Thursday, May 30, 2013
may 30 hw
Do hw 1-40 (omit 6, 10, 23, 26) on the heat wave emr review.These are shorter answer questions and should be half of yesterdays hw.
Wednesday, May 29, 2013
may 29 hw
Finish the first review and all the the second on electricity, magnetism, and power.
This will count as a grade. Show all calculations! There will be a pretest on Monday!
Tuesday, May 28, 2013
may 28th MCAS review
Do the first 50 problems in the MCAS review student resources "Forces review". This is a must, show all work. Your review work counts toward your grade 10% of your term grade. Parents...please make sure this work is completed, there will be two more review sheets given. The test is on June 4th and 5th, Tuesday and Wednesday of next week. This is a lot of material to review, but it must be done in order to pass the Physics exam. Those taking the Technology test will have work from Mr. Hennessy instead.
Thursday, May 23, 2013
test Friday study guide
characteristics of waves: period, frequency; wavelength; amplitude; node; crest ; trough; normal line resting position; calculations of frequency, wavelength and speed of mechanical waves v=freq x wavelength, and electromagnetic waves c=freq x wavelength; definitions of all of the above terms; types of waves and their differences;Sound waves are longitudinal and have areas of compression and rarefactions...travel through a medium, faster in water than air, amplitude measured in decibels; P waves and S waves in earthquakes and the movement through solids and or magma; properties of waves-reflection and law of reflection; focusing off a parabolic reflector and applications; refraction of waves- fish example and mirage; doppler effect and applications police radar gun in a speed trap, and doppler radar for weather forecasting storm movement and tornadoes; Characteristics that make EMR good for communication; no mass to move, energy transfer without mass; moves through space or vacuum; needs no medium; frequency can be changed for encoding; amplitude can also be changed for encoding; the electromagnetic spectrum order and which ones have long wavelengths and low frequencies, and which ones have short wavelengths and high frequencies(and highest and most dangerous energies the last three in particular UV, xray, gamma radiation).
Monday, May 13, 2013
wave outline focus
In the student resources, wave outline has many lessons. focus on 0a,b; 1 a, b, c ,; 2 a-e; 3 a, b,; 4 a.
You should have read all this by next weekend.
Thursday, May 9, 2013
5 9
For Tuesday, start going through all the lessons on waves. You will find the outline on the student resources. We will cover most of this material in the next two weeks.
Friday, May 3, 2013
Test on Tuesday
Test will be on AC DC, Ohm's law V=IR
and P=IV, series and parallel circuits and differences in total resistance and currents, voltages, voltage drops on a resistor in a series circuit, AC and DC generators, electric motors, the magnetic field created by electricity moving through a wire, and how a magnetic field induces current through a wire, parts of electric motor or generator, stator, solenoid, commutator, brushes, law of magnetism and how to control the direction of the magnetic force by changing poles;
strengths of magnetic fields and how to create stronger magnetic fields by: more coils, more voltage, more current, less resistance, greater diameter of wire, less distance between coil and stator,
Make sure to meke a mathematical relationship, is it direct or indirect, give examples. elaborate...
Know how homemade speakers work or how a homemade wind turbine would work for an open response; memorize how an electric generator works, and how an electric motor works
know the conversion of either kinetic E to electrical E or if it's electricalE. to kinetic energy for each.
Good luck
Tuesday, April 30, 2013
4 30 13
There are new resources on electric motors and generators to look at tonight if you are still having trouble.
memorize a sentence of how an electric motor works, and how an electric generator works.
Tuesday, April 23, 2013
Monday, April 22, 2013
Tuesday, April 9, 2013
test friday study guide for Mr Worden in student resources
Note the law of charges is broken up into three parts
law of charges
Coulomb's law
conservation of charges
same ideas but more appropriately named.
Friday, April 5, 2013
4 5 13
I will give a quiz on electrical components, symbols, their functions and whether or not they represent LOAD CONTROL CONDUCTOR OR POWER SOURCE. Good luck
Saturday, March 16, 2013
3 15 13
We will be learning about static electricity.
Please read and go through the tutorials and self quizzes for lesson one and two as outlined on the static electricity link in student resources.
Tuesday, February 5, 2013
2 5 13
Check out heat of fusion; water phase changes and convection, conduction and radiation ion the blog resources and power points.
Thursday, January 3, 2013
Wednesday, January 2, 2013
Wednesday, December 19, 2012
Dec 19th
Do you know the mass of your vehicle? Bring it to class to find out!
I will post the rubric for the essay by tomorrow. The essay is due when you get back from vacation. Great job building and rebuilding your vehicles. Engineering is hard work!
Thursday, December 13, 2012
Wednesday, November 21, 2012
essay grading
I will post a rubric in the student resources. To the best of your ability, match the statements on the rubric to what you have written. For every statement that you make that is essentially the same as the one in the rubric, underline it in colored pen or pencil, and give yourself the number of points allowed. if it says you can get 1 pt then, give yourself only one point ( you can not have more than one point if you offer two similar or even different statements/examples for each category.
There is a maximum of 6 points on the first part (N1 law).
There is a maximum of 7 points on the second part (N2 law).
There is a maximum of 7 points on the second part (N2 law).
There is a maximum of 2 points on the second part (N2 law).
Tuesday, November 20, 2012
nov 20
Essay
Bring to class and keep with you until the final exam!!!
A person has a bow that takes 500N to fully pull back. They have put in the string a 0.1 kg arrow.
Define Newton's three laws in terms of the person shooting an arrow.
Describe what happens, and why it happens for each of Newton's three laws and the forces of friction ( and any other forces on the arrow). Describe what happens to pull back the string, and the result as you let it go. Also describe what could be done or forces on the arrow that would make the same shot go in three different locations other than the target they aim for.
Each idea gets a paragraph,,,example:
define Newton's first law......
it applies to the bow and arrow because...
The arrow if shot over a target would...because....
define Newtons second law...
it applies to the bow and arrow because...
The arrow is shot with more _____ then._______...because
or if the arrow was twice the mass then...because...
define Newtons third law...
it applies to the bow and arrow because...
The force on the string is on the hand of the archer, and the force........because
or the arrow would not go as far if the force...... then...because
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