Tuesday, December 17, 2013
Homework for Physics
Hi folks,
The due date in the email is incorrect. The homework will be due on Jan. 6 when we get back from break.
Don't forget to get those 6 Newton's laws pictures to me too. How about the Newton's Laws of Christmas?! :)
The due date in the email is incorrect. The homework will be due on Jan. 6 when we get back from break.
Don't forget to get those 6 Newton's laws pictures to me too. How about the Newton's Laws of Christmas?! :)
Monday, December 16, 2013
12/16 Physics update and homework due 1/6
Hi folks,
Lots of work today. For the first part of class, we focused on the concepts of conservation of momentum and transfer of momentum. We also got very mathy as we took a look at problems dealing with conservation and transfer of momentum.
After that, we took a look at the concept of impulse. Impulse is what makes momentum happen. It is the hit/kick/punch/push/etc. that changes the momentum of something. To explore this concept, we did a very complicated and serious lab where we went outside and shot spitballs. This brought us to my favorite equation ft = change in momentum. This is my favorite equation because it is the reason seat belts and airbags keep you safe in a car. Basically, the slower one's momentum changes the less force there is to do damage.
Homework due 2/17 is:
Read Chapter 7 pgs. 86 to 99
Review questions #'s 1 - 9 Pg. 100
Plug and Chug questions #'s 1 - 4 Pg 101
Extra credit possibility. 2 pts for each think and solve on pg 102 (Sorry, not much fun I'm afraid.)
Lots of work today. For the first part of class, we focused on the concepts of conservation of momentum and transfer of momentum. We also got very mathy as we took a look at problems dealing with conservation and transfer of momentum.
After that, we took a look at the concept of impulse. Impulse is what makes momentum happen. It is the hit/kick/punch/push/etc. that changes the momentum of something. To explore this concept, we did a very complicated and serious lab where we went outside and shot spitballs. This brought us to my favorite equation ft = change in momentum. This is my favorite equation because it is the reason seat belts and airbags keep you safe in a car. Basically, the slower one's momentum changes the less force there is to do damage.
Homework due 2/17 is:
Read Chapter 7 pgs. 86 to 99
Review questions #'s 1 - 9 Pg. 100
Plug and Chug questions #'s 1 - 4 Pg 101
Extra credit possibility. 2 pts for each think and solve on pg 102 (Sorry, not much fun I'm afraid.)
Wednesday, December 11, 2013
Monday, December 9, 2013
12/9 Physics Class Update and Homework due 12/16
Hi folks,
Today we spent a bit more time with Newton's 3rd Law and also introduced the concept of momentum. We did a lab today looking at the effect mass and velocity have on momentum.
Homework due 12/16 is:
Read pages 74 - 82 in the text book.
Do Review Questions #'s 1 - 17
Also, take some time and take pictures or shoot videos of 2 examples of each one of Newton's Laws. So 6 pictures in all. I don't want you to necessarily set up the pictures, just find things that are examples of each one of the laws. Have fun with this! Feel free to email me the pictures or you can print them out and hand them in if you wish.
Today we spent a bit more time with Newton's 3rd Law and also introduced the concept of momentum. We did a lab today looking at the effect mass and velocity have on momentum.
Homework due 12/16 is:
Read pages 74 - 82 in the text book.
Do Review Questions #'s 1 - 17
Also, take some time and take pictures or shoot videos of 2 examples of each one of Newton's Laws. So 6 pictures in all. I don't want you to necessarily set up the pictures, just find things that are examples of each one of the laws. Have fun with this! Feel free to email me the pictures or you can print them out and hand them in if you wish.
Wednesday, December 4, 2013
Tuesday, December 3, 2013
12/2 Physics update and homework due 12/9
Hi folks,
A fun day today as we pushed Ben's car in the parking lot to show Newton's 2nd law by seeing the affect of our force on the mass of the car (thank you Ben). We also investigated Newton's 3rd law by looking at what happened when we added mass to Matchbox cars that were being repelled by magnets.
Homework this week is to:
Read the text book pgs 59 - 70.
At the end of the chapter, do the odd numbered review questions 1-18
At the end of the chapter do the Plug and Chug questions #'s 1-5
A fun day today as we pushed Ben's car in the parking lot to show Newton's 2nd law by seeing the affect of our force on the mass of the car (thank you Ben). We also investigated Newton's 3rd law by looking at what happened when we added mass to Matchbox cars that were being repelled by magnets.
Homework this week is to:
Read the text book pgs 59 - 70.
At the end of the chapter, do the odd numbered review questions 1-18
At the end of the chapter do the Plug and Chug questions #'s 1-5
Tuesday, November 19, 2013
11/18 physics update and homework due 12/2
Hi folks,
Today we went did another fairly complex lab where I had the students find acceleration, terminal velocity, gravitational force and friction force of a system using a ball and a ramp. The students had to really think about all the formulas we've been using, as well as think about last week's lab. It was quite a mind bender and they did a great job.
Homework for 12/2 is to use the Phet simulation Forces and Motion to answer the following questions.
Here's the link http://phet.colorado.edu/en/simulation/forces-and-motion
Click on the picture of the crate and drag to the right. Notice that as you do there are two force vectors. One is for the force the man is applying and the other is the friction force.
1. What happens to the friction force the second the crate begins to move? Why?
2. What is the minimal amount of force you need to apply to get the crate, filing cabinet, sleepy dog, refrigerator, and textbook to move? (You may want to use the "Applied Force" slider for this.) How does this relate to mass?
3. If you stop applying force to any of the objects what happens on wood? How about on ice? (Use the radio buttons in the upper right hand side to switch.) Describe what's happening there using Newton's First Law and then by using Newton's Second Law.
4. Click on the radio button for sum of forces. What is that green arrow showing?
Click on the "Friction" tab at the top of the screen and do the following questions.
5. What happens to the pushed objects as you increase and decrease the amount of friction?
6. What happens to the Fg and the Fn if you change the gravity?
7. What happens to the Fg and the Fn if you change the object mass?
Click on the Force Graphs tab at the top of the screen for the following questions. Click on the acceleration and velocity buttons in the bottom right to bring up those graphs.
8. Mess with the forces a bit and then draw all three of the graphs that was created by something you tried. Label the graph at any location where change took place. Notice the correlation between force, acceleration, and velocity.
9. Turn "ice" on and draw another three labeled graphs.
10. With "ice" and "bouncy walls" on draw another 3 labeled graphs.
Tuesday, November 12, 2013
11/11 physics update and homework due 11/18
Hi folks,
Today we took a look at some strategies to handle some more 2 dimensional motion problems. Also, we did a lab/practicum where we found out many different aspects of a lego catapult.
The homework for this week is to finish whatever data/calculations you weren't able to finish in class regarding the catapult lab. Here is the list of the data.
Top Horizontal Speed
Horizontal acceleration
Top Vertical Speed
Vertical Acceleration
Force
Mass
Distance
Acceleration of Throw
Time of Throw
Resultant Velocity
Also, complete the following .pdf. It will be using another one of those PHET simulations and it should be quite a bit of fun.
Today we took a look at some strategies to handle some more 2 dimensional motion problems. Also, we did a lab/practicum where we found out many different aspects of a lego catapult.
The homework for this week is to finish whatever data/calculations you weren't able to finish in class regarding the catapult lab. Here is the list of the data.
Top Horizontal Speed
Horizontal acceleration
Top Vertical Speed
Vertical Acceleration
Force
Mass
Distance
Acceleration of Throw
Time of Throw
Resultant Velocity
Also, complete the following .pdf. It will be using another one of those PHET simulations and it should be quite a bit of fun.
Monday, November 11, 2013
Recording of 11/11 Physics Class: Newton's Second Law
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Monday, November 4, 2013
11/4 Physics update and homework due 11/11
Hi folks,
Today we began our venture into Newton's Laws. To be honest, everything we've been working with so far has led up to this. Velocity, acceleration, vectors, linear motion has all been leading up to us gaining a strong understanding of Newton's three laws of motion. Today we began with Newton's first law, an object in motion stays in motion and an object at rest stays at rest unless a force acts against them.
Homework for this week is to:
Read pgs. 43-55
Review Questions pg. 56 #'s 1-10
Also, I want to get a bit deeper into these vector questions so please try to answer the following questions. Let me know if you need some help on these. I gave some clues in the first question.
1. a. Suppose that a boat was moving directly across a current with a velocity of 3 m/s, North and the motor boat was moving with a velocity of 4 m/s, East. What would the resultant velocity of the motor boat be. (i.e., the velocity relative to an observer on the shore)?
b. If the width of the river is 10 meters wide, then how much time does it take the boat to travel shore to shore? (For this, just forget about the current. How long would it take the boat to get from shore to shore (go 10 meters) moving at 4m/s?)
c. What distance downstream does the boat reach the opposite shore? (Use the time in part b for this. How far downstream would the boat travel in that amount of time?)
2. A motor boat traveling 4 m/s, East encounters a current traveling 7.0 m/s, North.
a. What is the resultant velocity of the motor boat?
b. If the width of the river is 80 meters wide, then how much time does it take the boat to travel shore to shore?
c. What distance downstream does the boat reach the opposite shore?
3. A motor boat traveling 6 m/s, East encounters a current traveling 3.8 m/s, South.
a. What is the resultant velocity of the motor boat?
b. If the width of the river is 120 meters wide, then how much time does it take the boat to travel shore to shore?
c. What distance downstream does the boat reach the opposite shore?
Video for 11/4 Physics Class: Newton's First Law
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Wednesday, October 30, 2013
Week 8 Physics Video
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Monday, October 28, 2013
10/28 physics update and homework due 11/4
Hi folks,
Today we got quite mathy as we dove a bit deeper into using our gravity formulas to solve some more complicated problems.
We also entered the realm 2 dimensional motion and I introduced vectors as we worked on understanding projectile motion.
Homework for this week is to do all 6 of the "Think and Solve" questions on page 42 of the Conceptual Physics book.
Today we got quite mathy as we dove a bit deeper into using our gravity formulas to solve some more complicated problems.
We also entered the realm 2 dimensional motion and I introduced vectors as we worked on understanding projectile motion.
Homework for this week is to do all 6 of the "Think and Solve" questions on page 42 of the Conceptual Physics book.
Tuesday, October 22, 2013
10/21 physics update and homework due 10/28
Hi folks,
Today we took another look at gravity and many of the very strange aspects of it. We also worked a bit with some formulas based on the gravitational constant.
Homework for this week is to:
Read Conceptual Physics pgs. 10 - 24
Do Review Questions on pg 25 and 26 #'s 4 - 14
Do the Plug and Chug problems on Pgs 26 and 27 #'s 1-8.
Today we took another look at gravity and many of the very strange aspects of it. We also worked a bit with some formulas based on the gravitational constant.
Homework for this week is to:
Read Conceptual Physics pgs. 10 - 24
Do Review Questions on pg 25 and 26 #'s 4 - 14
Do the Plug and Chug problems on Pgs 26 and 27 #'s 1-8.
Thursday, October 17, 2013
The link for this week's homework
Hi folks,
Here is the link to the webpage that will help you do the homework for this week. Have fun with this!
http://phet.colorado.edu/en/simulation/moving-man
Here is the link to the webpage that will help you do the homework for this week. Have fun with this!
http://phet.colorado.edu/en/simulation/moving-man
Monday, October 14, 2013
10/17 Physics update and homework due 10/24
Hi folks,
Today we took a look at velocity, distance and acceleration graphs in order to get a better handle on reading graphs and understanding what they are really telling us. We also began our lesson on gravity which we will continue next week.
To continue working with graphs, I want you all to spend some time with the following simulation. I've also included a .pdf that I would like you to fill out using the simulation.
Today we took a look at velocity, distance and acceleration graphs in order to get a better handle on reading graphs and understanding what they are really telling us. We also began our lesson on gravity which we will continue next week.
To continue working with graphs, I want you all to spend some time with the following simulation. I've also included a .pdf that I would like you to fill out using the simulation.
Thursday, October 10, 2013
Homework for Physics
I am really sorry about this but somehow between all the cutting and pasting I STILL messed up the assignment.
Here it is. This is the correct one...finally.
Read in the Conceptual Physics book pages, 10 - 16 and 21-23
Graph Data from Ramp Experiment
I'd like 3 graphs.
1. Feet as the horizontal axis and speed as the vertical
2. Feet as the horizontal axis and acceleration as the vertical
3. Seconds as the horizontal axis and distance as the vertical
Answer the following questions:
1. When did the ball have the highest speed?
2. What would the speed of the ball be if the ramp was long enough to allow the ball to travel for one more second.
3. What was the average speed of the ball for the entire ramp?
4. When was acceleration greatest or was it constant?
5. If it wasn't constant….why not?
6. What was the average acceleration of the ball for the entire ramp?
7. What would the acceleration be if the ramp was long enough to allow the ball to travel for one more second.
Never Stop Wondering
"Science Jim" Mueller
(919) 929-9791
A Fun Approach to Serious Physics!
Join my Facebook page!
Wednesday, October 9, 2013
Tuesday, October 8, 2013
10/7 Physics update and Homework due 10/14
Hi folks,
Today we took a look at motion, velocity and acceleration. We also did a lab where we measured the velocity and acceleration of a ball on a slope.
Homework for this week is to:
Read in the Conceptual Physics book pages, 10 - 16 and 21-23
Graph Data from Ramp Experiment
I'd like 3 graphs.
1. Feet as the horizontal axis and speed as the vertical
2. Feet as the horizontal axis and velocity as the vertical
3. Seconds as the horizontal axis and distance as the vertical
Answer the following questions:
1. When did the ball have the highest speed?
2. What would the speed of the ball be if the ramp was long enough to allow the ball to travel for one more second.
3. What was the average speed of the ball for the entire ramp?
4. When was acceleration greatest or was it constant?
5. If it wasn't constant….why not?
6. What was the average acceleration of the ball for the entire ramp?
7. What would the acceleration be if the ramp was long enough to allow the ball to travel for one more second.
Remember you have 3 assignments this week, reading, graphs and questions from the email. Let me know if you have any questions.
Never Stop Wondering
"Science Jim" Mueller
(919) 929-9791
A Fun Approach to Serious Physics!
Join my Facebook page!
Tuesday, October 1, 2013
Monday, September 30, 2013
9/30 Physics update and homework due 10/7
Hi folks,
Today we worked on some basic math skills that will be necessary for the rest of the year. Scientific notation, significant figures, metric prefixes, etc.
Homework for next week will be to do the enclosed .PDF. Answers are included but please do the problems first and only use the answers to self-check. The last few answers are in a strange order so don't panic if you get different answers from those.
Today we worked on some basic math skills that will be necessary for the rest of the year. Scientific notation, significant figures, metric prefixes, etc.
Homework for next week will be to do the enclosed .PDF. Answers are included but please do the problems first and only use the answers to self-check. The last few answers are in a strange order so don't panic if you get different answers from those.
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