AP Physics

Important documents:

Schedule:

May

5/1/17

CLASSWORK

    • Do Now - Practice free response problem
  • Worked on Review Packet

HOMEWORK - Review Packet due Tues May 9th (AP Physics Review Packet Topics doc)

5/3/17

CLASSWORK

    • Do Now - Practice free response problem
  • Worked on Review Packet

HOMEWORK - Review Packet due Tues May 9th (AP Physics Review Packet Topics doc)

5/5/17 - Jeopardy Review Game (https://www.superteachertools.us/jeopardyx/jeopardy-review-game.php?gamefile=1721825)

April

4/4/17

CLASSWORK

HOMEWORK -

4/6/17 - class reviewed for test

4/10/17 - Test!

4/13/17

CLASSWORK

HOMEWORK

  • finish watching the videos and taking notes if not completed in class
  • Chapter 15 Problem Set due Weds 4/19 (Chapter 15 Problem Set doc)

4/17/17

CLASSWORK

    • Do Now: •A block weighing 14.0 N, which can slide without friction on an incline at angle 40.0°, is connected to the top of the incline by a massless spring of unstretched length 0.450 m and spring constant 120 N/m. (a) How far from the top of the incline is the block’s equilibrium point? (b) If the block is pulled slightly down the incline and released, what is the period of the resulting oscillations?
    • Worked on Chapter 15 Problem Set

HOMEWORK - Chapter 15 Problem Set due Weds 4/19 (Chapter 15 Problem Set doc)

4/19/17

CLASSWORK

HOMEWORK - Review Packet due Tues May 9th

4/24/17

CLASSWORK

    • Do Now - Imagine you are pulling horizontally on a child on a swing as shown in the diagram. The child and the seat together weigh 100 N. Take θ to be the angle the rope makes with the horizontal. When θ = 30° what is the necessary force you need to apply to keep the child still?

HOMEWORK - Review Packet due Tues May 9th

4/27/17

CLASSWORK

    • Do Now - Practice free response problem
  • Went over the Chapter 13 test

HOMEWORK - Review Packet due Tues May 9th (AP Physics Review Packet Topics doc)

March

3/2/17 - Test!

3/6/17

CLASSWORK

HOMEWORK - See above

3/8/17

CLASSWORK

    • Do Now - Find the gravitational force acting on m3. Give both the magnitude and the angle.

HOMEWORK - Do the following free response problems - due next class! 1995M3 and 2007M2 pdf

3/10/17

CLASSWORK

    • Do Now: Which concepts did you feel confident about on the last test? Which ones do you think you could have studied more?
  • Partner test

HOMEWORK - Grade yourself on 1995M3 and 2007M2 - here are the Scoring Guidelines: 1995M3Scoring and 2007M2Scoring

3/14/17

CLASSWORK

    • Do Now: A hoop of mass M and radius R rolls without slipping down an incline as shown. The coefficient of friction between the hoop and the surface of the incline is μ. Find (a) the linear acceleration of the hoop and (b) the minimum coefficient of friction required to prevent slipping (c) Is this static or kinetic friction? Explain your answer.

HOMEWORK - Chapter 13 Problem Set (Chapter 13 Problem Set doc) due Tues 4/4/17

3/27/17

CLASSWORK

    • Do Now: A planet of mass m is orbiting a star of mass M at a distance of R from the star’s center. Setting Fg = Fc, prove Kepler’s Third Law
  • Work on problem set

HOMEWORK -Chapter 13 Problem Set (Chapter 13 Problem Set doc) due Tues 4/4/17

3/29/17

CLASSWORK

HOMEWORK -Chapter 13 Problem Set (Chapter 13 Problem Set doc) due Tues 4/4/17

3/31/17

CLASSWORK

    • Do Now: If the legendary apple of Newton could be released from rest at a height of 2 m from the surface of a neutron star with a mass 1.5 times that of our Sun and a radius of 2 km, (a) what would be the apple’s speed when it reached the surface of the star? (b) If the apple could rest on the surface of the star, what would be the difference between the gravitational acceleration at the top and the bottom of the apple? Assume the apple has a height of 0.1 m.
  • Watch Chapter 15 Videos Parts 1, 2, & 3 and take notes
  • Do Chapter 15 Problems 3, 11, 27, 35

HOMEWORK -Chapter 13 Problem Set (Chapter 13 Problem Set doc) due Tues 4/4/17

February

2/2/17

CLASSWORK

    • Do Now - In the figure, block 1 has mass m1=160 g and block 2 has mass m2=500 g. The pulley, which is mounted on a horizontal axle with negligible friction, can be modeled as a solid disk with radius R= 5 cm and M = 0.8 kg. When released from rest, (a) What is the magnitude of the acceleration of the blocks? What are (b) tension T1 and (c) tension T2? (d) What is the magnitude of the pulley’s angular acceleration?

HOMEWORK - Chapter 10 Problem Set due Weds 2/8 (Chapter 10 Problem Set doc)

2/6/17

CLASSWORK

    • Do Now - •This fixed spherical shell has a mass of 3 kg and a radius of 0.15 m. The hanging mass (4.2 kg) starts out at a height of 0.4 m. Use conservation of energy to figure out what speed it hits the ground with.

HOMEWORK - Chapter 10 Problem Set due Weds 2/8 (Chapter 10 Problem Set doc)

2/8/17 - students worked on Rotational Motion Chapter 10 Practice Problems (Rotational Motion Ch 10 Practice Problems doc)

2/10/17

CLASSWORK

HOMEWORK - Rotational Motion Chapter 10 Practice Problems due Tuesday

2/14/17

CLASSWORK

    • Do Now - Three beads, each of mass m, are arranged along a rod of negligible mass and length L. Figure out the rotational inertia of the assembly when the axis of rotation is a) through the center and b) through one of the beads on the ends.
    • Notes on Chapter 11 (Chapter 11 ppt) - got up to slide 13

HOMEWORK - watch the 3 videos and take notes

2/16/17

CLASSWORK

HOMEWORK - Chapter 11 Problem Set (Ch. 11 Problem Set doc) due Fri 2/24

2/22/17

CLASSWORK

HOMEWORK

2/24/17

CLASSWORK

HOMEWORK

2/28/17

CLASSWORK

HOMEWORK - Chapter 10/11 Test will be Thurs 3/2 - here's a review sheet: AP Physics Review for Test 6

January

1/3/17

CLASSWORK

HOMEWORK

1/5/17- Snow Day!

1/6/17

CLASSWORK

    • Do Now - problem from Princeton Review: An object of mass m moves with velocity v toward a stationary object of mass 2m. After impact, the objects move off in the directions shown in the following diagram. (a) Determine the magnitudes of the velocities after the collision in terms of v. (b) Is the collision elastic? Explain your answer.
    • Finish Momentum in 2-D
    • Work on Chapter 9 Problem Set and watch Chapter 9 homework videos

HOMEWORK

1/10/16 - Ms. Cohen absent - class worked on problem set

1/12/17

CLASSWORK

HOMEWORK

    • Chapter 9 Problem Set (Chapter 9 Problem Set) - due 1/17
    • Lab report due 1/19
    • Chapter 9 test will be on 1/23

1/17/17

CLASSWORK

HOMEWORK

    • Lab report due 1/19
    • Chapter 9 test will be on 1/23

1/19/17

CLASSWORK

    • Practice Free Response Problem 2004M1 (2004M1)
    • Worked on review sheet for test

HOMEWORK - study for test next class!

1/23/17 - Test!

1/25/17

CLASSWORK

    • Do Now - A block of mass 2m moving with a speed v collides elastically with another block of mass m initially at rest. What are the velocities of the blocks right after the collision?
    • Notes on Chapter 10 - got up to slide 9 (Chapter 10 Rotational Motion ppt)

HOMEWORK - Rotational Problems (Rotational Problems HW doc)

1/27/17

CLASSWORK

HOMEWORK

1/31/17

CLASSWORK

    • Do Now - A disk, initially rotating at 120 rad/s, is slowed down with a constant angular acceleration of magnitude 4.0 rad/s2. (a) How much time does the disk take to stop? (b) Through what angle does the disk rotate during that time?
    • Notes on Chapter 10 - got up to slide 30 (Chapter 10 Rotational Motion ppt)

HOMEWORK - Chapter 10 Problem Set due Weds 2/8 (Chapter 10 Problem Set doc)

December

12/1/16

CLASSWORK

    • Do Now
        • Percy (mass 2 kg) slides to the east at 4 m/s in Ms. Cohen’s suddenly frictionless apartment. His Mommy throws his favorite toy to him, a 0.3 kg toy guinea pig, at 7 m/s from an angle of 20° north of east. Percy then catches the toy in his mouth, and he and the toy slide together at some speed and angle. Find the final speed and angle of the combined kitty and guinea piggy.
    • Worked on Momentum in 2-D, Review for Test 4, and review for final

HOMEWORK

    • Study for Wednesday's test!
    • Finals Information: The final will cover One Dimensional Kinematics, Two Dimensional Dynamics, Linear Dynamics, Circular Dynamics, and Work and Energy. Momentum and Center of Mass will NOT be in the final. The final will take the full two hours and will have about 10 multiple choice questions and 6-7 Free Response questions. Here is the AP Workbook: Ap Physics Practice Workbook. My suggestion is to complete 10-15 multiple choice and 5 free response for each unit.

12/5/16

CLASSWORK

    • Do Now
    • Study for Wednesday's test and the final

HOMEWORK - study for Wednesday's test!

12/7/16 - Test!

12/9/16 - study for final!

November

11/2/16

CLASSWORK

HOMEWORK

    • Study for Friday's test!
    • Lab report due Thurs 11/10

11/4/16 - Test!

11/8/16

CLASSWORK

    • Do Now - A particle is subject to a force Fx that varies with position as shown in the graph below. Find the work done by the force on the particle as it moves from 0 m to 30 m.

HOMEWORK

11/10/16

CLASSWORK

    • Do Now - Chapter 8 Problem 13
    • Did Chapter 8 Problem 14

HOMEWORK - Chapter 7/8 Problem Set due Monday

11/14/16

CLASSWORK

HOMEWORK - Chapter 7/8 Problem Set due Monday

11/16/16

CLASSWORK

HOMEWORK - finish Conservation of Momentum Practice Problems not completed in class

11/18/16

CLASSWORK

    • Do Now - Giancoli Chapter 7 #39: A 15.0 kg object moving +x direction at 5.5 m/s collides head-on with a 10.0 kg object moving in the −x direction at 4.0 m/s. Find the final velocity of each mass if (a) the objects stick together; (b) the collision is elastic; (c) the 15.0 kg object is at rest after the collision; (d) the 10.0 kg object is at rest after the collision; (e) the 15.0 kg object has a velocity of 4.0 m/s in the −x direction. (f) Are the scenarios and results in (c), (d), and (e) “reasonable?” Explain.
    • Class finished Elastic Collisions Using KE (Elastic Collisions Using KE doc)
  • Did problem 1 from Momentum in 2 Dimensions (Momentum in 2D)

HOMEWORK - nothing new

11/22/16

CLASSWORK

    • Do Now - Use the impulse-momentum theorem to solve: A 2.0 kg cart is traveling at 3 m/s at time t=0 when it encounters a force that varies with time as shown in the graph. What is the speed of the cart at t = 2s?
  • Went over all of Test 3 with the class
    • please see me outside of class time to go over the test with me if you were absent!

HOMEWORK - test corrections due Thurs 12/1 - for each question you got wrong, explain in words WHY you got it wrong and clearly show exactly how to get the correct the answer

11/29/16

CLASSWORK

    • Do Now - problem from Princeton Review Book

Full solution for Do Now: Princeton Review Chapter 7 Problem 2 Solution

HOMEWORK

October

10/4/16

CLASSWORK

    • Do Now - Ginny is playing Chaser in a Quidditch match! She and her broom are at 24.5 m above the ground and 7 m away from the goal hoop. The bottom of the hoop is 15 m high, with the diameter of the hoop being 0.61 m. Ginny shoots the quaffle at 6 m/s at an angle of 15 degrees below the horizontal. Does the quaffle make it into the hoop?
    • Notes on Friction and Inclined Planes (Friction and Inclined Planes ppt)
    • Did Chapter 5 Problems 23, 24, 25, & 26

HOMEWORK

10/6/16

CLASSWORK

    • Do Now - This 64 N box is at rest. Find T1, T2,and T3.

HOMEWORK - finish whatever Force Problems you did not get done in class

10/10/16

CLASSWORK

    • Do Now - The surface of the incline is frictionless. Find the acceleration of the system and the tension in the string.

HOMEWORK - lab report due Mon

10/17/16

CLASSWORK

    • Do Now - A block starts from the bottom of a ramp of velocity up the ramp of 4 m/s. The ramp is at an incline of 37° with the horizontal. The coefficients of friction for the block on the ramp are: μs = 0.6 and μk = 0.5. The block slows as it slides up the ramp and eventually stops. Will the block remain at rest or will it slide down the ramp again?
    • Notes on Resistive Forces (Resistive Forces ppt) and Uniform Circular Motion (Uniform Circular Motion ppt)
    • Got problem 1 done on Circular Motion Problems worksheet (Circular Motion Problems doc)

HOMEWORK - Ch.5 Problem Set (Chapter 5 Problem Set doc) due next Tues

10/19/16

CLASSWORK

HOMEWORK

10/21/16

CLASSWORK

    • Do Now - Find the acceleration, T1, and T2. Everything is frictionless.
    • Students worked on the Ch.5 Problem Set, Test 2 Corrections, Test 2 Score Recovery, Circular Motion Problems, and Coffee Filter Lab

HOMEWORK

10/25/16

CLASSWORK

    • Do Now - As shown in the accompanying figure, a force F = 22 N is exerted at an angle of θ = 48°. The block has a mass of 3 kg. The coefficient of kinetic friction is µk = 0.15. What is the acceleration of the block?
    • Went over Additional Problem 6 from Problem Set
    • Got up to slide 25 in Chapter 7 Powerpoint (Chapter 7 Powerpoint)

HOMEWORK

10/27/16

CLASSWORK

    • Do Now - Chapter 6 Problem 58
    • Notes on Chapter 7 & 8, plus sample problems (Chapter 7 & 8 Notes)

HOMEWORK

    • Chapter 6 Mini Problem Set due Monday - Chapter 6 Problems #7, 9, 15, 17, 19
    • Test on Chapters 5 & 6 will be next Fri - here's a review sheet: Review for AP Test 3 doc

10/31/16

CLASSWORK

HOMEWORK

    • Conservation of Energy Problems due next class
    • Test on Chapters 5 & 6 will be next Fri - here's a review sheet: Review for AP Test 3 doc

September

9/1/16

CLASSWORK

HOMEWORK

    • Lab report due Tues
  • Test will be next Thursday - here is a practice test: AP Practice/Review for Test 1\ . It will help, but you are not required to do it.

9/6/16

CLASSWORK

  • Do Now - An airplane flies 180 km at 15° North of East, then 150 km west. What is the airplane’s resultant displacement? Give the magnitude, units, angle, and direction words.
  • Did this problem, too: While solving a mystery, Sherlock Holmes paces 20 m at 45° N of E, then 25 m at 30° E of S, then 15 m at 20° S of W. What is his resultant displacement? Give the magnitude, units, angle, and direction words.
  • Students did #1-8 on Vector Problem Set (Vector Problem Set)

Extra practice vector videos:

HOMEWORK - study for the test next class!

9/8/16 - Test!

9/12/16

CLASSWORK

    • Do Now - A hiker begins a trip by first walking 25.0 km southeast from her car. She stops and sets up her tent for the night. On the second day, she walks 40.0 km in a direction 60.0° north of east, at which point she discovers a forest ranger’s tower.
    • Class signed up for Chapter 3/4 Problem Set time slot
    • Notes on Vectors and Projectile Motion (More Vectors and Projectile Motion ppt)
    • Class began Horizontally Launched Projectiles worksheet (Horizontally Launched Projectiles doc)

HOMEWORK

9/14/16 - Ms. Cohen not here- class worked on problem set

9/16/16

CLASSWORK

HOMEWORK

9/20/16

CLASSWORK

HOMEWORK - Problem set will now be due on Thurs 9/22. Also, I meant it to be problem 51, not 52 in chapter 4

9/22/16

CLASSWORK

    • Do Now - A rowboat can go 2.3 m/s in still water. It wants to end up across a stream at a point directly north from where it starts. At what angle should it point if the river current is 1.9 m/s east?
    • Went over #2 from Test 1
    • River Crossing Virtual Lab (River Crossing Virtual Lab doc)
    • Class started test corrections for Test 1

HOMEWORK

  • Test corrections due Monday
  • Our next test will be Fri 9/30. Here is a review: Test 2 Review

9/26/16

CLASSWORK

HOMEWORK - study for Friday's test! Test 2 Review

9/28/16

CLASSWORK

HOMEWORK - study for Friday's test! Test 2 Review

9/30/16 - Test!

August

8/15/16

CLASSWORK

  • Went over syllabus
  • Went over Lab Safety Contract
  • Icebreaker - which quote do you most identify with?

HOMEWORK

8/16/16

CLASSWORK

    • Do Now - read the General Problem Solving Steps and write one sentence about how you can improve your problem-solving skills
    • Notes on Measurements in Physics and P-t graphs (Intro to Physics)
    • Analyze p-t graphs as a class
    • Analyze p-t graphs on your own (Analyze Position-Time Graphs)

HOMEWORK - Graphical Analysis (Graphical Analysis)

8/18/16

CLASSWORK

    • Do now - Sketch a position-time graph of the following scenario: Percy (Ms. Cohen’s cat) starts from rest and runs South in Ms. Cohen’s apartment. It takes him a few seconds to get up to a constant speed, which he maintains for several seconds until he spots an exciting sock to the North, turns around, and scampers toward it. He then remains at rest (relative to the origin) while attacking the sock. Percy then decides his Mommy is a more exciting thing to attack, so he walks to the North and bites her leg.
    • Lecture on Velocity-time graphs (Velocity-Time Graphs ppt)
    • Match the Graph Lab (Match the Graph)

HOMEWORK - Translate the p-t graphs from last class into v-t graphs.

8/22/16

CLASSWORK

  • Do now - Translate the following position-time graph into a velocity-time graph. Draw to scale!

HOMEWORK

8/24/16

CLASSWORK

    • Do now - List at least two things you learned from the homework videos.
    • Notes on Free Fall (Free Fall)
    • Kinematics Problems (Kinematics in 1D doc) - class got about halfway through

HOMEWORK - get two problems done on problem set. Remember, it’s due on Tuesday!

8/26/16

CLASSWORK

  • Do Now - Chapter 2 problem 11
  • Finish Kinematics Problems (Kinematics in 1D doc) from last class
  • Class worked on problem set

HOMEWORK - Chapter 2 Problem Set due Tues 8/30 (Chapter 2 Problem Set)

8/30/16

CLASSWORK

HOMEWORK

    • Lab report due Tues
  • Test will be next Thursday