AP PHYSICS B Break Assignment

This should be recorded as an entry in your note book/
Happy River People
http://www.arcadebliss.com/game/rivergame.htm
What are the rules of the game?

Happy River People Part 2
What are the rules of the game?
*if link below does not work click here instead.

Click to Run

Momentum Problems HW DUE

  Fly a Tank?

A. Collisions with Coupling

(See below for answers)

1. A girl, mass 70.0 kg, is running 3.0 m/s east when she jumps onto a stationary skateboard, mass 2.0 kg. What is the velocity of the girl and skateboard assuming they move off together?

2. A wrestler is standing at rest.. Another wrestler, running at 5.0 m/s, grabs him and holds onto him, and the two move off together with a velocity of 2.7 m/s in the same direction in which the second wrestler was running. If the mass of the second wrestler is 100 kg, what is the mass of the first wrestler?

3. A 1 kg glider and a 3 kg glider both slide toward each other at 1 m/s on an air track. They collide and stick. what will be the speed of the combined mass?

B. Collisions without Coupling

(See below for answers)
1. A toy truck, with mass 20.0 g, travels along a level tabletop at 0.50 m/s. A miniature car, with mass 5.00 g, speeds headlong toward the toy truck at 0.75 m/s. Immediately after the collision, the toy truck continues in its original direction at 0.10 m/s. What is the velocity of the miniature car?

2. A 1kg ball moving at a speed of 10 m/s in the positive x direction collides head on with a 2 kg ball at rest. What are the velocities of the 1kg and 2 kg ball after the collision?

3. An 74.5 kg object moving to the right at 34.3 cm/sec overtakes and collides elastically with a second 55.8 kg object moving in the same direction at 16.7 cm/s. Find the velocity of the second object after the collision.

4. In an inelastic collision, is the final total momentum more,less, or the same as the initial momentum?

Phresman Physics Shootn for an A

Objective:
Determine where to place a cup to catch a ball rolled off a ramp.

What are the key ideas:
Things you should be able to answer...

• The horizontal and vertical motion of the ball can be broken in to two separate motions.
• Questions:
• What are the unknowns in the x?
• What can you measure and what can you calculate?
• What are the unknowns in the y?
• What can you measure and what can you calculate?
• What is the variable that is the same for both?
• Which direction allows you to calculate the  time?

Phreshman Physics Bear Necessities

A bear swims across a river 100M wide @ 5m/s due east.  The river flows due South at 10m/s.
How long does it take him to cross the viver?
What is his displacement from the starting point?
What is his speed form the point of view of a person standing on the shore?

Pd9 HW

Due: 3/22 Tomorrow

Period 9 Momentum

Objectives

After studying the material of this chapter, you should be able to:
1. Define linear momentum and write the mathematical formula for linear momentum from memory.
2. Distinguish between the unit of force and momentum.
3. Write Newton's Second Law of Motion in terms of momentum.
4. Define impulse and write the equation that connects impulse and momentum.
5. State the Law of Conservation of Momentum and write, in vector form, the law for a system involving two or more point masses.
6. Distinguish between a perfectly elastic collision and a completely inelastic collision.
7. Apply the laws of conservation of momentum and energy to problems involving collisions between two point masses.
8. Define center of mass and center of gravity and distinguish between the two concepts.




Videos:

• Recoil
• Log Rolling 
• Conservation of Momentum 
•  

Demonstrations:

• Newtons Cradle

PHRESHMAN PHYSICS NEW EQUATION

NEW EQUATION!!!

FREE HW IF YOU HAVE THIS WHEN I SEE YOU NEXT.

• CLICK ON LINK
• WATCH THE PENCAST
• CALL IT DAY S1
• COPY NOTES IN YOUR NOTEBOOK!
• COPY NEW EQUATION INTO YOUR EQUATIONS AND COMPLETE THE CHART
• This Equation is will allow you to solve #5 quickly WITH OUT USING THE QUADRATIC FORMULA OR GUESS AND CHECK.

ADOPT A PHYSICIST Update

Update 

• Read the previously posted questions
• Post only one question at a time.
• Do not post again until your question has been answered
• You may post directly to adopt-a-physicist period 3
• You may also post here if you have gained any insights

AP PHYSICS Electorstatics

Due Tuesday March 19th (CLICK HERE)
  
Notes: Put in Notebook

• Example 1
• Example 2
• 
  

Objectives
Please Start reading electrostatics
After studying the material of this chapter, the student should be able to:
1. State from memory the magnitude and sign of the charge on an electron and proton and also state the mass of each particle.
2. Apply Coulomb's law to determine the magnitude of the electrical force between point charges separated by a distance r and state whether the force will be one of attraction or repulsion.
3. State from memory the law of conservation of charge.
4. Distinguish between an insulator, a conductor, and a semi conductor and give examples of each.
5. Explain the concept of electric field and determine the resultant electric field at a point some distance from two or more point charges.
6. Determine the magnitude and direction of the electric force on a charged particle placed in an electric field.
7. Sketch the electric field pattern in the region between charged objects.
8. Use Gauss's law to determine the magnitude of the electric field in problems where static electric charge is distributed on a surface which is simple and symmetrical.

Phreshman Physics Motion Problem Sets

Instructions:
PUKE in your note book the following problems.

An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.

A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car.


Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.6 seconds, what will be his final velocity and how far will he fall?

A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. Determine the acceleration of the car and the distance traveled.

A feather is dropped on the moon from a height of 1.40 meters. The acceleration of gravity on the moon is 1.67 m/s2. Determine the time for the feather to fall to the surface of the moon.


Rocket-powered sleds are used to test the human response to acceleration. If a rocket-powered sled is accelerated to a speed of 444 m/s in 1.8 seconds, then what is the acceleration and what is the distance that the sled travels?
If you want to see it
http://www.youtube.com/watch?v=s4tuvOer_GI&sns=tw via @youtube

Fc Right Round The Lab
LEARNING GOALS OF THIS LAB:
1. Use your knowledge of Newton’s laws and circular motion to make a prediction about the outcome of an experiment.
2. Apply your knowledge of Newton’s laws to solve a practical problem.
3. Use two independent methods to determine a quantity experimentally.
4. Evaluate simplifying assumptions that you use in your mathematical procedure.

Student Responsibilities.
Record Data in easliy viewable tables
Show a sample calculation for one trial
Calculate % error
state reasons for discrepancies


Lab Data Form

APB Thermodynamics Haiku

Post your Haikus here remember there is a prize for best overall haiku! You can't win if you don't post.

ADOPT A PHYSICIST

*****Post only one question @ a time***

*Its here!  We have our physicists.  I will post info along with instructions ect.
http://www.adoptaphysicist.org/ 
 Pin#:9814

• Adopt a physicist is a way for you to interact with people who work as physicist!  
• You can ask the questions like whats your favorite song?...  
• But more important questions should be asked like 
• what made you chose physics?  
• Were there any other jobs you considered?  
• What else could you do with a physics degree?

• Find Mainland Physics Period 

Instructions:  Post questions on this blog to receive credit  if selected we will ask 1 or all of our adopted physicists.  All blog point will count as double for this assignment.