum

Study Guide Questions

Multiple Choice

1. Arrange the waves according to increasing wavelength:

Ultraviolet Rays, Radio waves, Infrared, Microwave

• Radio>Microwaves>Infrared>Ultraviolet

• Ultraviolet> Infrared Waves > Microwaves> Radio

Multiple Choice

2.Describe the energy from the sun.

• An electromagnetic spectrum that includes Radio waves, micro, infrared, visible, ultraviolet, xray and gamma rays

• A strong energy that heats up the planet and all living organisms.

• A strong radiation that is seen as waves and used up as radiation.

Sun's Energy

All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. 

Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays.

Radiation is one way to transfer heat.

Multiple Choice

3. Use the diagram to answer the questions below.

How are the waves arranged in the spectrum?

• Waves are arranged from low frequency to high frequency, longest wavelength to shortest wavelength

• Waves are arranged according to the energy released.

• Waves are arranged according to it's usefulness and application.

EM Spectrum is arranged according to frequency and wavelength

Multiple Choice

4.What is the relationship between the wavelength and frequency in the spectrum?

• The longer the wavelength, the lower the frequency. The shorter the wavelength, the higher is the frequency.

• The longer the wavelength, the higher the frequency. The shorter the wavelength, the lower is the frequency.

Frequency and Wavelength

Long wavelength - Low frequency

Short wavelength - High frequency

Multiple Choice

5.What is Visible Light?

• The highest energy wave in the EM Spectrum

• The lowest energy wave in the EM Spectrum.

• The only wave that is visible to the human eye.

Visible Light

Multiple Choice

6. Describe the location of the visible light in the electromagnetic spectrum.

• Visible light sits after xrays in the EM Spectrum

• Visible light sits in the region with ultraviolet (UV) to the left of the spectrum and infrared (IR) to the right.

• It has the longest wavelength and sits after microwave.

Visible Light