Physics 4th Q Exam-Electromagnetic Radiation Question Preview (ID: 56487)


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Which is not an electromagnetic wave?
a) gamma rays
b) radio waves
c) visible light
d) Sound

Which electromagnetic wave has the longest wavelength?
a) Radio waves
b) gamma rays
c) microwaves
d) visible light

Which electromagnetic radiation has the most energy?
a) radio waves
b) gamma rays
c) visible light
d) x-rays

Which form of electromagnetic radiation can we see?
a) gamma rays
b) radio waves
c) light waves
d) infrared rays

Electromagnetic waves are
a) transverse waves
b) longitudinal waves
c) sound waves
d) rare to find

what is special about the speed of all electromagnetic radiation?
a) they never travel at the same speed
b) they all travel at the same speed
c) they increase in speed as you go from radio to gamma
d) they decrease in speed as you go from radio to gamma

visible light (white light)is composed of what colors?
a) all of the colors
b) none of the colors
c) orange and blue
d) green and purple

Why does an apple look red?
a) it reflects all colors
b) it absorbs all colors
c) it absorbs red light
d) it reflects red light to your eyes

What is the symbol for the speed of light?
a) c
b) f
c) v
d) T

wavelength is measured in
a) meters
b) miles
c) hertz
d) m/s

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