Thursday, December 15, 2011

Revised Mouse Trap Vehicle Grade Scale

In light of the fact that this year project grades are based on two separate test, the new grade scale is as follows:

D = 10-12.99 meters

D+ = 13-14.99 meters

C- = 15-16.99 meters

C = 17-18.99 meters

C+ = 19-20.99 meters

B- = 21- 23.99meters

B= 24- 27.99 meters

B+ = 28-29.99 meters

A- = 30 -32.99meters

A = 33-34.99 meters

A+ beyond 35 meters

Tuesday, December 13, 2011

Link to Coefficients of friction

Here is a link to table of coefficients of Friction. Make sure to only look at the kinetic or rolling coefficient.

Wednesday, December 7, 2011

Chap 7 Numbered Heads Review Instructions and Concepts

1. Form into the designated groups

2. Take out one full sheet of paper per group and list the name of the group at the top. Then list the names of the group members and place numbers next to each name (1, 2, 3…..If four members then write 4 also). It doesn’t matter who gets what number.

3. Hand the paper to the instructor. It will be used for assessment and graded.

4. Begin reviewing/ learning the listed concepts. Make up sample questions related to the concept. Try and figure out what question the teacher will ask. Time is limited; so don’t waste it!

5. Once you understand the concepts make sure each group members also understand by assessing them. Do not ask yes or no assessment questions.

Good Assessment. “Sam, could you show me how to do number three on the list?”

Poor Assessment. “Do you guys all know it?”

6. When the instructor calls a number randomly (ex. = 3) the three will go to a designated area alone and respond to a similar question. Make sure they have something to write with and a calculator. After they leave begin studying the next set of concepts for the next round.

7. After a short amount of time the person will then return to the group and their answer will be graded by the teacher and given to the entire group as a communal score.

8. The returning group member may be called again so they should receive extra instruction to help get caught up.

9. The scores are added at the end to determine winners. The top three groups receive extra points on the test.


Chap 7 Concepts

1. Calculate change in momentum for a 2 kg ball that hits a ball at 3m/s and bounces off the wall at the same speed.
2. Calculate impact force for a 5 kg object hitting at 2 m/s and coming to rest in 2 sec
3. Find momentum for a 10 kg object that goes 200m in 2 seconds
4. Find the mass of a ball given its speed and momentum.
5. Find the speed of a ball given its mass and momentum
6. Evaluate who has greater impulse, a light car or heavy one pushed by the same force over the same distance
7. Evaluate collision of Superman throwing an asteroid. What should happen?
8. Impact force for a falling object of known weight. What quantities are required?
9. Recoil for “almost” throwing a ball on roller skates
10. What makes an elastic collision?
11. Force, impulse, change in momentum, time of collision for a karate chop on a board
12. Time of impact for stiff legged jump versus bent legged jump
13. Definition of momentum
14. Calculate relative increase in momentum when you double speed or triple speed of a car
15. Why have padded dashes in cars?
16. Table tennis ball and launcher force, impulse, momentum change, and time of collision
17. Why speed of a cannon recoil is small in relation to cannonball
18. Why move hand backward when catching a ball?

Tuesday, December 6, 2011

Thursday, November 17, 2011

Instructions for Joining Quia

Here are the instructions for Joining Conceptual physics Per 2 2012 On Quia. Make sure you are in Per 2


Here are the instructions for joining Quia per 4 2012 conceptual Physics. Do not joi if you are not in per 4




Here are the instructions for Joining per 6 Quia Conceptual Physics. Do not join if you are not in per 6

Monday, October 31, 2011

Physics Link to Newton's Second Law Experiment

Directions: Follow the link to the second law computer experiment and then collect data on time and acceleration for 10 totally different cart weights and ten totally different hanging mass weights.

When you are done you should answer the following analysis questions:

1. What effect does adding mass to the cart have on acceleration?

2. What effect does lowering mass to the cart have on acceleration?

3. What effect does increasing mass on the hanging weight have on acceleration?

4. What causes the downward force on the hanging mass?

5. What is the formula that links force, mass and acceleration? and what is it called?

6. If a 1 kg falling mass pulls a 1 kg cart what is the acceleration?

7. How does this lab relate to the way your car would accelerate when pulling a trailer or loaded with passengers?

8. What would the physics justification be for limiting the number of passengers for new drivers?

Wednesday, October 19, 2011

Numbered heads Review Chap 5 Conceptual Physics

1. Form into the designated groups

2. Take out one full sheet of paper per group and list the name of the group at the top. Then list the names of the group members and place numbers next to each name (1, 2, 3…..If four members then write 4 also). It doesn’t matter who gets what number.

3. Hand the paper to the instructor. It will be used for assessment and graded.

4. Begin reviewing/ learning the listed concepts. Make up sample questions related to the concept. Try and figure out what question the teacher will ask. Time is limited; so don’t waste it!

5. Once you understand the concepts make sure each group members also understand by assessing them. Do not ask yes or no assessment questions.

Good Assessment. “Sam, could you show me how to do number three on the list?”

Poor Assessment. “Do you guys all know it?”

6. When the instructor calls a number randomly (ex. = 3) the three will go to a designated area alone and respond to a similar question. Make sure they have something to write with and a calculator. After they leave begin studying the next set of concepts for the next round.

7. After a short amount of time the person will then return to the group and their answer will be graded by the teacher and given to the entire group as a communal score.

8. The returning group member may be called again so they should receive extra instruction to help get caught up.

9. The scores are added at the end to determine winners. The top three groups receive extra points on the test.


Test Review List
1. What produces accelerations?
2. How are acceleration and Force related?
3. How are mass and acceleration related?
4. Acceleration at terminal velocity
5. Rate of falling in air with same parachute differing mass
6. Calculating force of gravity given mass
7. Force needed to maintain constant velocity with friction
8. Net force on an object sitting on a table or desk
9. Net force on a massive object in initial freefall before terminal velocity
10. Calculating net force given applied and frictional forces opposing each other
11. Calculating net acceleration in #10 given mass also
12. Definition of pressure
13. Units of pressure examples where high pressure is generated
14. Heavy ball vs light ball falling without air compare acceleration
15. Same situation as 14 but in air compare acceleration
16. Compare velocity and acceleration for falling objects in air over time
17. Normal support force for flat and inclined plane
18. If force triples what happens to acceleration on a cart
19. Calculate force given mass and acceleration
20. Calculate weight given mass and “g”
21. Calculating total acceleration given several forces in trhe same direction and total mass
22. Calculate force using sin, cos, tan

Monday, October 17, 2011

Friction Lab for Oct 17

Here is the link to the Friction Lab. Make sure to include a digital photograph and to have everyone answer the qurstions

Wednesday, October 5, 2011

Numbered Heads Review Chap 3 Conceptual Physics

1. Form into the designated groups

2. Take out one full sheet of paper per group and list the name of the group at the top. Then list the names of the group members and place numbers next to each name (1, 2, 3…..If four members then write 4 also). It doesn’t matter who gets what number.

3. Hand the paper to the instructor. It will be used for assessment and graded.

4. Begin reviewing/ learning the listed concepts. Make up sample questions related to the concept. Try and figure out what question the teacher will ask. Time is limited; so don’t waste it!

5. Once you understand the concepts make sure each group members also understand by assessing them. Do not ask yes or no assessment questions.

Good Assessment. “Sam, could you show me how to do number three on the list?”

Poor Assessment. “Do you guys all know it?”

6. When the instructor calls a number randomly (ex. = 3) the three will go to a designated area alone and respond to a similar question. Make sure they have something to write with and a calculator. After they leave begin studying the next set of concepts for the next round.

7. After a short amount of time the person will then return to the group and their answer will be graded by the teacher and given to the entire group as a communal score.

8. The returning group member may be called again so they should receive extra instruction to help get caught up.

9. The scores are added at the end to determine winners. The top three groups receive extra points on the test.

Concepts:

1. Similarity and difference of vector and scalar





2. How to draw or represent a vector system accurately (2 Components Plus resultant)






3. How to solve for the resultant of a vector system using the components






4. What it takes to be a projectile (Eliminate the non projectile)






5. Relationship between horizontal and vertical velocity of projectiles






6. Time to hit ground for thrown vs dropped objects



7. Angle needed to get the most range for a thrown projectile






8. Place where projectiles have minimum speed





9. Calculate range for a horizontally shot projectile given time and speed






10. Complimentary angles for projectiles







11. Solving for the resultant in a vector word problem






12. satellite motion including horizontal escape velocity





13. calculate time for a projectile to return given initial vertical velocity





14. Solve for resultant crossing a river where boat and current speed are known

Monday, October 3, 2011

Vernier Graph matching Lab Video

This week's lab will use the Vernier Motion detectors and is called Graph matching. Watch the short Graph matching video and write a summary of the material you will need and the procedure to open the lab and measure. Your procedure should have at least seven steps. It is a You Tube video that you will only be able to watch from home.

Thursday, September 22, 2011

Taking the plunge podcast

Please listen to the podcast about the defenestration of cats and be prepared to discuss the physics of the story.


Note, I encourage you to listen to the entire broadcast because it is so good, but I will quiz you only on the first section on cats , which lasts 9 minutes or so

Monday, September 19, 2011

Human with wings flies and survives

Her is a video about people free falling off cliffs with wing suits and surviving

Stomp rocket Height LAb

Here is the link to the stomp rocket height lab. You will need to record data on something during the lab so plan ahead. The lab is not printed on paper. Also, This will be submitted in Google Docs format so remember to take at least one digital picture of our setup

Friday, September 16, 2011

Thursday, September 15, 2011

Wednesday, September 7, 2011

Create Google Account and Student ID Letter

Please go to Google and click on "Create an account" Save your username and password and then fill out the student parent identification form

Wednesday, June 8, 2011

CP Physics Test Concepts for Light and Reflection

Light and Reflection Test Concepts

1. Table 1 applications pg 447 Ex. Which portion of the electromagnetic Spectrum is used in medical examination of bones?



2. Find Frequency given Wavelength using speed of Light, including use of prefixes like Mega and Giga, etc



3. Find Wavelength given Frequency using speed of light including prefixes



4. Commonality of EM spectrum in a vacuum regarding speed



5. Difference in colors of light regarding wavelength and frequency

Ex. What is different about red and blue light?



6. Distance v Light intensity relationship and applications
Ex How much light is available if we Triple the Distance from the source?



7. Finding angles of reflected rays from a plane mirror measured from horizontal and normal surfaces

8. Image and Object and Distance and Height for flat mirrors


9. Image and object Distance and radius of curvature for concave mirrors
Ex Know how to solve mirror and magnification equations

10. Focal length Radius of curvature relationship

11. Drawing ray diagrams of concave mirrors for cases 2-6 pg 460

12. Primary additive colors (Light)

13. Primary Subtractive Colors (Pigment)

14. Polarization of light

Tuesday, May 10, 2011

Tennis Ball Rocket Project Description

Tennis Ball Rocket Project

Project Description: Working in teams of two design and construct s a pressurized air based soda bottle rocket that is used to keep a tennis ball in the air for extended periods of time.


Point value: 100 pts Project category

Design constraints:

1. Only one pressurized 2 liter bottle allowed
2. No metal parts larger than 2” x 2” and or two grams total
3. No other sources of energy other than 80 psi air compressor
4. Rocket and or parachute must be free floating during the timing period
5. No kits
6. Rockets must have fins and nose cones


Grading

20 pts : Building day credits: everyone starts with 20pts total and deductions are received for lack of materials or failure to build during class time.

20 pts : two page write up of the physics principles involved in your design . Minimum of ten concepts documented

10 pts : completed launch of first prototype before deadline May 20

10 pts : completed launch of second prototype before deadline May 27 Must be significantly different than prototype 1

The following Updated Rubric is an attempt to better delineate the point values in each performance grade category. Overall, It makes it easier to be in the "A" range and raises the majority of student scores.

Updated Rocket Rubric Mr. Davison

A+ = 30 seconds and up 40 pts

A = 24-29 sec 38 pts

A- = 21-23 sec 36 pts

B+ = 18-20 sec 35 pts

B = 15-17 sec 34 pts

B- = 12-14 sec 32 pts

C+ = 11 31 pts

C = 10 30 pts

C- 8-9 28 pts

D+ = 7 27 pts

D= 6 26 pts

F = Less than 6 but launched 20 pts

F = No launch 0 pts

Wednesday, April 13, 2011

Four stroke Engine

Directions: Follow the link to the 4 stroke diagram. By the end of the lesson be able to name the parts of the four stroke cycle and be able to describe what is happening in each part.

Tuesday, March 29, 2011

Numbered Heads Review for Heat (CP Physics)

Numbered Heads Activity Heat Review

Directions:

1. Form into the designated groups

2. Take out one full sheet of paper per group and list the name of the group at the top. Then list the names of the group members and place numbers next to each name (1, 2, 3…..If four members then write 4 also). It doesn’t matter who gets what number.

3. Hand the paper to the instructor. It will be used for assessment and graded.

4. Begin reviewing/ learning the listed concepts. Make up sample questions related to the concept. Try and figure out what question the teacher will ask. Time is limited; so don’t waste it!

5. Once you understand the concepts make sure each group members also understand by assessing them. Do not ask yes or no assessment questions.

Good Assessment. “Sam, could you show me how to do number three on the list?”

Poor Assessment. “Do you guys all know it?”

6. When the instructor calls a number randomly (ex. = 3) the three will go to a designated area alone and respond to a similar question. Make sure they have something to write with and a calculator. After they leave begin studying the next set of concepts for the next round.

7. After a short amount of time the person will then return to the group and their answer will be graded by the teacher and given to the entire group as a communal score.

8. The returning group member may be called again so they should receive extra instruction to help get caught up.

9. The scores are added at the end to determine winners. The top three groups receive extra points on the test.

Concepts:

1. Molecular reason for temperature increase





2. Internal energy definition and understanding of what is happening






3. Kinetic energy of molecules temperature relationship






4. General temperature volume relationship for liquids and known exceptions (water 0 degress C to 2 degrees C)






5. Final Temperature calculation when mixing equal masses of same substance with known temperature of each






6. Familiarity with widely used Temperature scales temperature



7. Temperature increases in Celsius changed into Farenheit increases






8. Common point between C and F scales and MP BP of water for each





9. Heat definition






10. Three heat transfer methods







11. how house insulation works






12. PE KE U relationship





13. Find delta T if Q, M, C are known





14. Description of Temperature during a phase change vs during a phase






15. Interpret heating of water diagram all three phases including calculating M, C, Q or delta T





16. Calculate C to F C to K




17. Calorimetry calculation between hot metal and water Solve for C of metal



18 Calorimetry calculation between hot metal and water Solve for T final of metal and water

Wednesday, March 2, 2011

Time dilation calculator

Use the link to the special relativity calculator to record three different amounts of time that would pass on earth if you were traveling in space for three years at various speeds. 99 percent would be entered as .99

Tuesday, March 1, 2011

i movie tutorial

Here is a link to an i movie tutorial. If you already understand how to use movie making software you may skip the tutorial and move onto storyboarding (Written plan scene by scene) of your movie. The storyboard is due 3/8/2011 (next Tuesday)

Tuesday, February 22, 2011

scientific calculator online

Here is the link to a great Scientific calculator online for calculating Universal Gravitation

Thursday, February 17, 2011

Cheney Shotgun Experiment

Here is a link to a site that explorers the claims around Vice President Dick Cheney's Shotgun hunting accident. Find out the relationship between spray area and distance.

Monday, February 7, 2011

Torque and Rotational Inertia mini quiz

Here is the link to the torque and rotational inertia mini quiz