Reflection_Refraction_DiffractionLab
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Reflection, Refraction, and Diffraction Lab
The purpose of this lab is to investigate wave interactions. Below are various procedures that you will
conduct for this lab.
In addition to carrying out the procedures, you need to write a formal lab report.
Use the information below to help guide you through writing your lab report.
1.
Write an introduction paragraph related to wave interactions.
Include information about the
different ways that waves can interact and why they interact.
You can also include any
experiences you have had with wave interactions such as echoes.
Introduction Paragraph:
Waves can interact with each other in many ways. Whether
its sound waves spreading around a wall, or light waves from the sun, reflecting off
metal table, waves are going to interact. Reflection waves occur when waves bounce
back after hitting something they cannot pass through. Refraction waves happen when
waves bend due to entering a new medium, or substance. Diffraction is another wave
interaction and occurs when waves spread around obstacles. Finally, interference
occurs when mediums pass through the same place at the same time.
2.
Procedures.
Procedure 1:
Tennis Ball Angles
Materials Needed: tennis ball, wall, masking tape, meter stick or protractor.
1.
Sit on the floor and roll a tennis ball toward a wall directly in front of
you.
Mark this line as the normal line as this will serve as your
reference.
(Note:
it should be perpendicular to the wall.)
2.
Roll the ball at increasing angles to the normal line.
Measure the angle
you will release the ball from the normal line (Angle of
Incidence) and
measure the angle the ball bounces off the wall (Angle of Reflection).
The best way to measure is to use a protractor so you can measure the angle.
However, if you do not have a protractor then use a meter stick or ruler to measure
the distance from where you released the ball to the normal line and then from the
normal line to where the ball reflected.
It is important that you measure at the
same spot so that your measurement will be an accurate representation of the
angle.
Look at the picture below for a visual explanation.
3.
Record measurements in the data table below.
Repeat procedure more
times from various angles.
Bounce Number
Angle of Incidence
Angle of Reflection
1
0 degree
0 degree
2
Positive 15 degrees
Negative 15 degrees
3
Positive 30 degrees
Negative 30 degrees
4
Positive 45 degrees
Negative 45 degrees
5
Positive 60 degrees
Negative 60 degrees
4.
Answer the following Analysis Questions:
What do you notice about the angle of incidence and the angle of
reflection?
The angle of incidence will determine the angle of
reflection. A positive 30-degree incidence will result in a
negative 30 degree reflection.
What can you conclude about the reflection of light based on
this demonstration?
If you were to use a light and the wall in the
same way, the same incidence and reflection ratio will occur.
Shining a light at the wall at a positive 45-degree angle from
your line, will result in a negative 45-degree reflection from
your line.
How would the information you learned from this lab improve a
person’s pool game?
It can help determine what angles you need
to hit the white ball in relation to the other balls, to furthermore
aim the trajectory to the hole.
Provide an explanation on how other waves show reflective
behavior (such as sound waves and ocean waves).
We see a mirror reflecting light waves back at us when we look
at ourselves in the mirror.
Procedure 2:
Pencil in a Glass
Materials Needed: pencil or straw, clear glass, water.
1.
Place a pencil (or straw) in a clear glass of water.
2.
Observe the pencil from the front of the glass.
(Bend down so the glass is at eye
level).
3.
Rotate the glass and make observations.
4.
What do you notice about the pencil?
When the pencil enters the water, the pencil not only appears broken, but it
appears larger. The pencil also appears to be at a different angle when in the
water.
Draw a picture of the pencil and the glass.
Draw the normal line and label the angle of refraction.
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Related Questions
Question 4
Ariyana is studying sound waves and radio waves for a presentation in class. Which of the following questions would be appropriate to ask for this investigation?
A
Why do both sound waves and radio waves have varying frequencies because they are compressible?
B
Why are both sound waves and radio waves able to be transmitted through the air?
C
Why are both sound waves and radio waves blocked by concrete barriers?
D
Why do both sound waves and radio waves require a medium to travel?
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What are the factors that affect how light is observed by the human eye?
2. Give other examples of dispersion, scattering, diffraction, and interference that can be
observed in everyday life
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Refer to the photo below.
a. What happened to the white light when it reflected out in the air? Why the light reflected out in such manner when it is white?b. How did the white light reflect out that way?c. What do you call this kind of phenomenon?
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utton - Science 7-C x
Wave Frequency | CK-12 Found. x
G wave is the number of wave that x
view/practice/physics/wave-frequency-practice&branch%3physics&assignmentid%38512548&referrer%3DGrou
cK-12 wave Frequency
1/10
What is the SI unit for wave frequency? (Spell out the answer.
Do not give the symbol.)
Enter the answer
Check it
20 SCRATCHPAD
A Improve this questlor
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1.Select ONE (1) transducer or sensor with available in the market, with providing the brand, model and technical specification of the selected transducer or sensor, you are required to
i.Explain its designed measurand and the working range.
ii.Explain its basic working principles and any steps required to take in order to avoid any error (ex. Loading error) during measurement process.
iii. Identify either the selected transducer or sensor required a signal conditioner.
iv.Propose ONE (1) cable with is suitable to be connected with the selected transducer or sensor
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TEST I. IDENTIFICATION: Give what is being described in each of the statements below.
waves are used to penetrate solids and are used in doctor's offices and as airports.
is the distance between one point of a wave to the same point in the next wave.
is the number of waves per unit of time.
waves occur when the motion of the medium is parallel to the direction of the wave.
waves have a color spectrum known as ROYGBIV.
waves disturb matter.
1.
2.
3.
4.
5.
6.
7. The
8. The
is the top of a wave.
is the bottom of a wave.
is the maximum distance that matter is displaced from the resting position.
waves are produced by stars and galaxies.
waves occur when the motion of the medium is at right angles (perpendicular) to
9.
10.
11.
the direction of the wave.
waves are often used in heat lamps.
waves are utilized by
waves are transverse waves that disturb electromagnetic fields.
waves have the shortest wavelength and the highest frequency.
12.
13.
sects
locate nectar.
14.
15.
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Help me
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3 Wave properties
A sinusoidal wave, graphed above at time t = 0 seconds, travels right with velocity 8.0 m/s.
Being sure to specify units...
t = 0
y
v = 8 m/s
-7 m
Problem 3.1. What is this wave's amplitude ym?
Problem 3.2. What is its wavelength \?
Problem 3.3. What is its wavenumber k?
5 m
x
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Constants I Periodic Table
(Figure 1) shows a light wave incident on and passing
through a thin soap film. Reflections from the front and
back surfaces of the film create smaller waves (not
shown in the figure) that travel to the left of the film,
where they interfere.
Part A
What is the thickness of the film in terms of the light wavelength inside it?
Express your answer as a multiple of wavelength to two significant figures.
nν ΑΣφ
?
d =
Submit
Request Answer
Part B
Figure
1 of 1
>
Are the reflections from the film surfaces inverted or not?
Reflection from the right surface of the film is inverted while reflection from the left surface of the film is not.
Reflections from the both surfaces of the film are inverted.
Soap film
Reflection from the left surface of the film is inverted while reflection from the right surface of the film is not.
Reflections from the both surfaces of the film are not inverted.
Incident wave
Submit
Request Answer
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of 2000 m/s. What is the frequency and wavelength of the wave in the floor? Explain your steps
show your work.
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Refer to the photo below.
b. How did the white light reflect out that way?c. What do you call this kind of phenomenon?
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a. Explain the empirical relationship between mean ,median and mode for the data of your
own field physics. Ilustrate graphically relative position of mean, median and mode
for frequency curve which are skewed to right and to be left.
b. Explain in your own words that how this course "Probability and Statistics" will be
helpful to solve different problems in the field of Physics? Your answer should not be
matched with other fellows.
THE END
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The lightbulb in (Figure 1) is 50 cm from a mirror. It emits
1.1 W of visible light. A small barrier blocks the direct rays of
light from the bulb from reaching a sensor 70 cm to the right,
but not the reflected rays.
Part A
What is the light intensity at the sensor?
Express your answer with the appropriate units.
HÀ
?
I =
Value
Units
Submit
Request Answer
Provide Feedback
Figure
Mirror
50 cm
Sensor
Barrier
Bulb'
70 cm
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PHET Simulation - Wave on a String
Submit
Previous Answers
v Correct
The effect of damping is akin to the absorbance or partial reflection of light, whore the amplitude of in phase photons becomes reduced.
Part B
Reset the PHET simulation (using the button in the lower tight) and set it up in the following manner select Oscillate, select No End, and use the parameters in parentheses by sliding the bars for Amplitude (1.00 cm). Frequency (2.00 Hz).
Damping (none), and Tension (highest) Using the available Rulers, calculate the frequency of a photon that corresponds to the wavelength of the resulting wave. Assume the length with umits (cm) of the ruler represents the real photon wavelength
and that the spced of light is 3.00 x 10° m/s.
Express the frequency in hertz to two significant figures.
> View Available Hint(s)
ΑΣφ
frequency=
Hz
Submit
Part C Complete previous part(s)
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i) Speed of submarine missile is a function of the pressure, density of
water, volume:
V=k Pªpßvy
Find the dimension of a, B and gamma?
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A. If angles are congruent
C. Then the measures of the angles are equal
4. If garbage is disposed properly, then dengue diseases will be prevented. What do you cali the
underlined portion in this conditional statement?
A. Argument
C. Converse
5. The If-then form of the statement "Parallel lines never intersect," is:
A. If two lines intersect, then they are parallel.
B. If two lines are parallel, then they never intersect.
C. If two lines are not parallel, then they intersect.
D. If two lines, intersect, then they are not parallel.
B. Angles are congruent
D. The measures of the angles are equal
B. Conclusion
D. Hypothesis
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Part A
What is its wave number?
Express your answer with the appropriate units.
HA
Value
Units
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Previous Answers Request Answer
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Responses
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"The newspaper's pages measure 350
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b) Solve for the length of wave in units of meters, showing your work from the equation listed in class or in your text.
c) Give an example of an object that has this length.
d) Which band of the EM spectrum is this frequency or wavelength within?
e) Given reflection, transmission, emission, and absorption, explain which of these interactions of matter involves the ultrasound probe and which of these interactions of matter involves the human tissue?
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details to support your answer.
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a. What is the frequency of the wave in air? Show your work.
b. The same wave has a wavelength of 10 meters in the concrete wall. What is the speed of sound in the concrete? Show your work.
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Please compute the case problem a, b, and c:A 1,000 lumen source is 4 meter away from the center of a screen.The edge of the screen is 5 meters from the light source.a. What is the intensity of the light falling on the center of the screen?b. What is the intensity of light falling on the edge of the screen?Formula:E = I/d^2
Where :
E = is the intensity of the light on the object,lux (lx) or foot candleI = is the intensity of the light at the source,lumen (lm)d = is the distance of the light source from the object,meters or ft.
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Read the instruction and question carefully. And please give answers precisely.
GIVE ANSWER OF EVERY QUESTION AND GIVE REQUIRED EXAMPLES WITH THE ANSWER'S IF
NEEDED.
ANSWER ACCORDING TO THE INSTRUCTION, ME AND MY FRIENDS WILL GIVE YOU
POSITIVE REVIEWS.
Q2.
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Mre =2 has E=05 10%-, Vm. Detormine
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Pls help and show all work and explain everything thoroughly pls. Pls do all questions. Pls pls
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Please answer the questions.
Bending Light
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https://phet.colorado.edu/sims/html/bending-light/latest/bending-light_en.html?screens=1
Use both the Ray and Wave models for light.
a. Write about how each tool helps investigate the behavior of light.
b. Describe the behavior of light when it shines on water. Provide examples for a variety of incident angles to support your description.
c. What changes if the light is underwater and the light goes into air?
d. What changes if you shine light on glass?
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Two students are experimenting with a long
slinky as shown in the diagram below.
mg
If the students shake their slinky so that they
increase the frequency of the waves, what will
happen to the wavelength of the slinky?
The wavelength will increase.
The wavelength will decrease.
The wavelength will stay the same.
The wavelength is unrelated to the
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2,
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Introduction to Two-Source Interference
Learning Goal:
To gain an understanding of constructive and destructive interference.
Consider two sinusoidal waves (1 and 2) of identical wavelength A, period T, and
maximum amplitude A. A snapshot of one of these waves taken at a certain time is
displayed in the figure below. (Figure 1) Let y₁ (z, t) and y2 (x, t) represent the
displacement of each wave at position at time t. If these waves were to be in the same
location (2) at the same time, they would interfere with one another. This would result in a
single wave with a displacement y (z, t) given by
y(z, t)= y(x, t) + y2(x, t).
This equation states that at time t the displacement y (x, t) of the resulting wave at
position z is the algebraic sum of the displacements of the waves 1 and 2 at position z at
time t. When the maximum displacement of the resulting wave is less than the amplitude of
the original waves, that is, when ymax A.
the waves are said to interfere constructively because the…
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