2015/2016 Assignments

Website Final!

posted Jun 2, 2016, 10:56 AM by Tony Farley   [ updated Jun 2, 2016, 12:10 PM ]

Your website is your final.

You need a good looking homepage that shows off your work in this class.

Add "Recent Announcements" Gadgets to show your latest work on the home page.

Be sure all infographs from recent assignments are on your Waves page.

Check to see if other assignments are missing from your site.

Turn in all Google Doc assignments using the form for that assignment.

Last day to turn things for full credit is Friday. Late work after that will be given 60%.

Use Insert > Recent Posts to add new Recent Post gadgets to your home page. Be sure to select to include thumbnails. Also, title your gadget.

Use Command-shift-4 to make a screenshot of videos and post them to your page.

2. All gadgets should show images as well as the text written in the post. If your posts are missing images, take a screenshot of the video (command-shift-4 and drag a selection) and post this screenshot to the post.  Katya's site below looks good and has recent work showing. The videos and effects posts need images though.

3. Also, remember to write something about what you learned, what you did, and what is in the video for each post. All assignments need this to get 10 out of 10.

4. Go to the Gear and Manage Site to change the colors of your site.

Interference and Beats

posted Jun 1, 2016, 12:51 PM by Tony Farley

Answer all question in a Google Doc and share with tonyfarley@mac.com

Interference:  Run this simulation.  Remember to download it, then go to your downloads folder and right-click on it and select Open.

Click Add Detector  and take a screenshot of the waves and the detector.

1. Click “Two Drips” and move your detector around until you find a place where the wave amplitude is really small and a place where it is really high (add multiple detectors).  This is because the two waves interfere with each other.  Sometimes they interfere and add to each other, and sometimes they subtract.  Screenshot this and explain what the detectors are showing and why.

2. Click on the Sound tab and click the Particles button to show how the air particles move when sound waves pass.  Screenshot this and explain how they move as a sound wave passes.  Look at the X's.

3. Move the Detector to a place where the wave is the largest.  Screenshot this and explain how the particles look when the wave is at its crest and how they look (density of particles) in a trough.  You may need to pause and play the simulation.

4. Press the Light tab and add a detector.  Screenshot this and explain the difference in the wave detected for red light and the wave detected for blue light.

5. Explain what interference is.


Go here to learn about beats. Beats are a special kind of interference where the two waves that are interfering are close in frequency to each other.

1.  Write down what a beat is. Include an image

2. What does the term "in phase" mean?  Include an image that illustrates this

3. When the oscilators are in phase, what is the amplitude of the blue ball?  What is the amplitude when they are out of phase?

4. Screenshot the 1+2 wave in your notes and describe what it is.

6. Explain what the 1+2 wave sounds like in "Hearing the Sum".  What is the frequency of this wave?

6. What are beats? Look here.

Fill in the form here to turn it in.

The Doppler Effect

posted May 31, 2016, 12:02 PM by Tony Farley

Do the Doppler Effect lesson on https://www.thelearningodyssey.com

Electromagnetic Radiation

posted May 26, 2016, 10:53 AM by Tony Farley   [ updated May 26, 2016, 1:54 PM ]

Go to this website and answer the following questions in a Google Doc. Do not copy and paste your answers.

1. List the seven types of electromagnetic radiation.

2. Describe Radio Waves:  What do they come from? Are the wavelengths long or short?

3. Describe Microwaves:  What do they come from? Are the wavelengths long or short compared to visible light?

4. Describe Infrared waves: What can you see with them?  Is the wavelength longer or shorter than red light?

5. Visible Light: What makes it so important?  List the colors.

6. X-rays: What are they used for?  Is the wavelength shorter or longer than visible light?

7. Gamma-Rays: What things emit gamma-rays?  Is the wavelength shorter or longer than x-rays?

8. Are gamma-rays, x-rays, radio waves, and visible light the same thing?  What are they?

9. Describe what a photon is.

10. How fast does an electromagnetic photon travel?

11. Find the wavelength of the following:  Radio wave, Visual, X-ray.

12. Find the frequency of the following: Microwave, visible, gamma ray.

13. What types of electromagnetic radiation can reach the surface of the earth from space?

Fill out this form to turn this in.

Wave Properties Infographic

posted May 23, 2016, 10:06 AM by Tony Farley   [ updated May 23, 2016, 1:09 PM ]

Go to https://www.canva.com and sign up for a free account. Create an infographic with as many the questions from Hiding the Light as you can. Shoot for at least six.

1. Begin by clicking the Create a design button.

2. Then find "Infographic" under Blogging & eBooks

Your infographic should cover these. Explain each concept and illustrate it with an image.

Do not use images that also have text that explains the concept. Use your own words.

Waves carry energy

Transverse Waves

Longitudinal Waves




Constructive interference

Destructive interference


posted May 16, 2016, 1:31 PM by Tony Farley   [ updated May 18, 2016, 1:10 PM ]

Create a Google Doc to answer all of the following questions.


You should know that waves carry energy from one place to another.  Read this page down to the part where it talks about the boat and answer the following questions in your notes and title this section:

  1. List the three examples used to explain how waves carry energy through solids, liquids, and gasses. Find images of each.
  2. For a boat, how do you know energy is being transferred when waves pass? Find an image that illustrates this.

You should know how to identify transverse and longitudinal waves in mechanical media, such as springs and ropes, water, and on the earth (seismic waves).

Title this section


  1. Go to this website to learn about transverse and longitudinal waves.  Find an image that shows each type of wave and describe each kind of wave.
  2. Using the previous page linked here, press the arrows on the bottom right of the simulation to oscillate the medium (green balls) up and down.  Screenshot this motion and label it as transverse or longitudinal.
  3. Click thebutton to make the medium move back and forth in the direction the waves travel. Screenshot this motion and label it as transverse or longitudinal. Describe why it's transverse or longitudinal
  4. Click the up and down motion arrow, screenshot this motion and label it as transverse or longitudinal. Describe why it's transverse or longitudinal.
You should know what the terms Amplitude, Wavelength, and Frequency are and be able to identify them in a wave. Using the same page as beforego to the bottom of the page and answer the following:

Title this section:
  1. Find an image that labels wavelength, crest, amplitude, trough, and equilibrium position or find an image for each.
  2. Click the Amplitude link at the bottom of this page and explain what amplitude is.  Screenshot the pendulum that you create and write its amplitude under the picture.
  3. Click the Wavelength link and explain what wavelength is.  Measure the wavelength of the wave, check your answer, and screenshot the wave with the ruler, your answer, and that you got it right.
  4. Click the Frequency link. This link is actually about The Period, which is the time for one oscillation.  Create a pendulum with a 6 second period. Screenshot this pendulum and describe under the image what you did to make the period 6 seconds.
  5. How is frequency related to period?
  6. If the period of a pendulum is 2 seconds, what is the frequency in Hz?


Two waves passing each other will blend together and interfere with each other.  When high points join, the wave becomes even bigger.  When two low points interfere, the wave trough becomes even lower.  When a peak meets a trough, the two waves combine to make no wave at all.

To understand interference, go to this website.

Fill in the blanks of the following sentences and put them in your notes along with a screenshot showing the situation:

1. When two wave peaks meet, the resulting peak is __________________ compared to each individual peak. Include a screenshot

2. Constructive interference is ___________________________________. Include a screenshot

3. When two waves interfere to create no wave at all, this is called _________________________.  Include a screenshot.

4. Explain how standing waves are created. Include a screenshot.

Save this document. You will add to it next time.

Sound Waves

Take the Superpowers Survey here (only 5 questions).

For all of the following, do not use examples or images from the slideshows. Find your own examples and images.

1. Explain what sound waves are, how they are created, and how you hear them. Include pictures for each.
2. Explain what pitch and frequency is.
3. Find an example of high frequency sound and an example of low frequency sound. Include an image for both.
4. Explain how loudness is measured, what it is, and find an example of a very loud thing and a very quiet thing. Include images for each and how many decibels it is.

Go to Lesson 1 (sound waves)

Find an image and explain what each of the following are. Do not post any images from the slideshows. Find a different image that shows the concept.

Fill out this form to turn your work in.

Take Criminal Justice Survey

posted May 13, 2016, 2:01 PM by Tony Farley

Here it is: https://docs.google.com/forms/d/1Ge4yvFSaiRlvHaN89mQG2Bz0WcZIm3AjgBSgzqfpw-8/viewform?ths=true&edit_requested=true

Cosmos: Hiding the light Infographic

posted May 11, 2016, 9:58 PM by Tony Farley   [ updated May 12, 2016, 11:39 AM ]

 Go to https://www.canva.com and sign up for a free account. Create an infographic with as many the questions from Hiding the Light as you can. Shoot for at least six.

1. Begin by clicking the Create a design button.

2. Then find "Infographic" under Blogging & eBooks

3. Choose any of the designs and alter it to provide information from Hiding the Light.

Remember that you can use Google to search for images that have transparency by using the search tools:

You don't have to, but it looks better on an infographic sometimes.

4. When finished, press the download button, save as a web image, and post this image to your website. CREATE A NEW ANNOUNCEMENTS PAGE CALLED "WAVES" and post this image as a post to this page.

Here are the questions in case you lost them:

1. What does science need to flourish?________________________________________________________________ and why do dictators not like science? ______________________________________________

2. What was one of the original languages of science? ___________________

3. Light moves _______________________________

4. What did Galileo use to discover the universe? ___________________________

5. Hershel discovered what kind of light? ___________________________

6. The distance between adjacent waves is called ____________________________

7. A long pipe makes __________________________________.  A short pipe makes _______________________________________.

8. Just like the wavelength of sound determines the ______________ that we hear, the wavelength of light determines the _________________ we see.

9. Inside a prism, each color moves at ___________________________.

10. What is the most plentiful and simplest atom in the universe? ____________________________

11. When you look at the spectrum of starlight, you can see what? __________________________________________________________

12. Spectral lines revealed that everything in the universe is made _____________________________.

13. List some types of light ____________________________, ________________________,


Post Assignments on Website or Turn in

posted Mar 21, 2016, 10:52 AM by Tony Farley   [ updated Mar 24, 2016, 7:02 AM ]

Check your grades and find, post, do, or turn in assignments that are missing.
Do not copy work. Copiers will get a zero and I'll stop correcting your late work.

1. Go through your website and post your robot and Arduino assignments.

2. Turn in the Arduino and Robot assignments using the forms provided in the assignment.

Make Robot Move and turn

posted Mar 17, 2016, 12:47 PM by Tony Farley   [ updated Mar 18, 2016, 1:14 PM ]

  1. Make your robot move, turn, and move again. It should go in a box shaped path.
  2. Film your successful robot and put the video on your website. Be sure to write a few sentences about it.
  3. Alter the program to make the robot turn left,  then right, or do something else.  Film it and post the video, the program, and an explanation of what you did.

Here's the circuit:

Here's the program to run for #1

void setup() {
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);

void loop() {
  digitalWrite(12, HIGH);   // turns the motors on
  digitalWrite(13, HIGH);  
  delay(1000);                   // wait for a second
  digitalWrite(12, LOW);    // turn the motors off
  digitalWrite(13, LOW);  
  delay(1000);                   // wait for a second
  digitalWrite(12, HIGH);   // turns one motor on to turn the robot
  digitalWrite(13, LOW); 
  delay(400);                       // only turn for two tenths of a second
  digitalWrite(12, HIGH);   // turns turns both motors on to go straight again
  digitalWrite(13, HIGH); 

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