Monday, April 30, 2012

4/30

All students should report to the Media Center.
Bring some paper, a pencil, an equation sheet and a calculator.


Log on to this blog.  Go to http://apphysicsb.homestead.com/review.html .
Choose a subject within Newtonian Mechanics and click on it.  In the window pane on the left (in black) choose "Practice Questions".  Complete the quiz and email me the results (heyesd@calvertnet.k12.md.us).


Choose another subject within Newtonian Mechanics and repeat the process.  If time permits, take a third quiz (which will count as extra credit towards this assignment).


YOU MUST WORK INDIVIDUALLY.

Friday, April 27, 2012

4/27

Objective:  SWBAT determine how well they performed on the FRQ section of an AP Physics B Exam.


Warm Up:  Get out your 2009 AP FRQ's.
A 2.0 kg wooden block is on a level board and held against a spring for force constant 100 N/m which has been compresses 0.10 m.  The block is released and propelled horizontally across the board.  The coefficient of friction between the block and the board is 0.20.  Determine the velocity of the block just as it leaves the spring.  Also, determine the distance the block travels after it leaves the spring.

Thursday, April 26, 2012

4/26

Objective:  SWBAT relate work and energy within a problem (finish forces review- start W, P, E review).


Warm Up:  A 50 kg rider on the "Rotor Ride" stands along a vertical wall in a circular room of radius 3.0 m.  The room begins to rotate and at a certain point the floor drops down several meters, leaving the rider pressed against the wall.  If the coefficient of static friction between the rider and the wall is 0.40, determine the minimum a) speed and b) frequency of rotation required to prevent the rider from slipping down the wall.  ( Hint:  draw a free body diagram of this situation!)

Friday, April 20, 2012

4/20

Objective:  SWBAT review kinematic problems for the AP exam.


Warm Up:  From the top of a cliff overlooking a lake, a person throws two stones.  The stones have identical initial speeds.  However, stone 1 is thrown downward at an angle (theta) that is below the horizontal and stone 2 is thrown at the same angle above the horizontal.  
1)  Draw a sketch of this situation
2) Neglecting air resistance, decide which stone, if any, strikes the water with a greater final velocity.

Thursday, April 19, 2012

4/19

Objective:  SWBAT review projectile motion.


Warm Up:  A projectile is fired with an intiial speed of 113 m/s at an angle of 60 degrees above the horizontal from the top of a cliff 49 m high.  Determine the time to reach maximum height and the total time of flight.

Wednesday, April 18, 2012

4/18

Objective:  SWBAT review  1 and 2 D kinematics in preparation for the AP exam.


Warm Up:  Get out your kinematics outlines and pick up 2 handouts.  On the AP review sheet, list the subject as kinematics and complete question #1.


Agenda:  We will stick to these time frames so KEEP UP!
Review Sheet- 30 minutes
Graphing review packet- 35 minutes
Review Practice Quiz- 25 minutes

Monday, April 16, 2012

4/16

Objective:  SWBAT review for tomorrow's test on atomic physics


Warm Up:  Carbon-14 undergoes beta decay to form Nitrogen-14 plus __________ plus _________.
What type of radioactive decay is this?  What are the missing products?  How much mass is converted to energy in this reaction?

Friday, April 13, 2012

4/13

Oh, Lucky Day!


Objective:  Student will be able to determine the daughter products of radioactive decay.


Warm Up:  Uranium (mass 238) undergoes alpha decay.  What is the daughter product?

Thursday, April 12, 2012

4/12

Seniors- Did you turn in your intent to graduate forms?


Objective:  SWBAT determine the decay products and energy liberated by an atomic reaction.


Warm Up:  Define radiation.  What are alpha, beta and gamma particles?  Where does the energy come from in a nuclear reaction?

Tuesday, April 10, 2012

WELCOME BACK!!


Objective:  SWBAT understand the photoelectric effect, and determine the work needed to free an electron from a metal.


Warm Up:  Turn in your Ch 30 and 31 Outlines and your practice test.  Whose equation is E=hf and what is the importance of this equation?