EMS, Light Reflection & Mirrors

Which of the following electromagnetic waves has the longest wavelength?

• Infrared Waves
• Ultraviolet Rays
• Visible Light
• Gamma Rays

Which of the following waves in the electromagnetic spectrum has the highest energy?

• Radio Waves
• Ultraviolet Rays
• Gamma Rays
• Infrared Waves

As wavelength decreases in the electromagnetic spectrum the frequency _____. 

• decreases
• stays the same
• increases
• doubles

Which of the following is an example of how we use infrared waves?

• imaging bones
• MRIs
• microwaves
• thermal images

Which color of light in the visible light spectrum has the most energy? 

• Red 
• Yellow 
• Violet
• Green

Visible light has a wavelength range of which of the following? 

• 1mm-km
• 400nm-700nm
• 1mm-700nm
• 400nm-10nm

Exposure to small doses of ultraviolet rays are beneficial to people because___. 

• we then produce vitamin D
• get can get skin cancer
• it can cure most cancers
• we can see the UV rays

Which type of electromagnetic waves is used to image bone? 

• Gamma Rays
• UV Rays
• X-Rays
• B-Rays

Gamma Rays are very harmful to humans because ___. 

• They are very high energy.
• They can penetrate all our tissue.
• they can cause serious illness
• all the above options are correct

Waves with the longest wavelength have the ____ frequency. 

• lowest
• higest