Mr. Ward's Honors Physics Page 2011-12

Last updated: Tuesday, May 22, 2012 21:10

To e-mail me: at at school. Click here for Honors Physics goals 2010.

Rules for solving problems and Kinematics equation sheet >>>Kinematics sheet with Rotation pdf

GRADES - Check your grades and make sure they are accurate. If not, see me ASAP! Bring papers.

SECOND SEMESTER Review - NEW!! -Exam hints!

Test problems and extra credit problems will be taken from these type of problems:

1) Momentum - collisions, elastic or inelastic

2) Angular velocity and acceleration

3) Radial force on a vehicle on a turn

4) Escape velocity

5) Kepler's 3rd law

6) Object rolling downhill using Energy conservation

7) Capacitors/resistors in series/parallel - finding equivalent values, charges or currents

8) Roller coaster problem

9) Torque and equilibrium

10) Electroscope

CALCULATORS - DO NOT forget your calculator on exam day, Friday May 25th. Put it in your shoe or tape it to your steering wheel the night before. I will NOT loan you one. Don't even ask.

FINAL EXAM INFO - See exam schedules posted around school. Review info below, somewhat disorganized, but it's there.

Rocket Exemptions - READ CAREFULLY! These are given to guys who finish in the top three places in each class AND whose grades are 'B' or above. These are the potential names. I have NOT checked the 'B' part yet, but I wanted to get the times up. I will modify these as needed soon. Again, these exemptions are PENDING the 'B' grade. These times are now posted on Haiku.

BOOKS - If exempt, bring your book to 104 with your name in it. If not, bring it to the final or bring it to me before. Make sure your name is in it.

Rocket Finals on Wednesday - NOTE: Only the top THREE teams from each class will go on to the finals on Wednesday, May 23. Have your rocket ready to go! You are NOT required to be in the finals if you don't want to be.

Rocket Grades increase - Teams that finish first, second, or third in the finals on Wednesday, May 23, will have their 2nd semester grade increased by three notchs for first (B > A), two notches for second (B > A-), and one notch for third (B > B+). FIRST PLACE - ( ) - SECOND PLACE - ( ) - Also cash prize winners but no exemption for rocket - THIRD PLACE - ( ) - FOURTH PLACE - ( ) - FIFTH PLACE - ( )

FINAL EXAM EQUATION SHEET Word PDF -Two pages. This is NOT the exact one you will receive on Friday. You may not use your own sheet.

*** Review everything down to the bold blue line. Also, look at old exams. Some problems may come from old exams. ***

Suggested example problems and some worked out problems that may be helpful. These do not cover all topics.

Final Exam covers chapters 6, 7, 8, 15, 16, 17)

ALSO! - Bring your textbook to the test. ALSO, bring your calculator. I will not be loaning them out. Put it in your shoe the night before. Don't step on it Thursday.

Chapter 6 - Momentum and Collisions - Sections 1 - 4
Ex. Problems 1 to 7, quiz

Chapter 7 - Rotational Motion and the Law of Gravity - Sections 1-6
Ex. Problems 1 to 9, 11-14, centripetal acceleration quiz (Word, PDF), centripetal acceleration quiz (Word, PDF), centripetal acceleration quiz (Word, PDF), rotational kinematics quiz (Word, PDF), Also, here are ten 2nd law centripetal acceleration problems. (Word, PDF)

Kepler Problems

1) Mars is 2.278 x 108 km from the sun and takes 687 days to orbit the sun. If Neptune is 4.494 x 109 km from the sun, how long is its year in days? (Use Kepler's third law. Set two equations equal to each other and cancel what you can. You should be left with only T and r to various powers.)

2) The outermost particles in Saturn's rings are 1.35 x 105 km from its center and are moving at 17 km/s. Find the mass of Saturn. (Use Newton's law of gravitation (force) and the radial accelation to find the radial force. Set those equal and solve for mass.)

3) Find the location of the place between the Earth and the moon where the gravitational force on an object of mass m would cancel. (Call the total distance, 3.84 x 105 km D and the distance this place is from the moon x. Write the two force equations and set them equal. Call the mass of the earth me and the mass of the moon mm. The mass of the earth is 5.98 x 1024 kg and the mass of the moon is 7.36 x 1022 kg.)

HW problems -

re = 6.37 x 106 m   me = 5.98 x 1024 kg   msun = 2 x 1030 kg   res = 1.49 x 1011 m

1. (a) How far above the earth’s surface is the gravitational acceleration equal to 1 m/s2?

2. (a) What is the length of the year on the planet Uranus in Earth years if it is 19.182 AU from the sun?  (b) If its mass is 14.5 as large as Earth's and its radius is 25 900 km, what is the surface escape velocity?

3. The moon Nereid has a period of 359.9 days and is 5.56 x 106 km away from Neptune. How far is Triton from Neptune if its period is 5.877 days?  Do not look up the mass of Neptune. Use Kepler's 3rd.

Chapter 8 - Rotational Equilibrium and Rotational Dynamics - All 7 sections
Ex. Problems 1 to 14 torque quiz1 - rotational inertia quiz2

Chapter 8 probs from book - 3, 10, 11, 17, 18, 20, 22, 24, 28

Chapter 8 practice (1) Look at example problems in chapter; (2) torque quiz1; (3) rotational inertia quiz2; (4) practice problems for ch 8 - answers; (5) Practice Test solutions for Ch. 8 part one; (6) Ladder problem

problems for ch 8 - answers
Practice Test solutions for Ch. 8 part one.
Ladder problem

Torque Test answers

Practice Torque problems - due Monday. Answers:
1) (b) F
x = 211 N (c) Fy = 1170 N (d)
ms = 0.18
2) (x
cg, ycg) = (2.63 m, 5.13 m)
3) (a) F
T = 221 N (b) Fy = 13 N, down (c) Fx = 176 N

Chapter 15 - Electric Forces and Electric Fields -
Sections 1-8
Ex. Problems 1, 2, 4.
You should know how to charge objects, such as the electroscope, using conduction and induction. Review electric charge, know Methods of Charging. Concentrate especially on Conduction and Induction.

Chapter 16 - Electrical Energy and Capactitance -
Sections 1-8.

quiz Oops! Used resistor symbol for caps.

Chapter 17 - Current and Resistance -
Section 4
Ex. Problems 1, 3, 6, 7
(1) practice for resistor (2) practice for resistor

HW - p. 219-220 - 22, 24, 25, 26, 28, 49, 51

circular motion

Radial force handout, including various coasters.

A practice sheet on rotational kinematics - answers AND a practice test on rotational kinematics - answers

centripetal acceleration quiz 1 - (Word, PDF).

centripetal acceleration quiz 2 - (Word, PDF).

centripetal acceleration quiz 3 - (Word, PDF).

rotational kinematics quiz 4 - (Word, PDF).

HW and class problems - p. 218 1-9, 11-13, 14, 16, 18, 21, 23


Practice test

Practice test on Energy - Solutions

1) Cons. of energy quiz. (Word, PDF).

2) Cons. of energy quiz, problem 1 only. (Word, PDF).hphw05

34) Cons. of energy quiz5 friction. (Word, PDF).

33) Cons. of energy quiz4 NO friction. (Word, PDF).

32) Cons. of energy friction quiz2. (PDF).

31) Cons. of energy NO friction quiz1. (PDF).


Handout of gravitation and satellite probs. Gravitation and satellite equation sheet. 1-5 due Friday, 6-10 due Monday. Solutions for gravitation and satellite probs.

Handout with some radial force problems.

HW 1-5 for Thursday, 6-10 for Friday

answer key

Class assignment - Momentum problems - problem solutions.

- Practice test problems - problems with answers and solutions. (several pages)

HW - p. 181 1, 2, 5, 10, 11 - problems Due Monday, Feb. 7. Solutions

HW - p.153-155 58, 63, 43, 62, 62 - problems and solutions

HW - due Thursday - p.152, probs 23, 26, 30, 31, 32. Here's an image of the page. Hints coming soon.

HW - due Monday - p.151, probs 1, 4, 6, 10, 19 on work, kinetic energy, gravitational potential energy. Here's an image of the page.


This review material is for you to use as you wish. It is NOT guaranteed to cover everything we did nor is it guaranteed to cover every problem that might appear on the Semester Exam. -

Also, some of the problems/tests/worksheets are older and may differ in style from what I taught you in class. Class examples from THIS year are the way I want you to do the problems.

End of First Semester Review section