Wednesday, April 30, 2014

Phresman Can't Jump!

Use the information you attained in class to determine your
  • Hang time.
  • Jump Velocity
  • Hint:
PUKE THE LAB before you start.

If Mr. Crane has a vertical of .51M
  • What is his hang time?
  • What is his jump velocity?
  • Is it possible to have a hang time of 1 second?  Draw a diagram with all the important information to illustrate this phenomenon.
  • Is it possible to increase your hang time by running first? Explain your reasoning.  How can you test it?

Click Here you can compare your results to that of world class jumpers

Sunday, April 20, 2014

AP PHYSICS THERMODYNAMICS

Read the Chapters on Temperature and Heat 

Try one of the following AP questions


Check Blog Frequently for updates
Do all posted work including your take home AP test
Print & Complete or copy into notebook
Do Problems 1-8
Resources:
Pencast 1
Pencast 2
Power Points


Objectives

After studying the material of this chapter, you should be able to:
1. Convert a temperature given in degrees Fahrenheit to degrees Celsius and/or degrees Kelvin, and vice versa.
2. State the factors that cause the volume of a solid or liquid to change or the length of a solid to change. Also, solve word problems and determine the final length or volume.
3. Write the mathematical relationships that summarize Boyle's law, Charles law, Gay Lussac's law, and the ideal gas equation. Use these equations to solve word problems.
4. State in your own words Avogadro's hypothesis. State from memory the modern value of Avogadro's number.
5. State the postulates of the kinetic theory of gases.
6. Rewrite the ideal gas equation in terms of motion of the molecules of an ideal gas.
7. Explain what is meant by the term rms velocity.
8. Explain what is meant by Van der Waal's forces.
9. Given a phase diagram for water, determine the range of temperature and pressure at which water is a solid, liquid, or gas. Describe what is meant by the triple point of water and point out the triple point on a phase diagram.
10. Explain what is meant by sublimation and use a phase diagram to determine the range of temperatures and pressures for which the sublimation of water could occur.
11. Explain why evaporation from a liquid is related to the temperature of the liquid and the average kinetic energy of the molecules of the liquid.
12. Explain what is meant by vapor pressure and explain why vapor pressure is related to the temperature of the liquid and the boiling point of the liquid.
~13. Distinguish between relative humidity and absolute humidity and solve word problems related to relative humidity.
~14. Explain what is meant by diffusion and why diffusion is slower through a liquid than through a gas.

Friday, April 18, 2014

Period 4&7 Post Lab Questions HUMAN RXN TIME

You should be have computed your Avg reaction time.
  1. What are the units?
  2. What was your reaction distance?  Why does it need to be in meters?  Why is inches always a bad idea({you know who you are}?
  3. What is your % difference between the avg population?  Avg=.21s
    • Same formula as percent error Hint: Should be in your table of contents
    • Hint: if its not...  your Q4 notebook grade is not going to go well
  4. If Mr. Crane can check the bill which is 15 cm what is his reaction time?
  5. How does his reaction time compare to everyone else?  How does everyone else compare to him? Support with numbers and calculations see #3
    • Explain how this is possible? 
  • Finally- you should have a single page labeled in the back of your notebook and construct a well labeled table of personal information.
    • create an entry for your reaction time  and how it compares to the rest of the population
    • you should include the date time it was calculated and initial it.

Thursday, April 17, 2014

Phresman Break Work

Complete all PUKE for classwork problems on worksheet  "Chapter Problems"
  • Check Blog Daily for the bonus question!
  • Circle all information
  • Box the unknown
  • Draw a picture
  • Make a list with labels of what the quantities represent (Known and Unknown)
    • ex. a car starts from rest  that means Vo=0 m/s
  • Choose an equation and rearrange the variables so it solves for the Unknown
  • Quiz first day back on Puking

Tuesday, April 15, 2014

Modern Marvels Energy

Option 1:
Either discuss the ideas on the blog and look into alternative "alternative" energy.  Feel free to include links to any resources.  Please post your name.
or complete the attached WS

Option 2:
Complete this WS for Thursday

Watch Video Here

Points of discussion :
cost, benefits, limitations technology any thing else you that comes to mind.

Thursday, April 10, 2014

Physics Makes Me PUKE



PWhat does PUKE stand for?
What should you do after reading the question? See Q#1 from class.
Complete 1-5 
Remainder of notes for Baseball Guys

Monday, April 7, 2014

AP WAVES

Day 82 Notes from Class
6. State the conditions necessary for resonance. Give examples of instances where resonance is a) beneficial and b) destructive. Explain how damped harmonic motion can be achieved to prevent destructive resonance.
7. Distinguish between a longitudinal wave and a transverse wave and give examples of each type of wave.
8. Calculate the speed of longitudinal waves through liquids and solids and the speed of transverse waves in ropes and strings.
9. Calculate the energy transmitted by a wave, the power of a wave and the intensity of a wave, across a unit area A.
10. Describe wave reflection from a barrier, refraction as the wave travels from one medium into another, constructive and destructive interference as waves overlap, and diffraction of waves as they pass around an obstacle.
11. Explain how a standing wave can be produced in a string or rope and calculate the harmonic frequencies needed to produce standing waves in string instruments.

Wednesday, April 2, 2014

Phreshman test review packet

Complete packet tonight.  Post ask and respond to questions.  Or else!
P7 Monday
P4 Tuesday

 

ANSWERS

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