Gravity

Motion pHet Labs

Today, you are going to explore two virtual labs. Use the pdf that I emailed earlier to complete your assignment. Put your answers in Pages, and email your assignment at the end of class.

Forces and Motion:  http://phet.colorado.edu/en/simulation/forces-and-motion
Projectiles:  http://phet.colorado.edu/en/simulation/projectile-motion

REMEMBER:  Click the green "Run Now" button to use the tutorial.
 ----ALSO, you cannot use these tutorials on your iPad, because they require Flashplayer...use a computer for the virtual lab, but put your answers in Pages!

Motion Graphs and Inclined to Roll Lab

-You've received an email, today.  Open the attachment in iBooks and complete your work on graphing in a Pages document titled: "Motion Graphs and Inclined to Roll Lab"

-Inclined to Roll Lab

1.     Develop a question and hypothesis regarding how a car’s speed is affected by a hill’s angle.

2.     Collect the following: toy car, meter stick, protractor, tape, wooden board, small piece of cardboard, supports to prop up the board (like books), and a stopwatch (your iPad can function as a protractor and stopwatch).

3.     Mark a starting line, in tape, on your board.  Mark a finish line, in tape, on the floor about 1.5 m from the board.  Measure your total distance from starting to finish and record somewhere.

4.     Investigate your hypothesis!  Consider using multiple trials for accuracy!

5.     Record your data in Pages.

6.     Create a graph from your data.

-Answer the following questions for a conclusion:

1.     Which is your manipulated variable and which is your responding variable in this experiment?  Explain.

2.     Describe the relationship between the car’s speed and the angle of the ramp.  Give examples from your data.

3.     Describe any flaws or inaccuracies in your results.  Were your measurements of distance, angles and time accurate?  How might they be improved.

Classwork 1/18-1/19 & 1/20-1/23

1.  Doppler Effect Writing Prompt
    -Read pages 46-47
    -Create a pages document for today (subject heading as the date)
    -You hear the faint sound of a helicopter in the distance.  Describe what is happening as the sound approaches.
    -Would you hear a change in pitch if you are on a moving train and the train's whistle blows?  Explain.

2.  EMS movie
    -create a diagram of the Electromagnetic Spectrum
    -label each type of wave
    -include some type of picture/example of that electromagnetic energy
    -come up with an original mnemonic device to remember the order of the waves.

3.  Prisms and Spectroscopes
    -Experiment with the prisms and spectroscopes
    -Describe how this works and what you are seeing on today's Pages document

4.  Explain the following on your Pages document in AT LEAST 3 SENTENCES
    -Why/how do we see colors?
   -What if our eyes could see the entire electromagnetic spectrum?
    -Which type of wave is most important to you and why?

Introduction to Waves

Go to Pearson's textbook login: 
https://www.pearsonsuccessnet.com/snpapp/login/login.jsp

Once you are logged in, go to the "Sound and Light" textbook.  We will be working with this text for the remainder of the semester, focusing on waves and sound.  Use Chapter 1 (Characteristics of Waves), Sections 1 and 2 to help you with the following task.  Be sure to use the videos, as well...they are really helpful.  You may work in a group of 2, no more:

Create a Keynote presentation, using Doodle Buddy to create pictures (all pictures used must be made by your group).  Include the following:

1.  Explain how waves transfer energy and what causes waves.  Include LABELED pictures with your description.

2. Describe transverse and longitudinal waves.  Include LABELED pictures with your descriptions using the slinky provided.

3. Describe amplitude, wavelength, and frequency in relation to transverse and longitudinal waves.  Include LABELED pictures with your descriptions.

4.  Project Piece

Some waves involve repeating patterns, or cycles. Any motion that repeats itself at regular intervals is called periodic motion. The hands moving on a clock, a child swinging on a swing, and a Ferris wheel going round and round are examples of periodic motion.

Your GoalTo find original examples of periodic motion and describe them
To complete this project you must

• identify examples of periodic motion or events that have periodic characteristics
• collect and organize data on the frequency and duration of each event
• present your findings

Project Directions Plan It With your group, brainstorm examples of objects or events that go back and forth or alternate from high to low, dark to light, loud to quiet, or crowded to uncrowded. Select at least two objects or events to observe. Your observations can be from video found online or something around campus.  Record data such as how long it takes for the event to finish and start again or the highest and lowest point of the object’s motion. Finally, organize your findings to present in your Keynote.