Transcript Review of Waves - Rainier Connect

Describe the motion of point 3
as the wave passes going to
the right.
Ans. Updown-up,etc.
The picture on the right is a close-up of
the central region in the picture on the
left. Based on the frequency shift,
which side is rotating away from Earth?
Side A
Side B
Black hole
Ans. B
Close-up of
central region
near black hole
A bat sends an ultrasonic wave that
bounces off of a frog and returns
0.006 s later. If the speed of sound is
330 m/s, how far is the frog from the
bat?
Ans. 0.99 m
What is one wavelength?
0.25 m
Ans. 0.5 m
A sonic measuring
device registers a
distance of 3.45 m
between the
device and the
wall. If the speed
of sound in the
room is 340 m/s,
how long did the
round trip of the
signal take?
Ans. 0.02 s
The speed of sound is
fastest in
•Solids
•Liquids
•Gases
Ans. solids
In an experiment, a tube is
pulled out of water as a 550 Hz
tuning fork rings over the open
end. A resonance is heard.
The tube is then pulled out a
distance of 0.30 m and the next
resonance is heard. What is
the speed of sound in the tube?
Ans. 330 m/s
In what direction is the truck
moving?
Ans. right
Which side of the tornado is
moving toward the radar unit?
Ans. A
Noise-cancellation
headphones work by
__________ interference
Ans.
destructive
A
B
Tuning fork A and B
are the same
frequency. A small
piece of putty is
added to fork B.
What will happen to
the frequency of
tuning fork B?
Ans. decrease
1s
2s
The top two
frequencies
are played
and produce
the beat
frequency
shown in
red. What is
the
difference in
the top two
frequencies?
Ans. 1 Hz
What harmonic is shown?
Ans. 3rd
It takes 10 seconds for 5
complete waves to pass a
point. What is the frequency?
Ans. 0.5 Hz
A light wave is shown below
traveling to the right. The electric
field part of the wave vibrates upand-down. What type of wave is
a light wave?
Ans.
transverse
Is the wave pulse produced in
“Domino toppling” transverse,
longitudinal, or both?
Ans. both
Describe the motion of point 3
after the wave reflects from
the wall and moves toward the
left.
Ans. Downup-down, etc.
What harmonic is shown?
Ans. 1st
When looking at the light from a distant star, the light
is shifted as the star moves in the circular path due
to the gravity of the small unseen planet. Does the
star rotate clockwise or counterclockwise in the
diagram below?
Ans. Counter-clockwise
The distance
between the
Earth and the
Moon is about
3 x 108 m.
If the speed of light
is 3 x 108 m/s, how
long does it take
light to travel from
the Earth to the
Moon?
Ans. 1 s
The hollow crest of the
dinosaur acts as a pipe with
both ends open. If the total
length of the chamber is 1.5 m
and the creature produces a
standing wave in its 3rd
harmonic, what is the
frequency of sound
produced? Use vsound = 340
m/s
Ans.
340 Hz
How does the
wavelength of
the reflected
sound wave
measuring
blood speed
compare to
the incident
sound wave?
Ans. longer
Ans. 2nd
What harmonic is shown?
Eight waves pass a point
every 3 seconds. The
distance between crests is 2
m. What is the frequency of
the wave?
Ans. 8/3 Hz
Eight waves pass a point
every 3 seconds. The
distance between crests is 2
m. What is the speed of the
wave?
Ans. 5.33 m/s
It takes 10 seconds for 5
complete waves to pass a
point. What is the period?
Ans. 2 s
A 550 Hz tuning fork rings
along with another fork (A) of
unknown frequency. A beat
with a frequency of 5 Hz is
heard. A third fork of
frequency 540 Hz produces a
beat frequency of 15 Hz when
ringing with A. What is the
frequency of tuning fork A?
Ans. 555 Hz
The xylophone
rings at its lowest
frequency. What
is the wavelength
at this lowest
frequency?
20 cm
Ans. 80 cm
Connecting points
Ans. 3611 m/s
Waves on the Sun caused by the eruption of a
solar flare. It traveled 1.3 x 107 m in one hour.
What was the speed of the wave (m/s)?
What is the l?
Ans. 5 m
5m
What are the 3 properties of
the image formed?
Ans. Real, inverted, larger
What are the 3 properties of
the image formed?
Ans. Real, inverted, same size
What are the three properties
of the image formed?
Ans. Real, inverted, smaller
What are the 3 properties of
the image formed?
Ans. Virtual, upright, larger