EM Spectrum

What does reflection mean?

• Soaks up light

• Passes through

• light bounces off

All waves carry

• energy
• light 
• matter
• particles

Cell phones (also have microwaves) and televisions use this type of EM wave. It has the longest wavelength with the lowest frequency.

• Radio Wave

• TV Wave

• Gamma wave

• Ultraviolet Wave

Which portion of the electromagnetic spectrum includes the range of light that can be detected by the human eye?

• ultraviolet light

• visible light

• infrared light

• x-rays

If the wavelength of an electromagnetic wave is increasing, what is true about the energy?

• Energy is increasing

• Energy is decreasing

• Energy is not dependent on wavelength.

• energy is cancelled out

The type of wave with the shortest wavelength and highest frequency. This type of wave is extremely harmful.

• radio

• infrared

• gamma

• x ray

The type of EM wave that is used to cook food. It has a higher frequency (and shorter wavelength) than radio waves.

• radio

• microwave

• gamma

• visible light

The type of wave that can travel through either matter or empty space:

• Mechanical Waves
• Electromagnetic Waves

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

• Gamma Rays

• Radio Waves

• Visible Light

• Infrared rays

Which of the following electromagnetic waves is given off as heat?

• Radio Waves

• Infrared Rays

• Visible Light

• Gamma Rays