Light and the electromagnetic spectrum

True or false: as you move along the spectrum, left to right, the wavelengths decrease in size (get smaller)

• true
• false

Which section of the spectrum is the ONLY one we can see?

• X-rays
• Visible Light
• Gamma Rays
• Ultraviolet Rays

Put the visible light colors in order from longest wavelength to shortest wavelength

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

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

• Radio Waves
• Infrared Rays
• Visible Light
• Gamma Rays

The _______________ determines the color of visible light. 

• wavelength
• speed
• amplitude
• light

How are electromagnetic waves different from other waves? 

• They have very short wavelengths 
• They transmit energy instead of matter 
• They can travel through a vacuum 
• They can change direction by reflection 

Which color has the highest frequency?

• red
• orange
• green
• blue

Which color has the least amount of energy?

• red
• orange
• green
• blue

All electromagnetic waves have the same...

• frequency
• speed
• wavelength
• energy

How much of the electromagnetic spectrum is visible?

• All of it
• None of it
• Most of it
• Only a small part