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Physics 4th Q Exam-Electromagnetic Radiation
Test Description: EMS spectrum
Instructions: Answer all questions to get your test result.
1) Which is not an electromagnetic wave?
A
radio waves
B
Sound
C
visible light
D
gamma rays
2) Which electromagnetic wave has the longest wavelength?
A
microwaves
B
gamma rays
C
visible light
D
Radio waves
3) Which electromagnetic radiation has the most energy?
A
visible light
B
x-rays
C
gamma rays
D
radio waves
4) Which form of electromagnetic radiation can we see?
A
gamma rays
B
radio waves
C
light waves
D
infrared rays
5) Electromagnetic waves are
A
longitudinal waves
B
sound waves
C
rare to find
D
transverse waves
6) 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 decrease in speed as you go from radio to gamma
D
they increase in speed as you go from radio to gamma
7) 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
8) Why does an apple look red?
A
it reflects red light to your eyes
B
it absorbs red light
C
it reflects all colors
D
it absorbs all colors
9) What is the symbol for the speed of light?
A
c
B
T
C
v
D
f
10) wavelength is measured in
A
miles
B
hertz
C
m/s
D
meters
*select an answer for all questions
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