Electromagnetic Spectrum: Question Preview (ID: 4903)


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Which of the following are opaque?
a) desk
b) window
c) piece of paper
d) ice

Which of the following are translucent?
a) desk
b) window
c) piece of paper
d) air

Which wave kills skin cells and come from the sun?
a) gamma rays
b) x-rays
c) ultraviolet
d) visible light

Why can electromagnet waves travel through space?
a) EM waves are sound waves
b) EM waves are fast
c) EM waves don't need a medium
d) EM waves don't need a source

Why does laser light travel so far?
a) coherent
b) incoherent
c) many wavelengths
d) small

Which one is in the correct order?
a) visible, ultraviolet, gamma rays, x-ray, radio, infrared
b) radio, infrared, visible, ultraviolet, x-ray, gamma rays
c) radio, ultraviolet, visible, infrared, x-ray, gamma rays
d) gamma rays, radio, x-ray, ultraviolet, visible, infrared

What type of waves are microwaves, radar, and cell phone waves
a) ultraviolet
b) infrared
c) x-rays
d) radio

What is the length of a wave from crest to crest called?
a) trough
b) wavelength
c) crest
d) frequency

What is the peak or top of a wave called
a) trough
b) wavelength
c) crest
d) frequency

What are mechanical waves caused by
a) vibrations
b) wind
c) microwave oven
d) cell phone

What type of waves does sunscreen protect against
a) X-rays
b) ulraviolet
c) infrared
d) radio waves

Which of the following is associated with heat?
a) X-rays
b) ultraviolet
c) infrared
d) radio waves

Where is the retina found in the human eye?
a) in front
b) on the outside
c) in the middle
d) in the back

What type of mirror focuses light
a) regular
b) convex
c) concave
d) unknown

Mircrowaves are a type of
a) radio waves
b) ultraviolet ray
c) visible light
d) X-ray

What type of lens focuses light?
a) regular
b) convex
c) concave
d) unkown

What color is a red apple in blue light?
a) red
b) green
c) blue
d) black

The electromagnetic waves with the longest wavelengths and lowest frequencies are
a) radio waves
b) gamma rays
c) X-rays
d) infrared rays

What is another name for the bending of light
a) luminous
b) refraction
c) reflection
d) illuminated

Electromagnetic waves are transverse waves that transfer
a) sound energy
b) the particles of a medium
c) electrical and magnetic energy
d) photons

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