Question 1 (3 points)
(11.10_Q1) Which kind of wave brings us the suns energy thru the vacuum of outer space?
Question 1 options:
sound waves
mechanical waves
electromagnetic waves
surface waves
Question 2 (3 points)
(11.10_Q2) What is the relationship between a reflected wave's "angle of incidence" and "angle of reflection"?
Question 2 options:
Those 2 angles add up to 180 degrees
those 2 angles are always equal
those 2 angle add up to 90 degrees
The "angle of reflection" minus the "angle of incidence" equal 45 degrees
Question 3 (3 points)
(11.10_Q3) Electromagnetic waves can refract. Refraction is how a prism separates white light into its individual colors. Refraction occurs when light at a non-right angle goes into a new transparent medium with a different Index of Refraction and
Question 3 options:
the transparent medium slows down the speed of light
the transparent medium acts like a lens and make an image seem bigger
the transparent medium acts like a mirror
Question 4 (3 points)
(11.10_Q4) Mechanical waves are
Question 4 options:
propagated by the motion of the medium particles
propagated by a good PR group
able to travel thru a vacuum
Question 5 (3 points)
(11.10_Q5) In a longitudinal wave, like a sound wave, the medium particles
Question 5 options:
move back and forth perpendicular to the direction of the wave
move back and forth parallel with the direction of the wave
move with the wave all the way thru the medium
move in little circles
Question 6 (3 points)
(11.10_Q6) Waves do not convey the medium particles which propagate them. But waves do carry 2 things. What are the 2 things?
Question 6 options:
energy and information
mass and volume
protons and neutrons
Question 7 (3 points)
(11.10_Q7) Which of the following is an example of frequency?
Question 7 options:
10 seconds to complete 1 wave cycle
15 cm between wave crests
wave traveling at 5 cm/s
12 complete wave cycles in 1 second
Question 8 (3 points)
(11.10_Q8) The meeting of 2 wave crests in the same place and time is called "constructive interence" and it results in ______________________.
Question 8 options:
the absence of any wave
a huge wave, because the 2 waves multiply each other
a bigger wave because the 2 waves add together.