Happy Wednesday--Today we took a quiz over freefall and using acceleration due to gravity for calculations. We also worked on our Rube Projects in the computer lab.
Reminder: Rube is DUE 4-16-12
Feel free to check out all the notes on this blog over break to refresh your brain :) See you after Spring Break! Enjoy and relax :)
Wednesday, March 28, 2012
Tuesday, March 27, 2012
Freefall Tuesday
Happy Tuesday to you all :) I was home yesterday but am glad to be back today!!
Yesterday you did # 35, 36, 37, 48 & 49
Yesterday you did # 35, 36, 37, 48 & 49
Freefall is when an object is dropped. The only influence on the object is GRAVITY!!! AND when you drop the object, it speeds up as it falls so there is acceleration on the object...... acceleration due to gravity (g). g is a constant-- 9.8 m/s2. When the object is going in the down direction, g is negative.
Our old formula
**Solving for x (displacement) with NO final velocity x=vit + 1/2 at2 (squared)
Still holds true for free fall….except that x becomes y (since our displacement is NOT horizontal but vertical instead) and the “a” becomes g (because g is the constant for acceleration due to gravity). DO NOT rewrite the equation, instead just remember y instead of x and g instead of a J
y =vit + 1/2at2 (squared) and g=9.81 (and usually negative)
HOMEWORK: Practice f page 64
NOTES LINKED HERE
Friday, March 23, 2012
3/23/12
Today we had a 3 question quiz (12 points). Be sure to be checking my blog. If you visit here, leave a message so I know you were here :)
You were given time in class today and many of you did not use the time wisely.
DUE MONDAY: (from college prep packet)
22
27
30
31
32
33
34
You were given time in class today and many of you did not use the time wisely.
DUE MONDAY: (from college prep packet)
22
27
30
31
32
33
34
Thursday, March 22, 2012
3/22/12
Thursday:
Today time was given in the lab to work on Rube projects.
TOMORROW: Quiz over Kinematics--REVIEW Chapter 2!!!!
Today time was given in the lab to work on Rube projects.
TOMORROW: Quiz over Kinematics--REVIEW Chapter 2!!!!
Wednesday, March 21, 2012
3/21/12
Wednesday! :)
Today:
We completed page 58 problems 1-6, and page 59 #5. ALL DUE TOMORROW.
Tomorrow:
Media Center lab for time to work on the Rube Project. DUE 4-16-12. More computer lab time on 3/28/12 (Wednesday)
Friday:
QUIZ over kinematics--solving for Velocity, Acceleration, Displacement, etc.
Today:
We completed page 58 problems 1-6, and page 59 #5. ALL DUE TOMORROW.
Tomorrow:
Media Center lab for time to work on the Rube Project. DUE 4-16-12. More computer lab time on 3/28/12 (Wednesday)
Friday:
QUIZ over kinematics--solving for Velocity, Acceleration, Displacement, etc.
- Things to remember:
- starting from REST gives you an initial velocity of 0.
- list ALL givens (example: Vi=56 m/s, x=3 m, t=?) PROVIDE labels for each given and answer
- Write your "final answers" OUT before putting into significant digits
- put your FINAL answer in significant digits but DO NOT ROUND in the middle of the problem. STORE your "answers" along the way to use for the final answer.
Tuesday, March 20, 2012
3/20/12
Today we did LOTS of kinematics practice using the College Prep Packet--Numbers 47, 16, 18 and 19.
You can see my work for #47 here.
Remember for #16 you are just calculating speed and velocity but you need to convert the km to m FIRST and min to seconds FIRST.
Remember for #18, you are calculating displacement over time for EACH chunk of the graph (or....slope :) rise over run) and REMEMBER that displacement has DIRECTION so one of those parts has a negative displacement.
Remember #19, you are calculating DISTANCE over time for each chunk (speed) AND displacement over time for each chunk (velocity)--REMEMBER displacement has direction.......
You can see my work for #47 here.
Remember for #16 you are just calculating speed and velocity but you need to convert the km to m FIRST and min to seconds FIRST.
Remember for #18, you are calculating displacement over time for EACH chunk of the graph (or....slope :) rise over run) and REMEMBER that displacement has DIRECTION so one of those parts has a negative displacement.
Remember #19, you are calculating DISTANCE over time for each chunk (speed) AND displacement over time for each chunk (velocity)--REMEMBER displacement has direction.......
Monday, March 19, 2012
3/19/12 Conferences Tonight!
Happy Monday! Reminder: Parent/Teacher Conferences are tonight and we are offering extra credit if YOU attend with your parent/guardian :) Mr.Groh will be in the cafeteria and I will be in C111. You can see either of us!
Today we reviewed the FIVE Kinematics formulas
Today we also discussed how to put the solving for displacement Kinematics formula into the quadratic formula to solve for time.
Today we reviewed the FIVE Kinematics formulas
Today we also discussed how to put the solving for displacement Kinematics formula into the quadratic formula to solve for time.
Thursday, March 15, 2012
3/15/12
Rube Work Day in the Computer Lab!
DUE DATE: 4/16/12
Remember to show the energy transfers AND explain each how the energy transfers....such as if you are using the clapper for sound to electical--explain how the clapper works!! Research it! :) Use resources such as How Stuff Works, Youtube and Teacher Tube.
DUE DATE: 4/16/12
Remember to show the energy transfers AND explain each how the energy transfers....such as if you are using the clapper for sound to electical--explain how the clapper works!! Research it! :) Use resources such as How Stuff Works, Youtube and Teacher Tube.
Wednesday, March 14, 2012
3/14/12
Little energy form funny for you :)
Kinematics!
WORK DONE TODAY:
College Prep Worksheet Page 55 10, 11, 12
Book Practice D page 55 1-4
Kinematics!
WORK DONE TODAY:
College Prep Worksheet Page 55 10, 11, 12
Book Practice D page 55 1-4
VERY IMPORTANT:
DO NOT ROUND your data in the middle--when you solve for something (such as x) that will be used in another formula (like then solving for Final Velocity)--STORE the MIDDLE DATA NUMBER IN YOUR CALCULATOR!!!
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