Quiz on Rockets using Sus-it-out method.
Bike and Bee problem.
There are many ways to solve problems, some easy, some hard. The trick is knowing which method to use.
Reviewed Sus-it-Out method.
Derived the two extra equations for the Equation Method.
Gave the students a packet of problems.
Required them to do problems 10,11,12,14,16,18,19,20
Do others for practice or to prepare for the test.
We will have a test either the end of next week or shortly thereafter.
Friday, February 25, 2011
Wednesday, February 23, 2011
Wednesday, Feb 23, 2100
Quick review of Introduction to linear motion
displacement vs distance
instantaneous velocity
Picket Fence value for g = 9.799 m/s/s
How to calculate "How Fast"
Described the "Sus-it-Out" method to determine "How Far"
a = (vf-vi)/t or vf = vi + a * t (what you end up with is what you start with plus the rate times the time)
vavg = (vi + vf)/2
d = vavg * t (d = displacement)
Did several examples for dropping an object, throwing an object up, throwing an object down.
Handed out RA 2.3 for homework tomorrow
Handed out CD 2.1 If you do the concept development sheets and hand them in, you can get more than one change to get 100%
displacement vs distance
instantaneous velocity
Picket Fence value for g = 9.799 m/s/s
How to calculate "How Fast"
Described the "Sus-it-Out" method to determine "How Far"
a = (vf-vi)/t or vf = vi + a * t (what you end up with is what you start with plus the rate times the time)
vavg = (vi + vf)/2
d = vavg * t (d = displacement)
Did several examples for dropping an object, throwing an object up, throwing an object down.
Handed out RA 2.3 for homework tomorrow
Handed out CD 2.1 If you do the concept development sheets and hand them in, you can get more than one change to get 100%
Tuesday, Feb 22, 2011
Went over homework on math skills.
Introductory lecture on linear motion
Intro
Definition:
distance
speed
average speed
instantaneous speed
displacement
rate
average velocity
instantaneous velocity
Showed example of difference between a rate (hourly wage) and the rate of a rate (the rate at which your hourly wage increases). Used this to distinguish between velocity and acceleration.
Did examples to calculate acceleration.
Example of riding in my car to show that you can "feel" acceleration (because of inertia) even though you cannot feel constant velocity.
Used g = 10 m/s/s near the surface of the Earth to calculate how fast a dropped object is falling after a time t.
Showed picket fence lab and measured the acceleration of gravity in the classroom as g = 9.799 m/s/s
Introductory lecture on linear motion
Intro
Definition:
distance
speed
average speed
instantaneous speed
displacement
rate
average velocity
instantaneous velocity
Showed example of difference between a rate (hourly wage) and the rate of a rate (the rate at which your hourly wage increases). Used this to distinguish between velocity and acceleration.
Did examples to calculate acceleration.
Example of riding in my car to show that you can "feel" acceleration (because of inertia) even though you cannot feel constant velocity.
Used g = 10 m/s/s near the surface of the Earth to calculate how fast a dropped object is falling after a time t.
Showed picket fence lab and measured the acceleration of gravity in the classroom as g = 9.799 m/s/s
Friday, Feb 18, 2011
I was sick so the sub handed out RA 2.1, RA 2.2, and RA 2.3 for class to work on. Unfortunately, he only handed out the front side of RA 2.3.
Thursday, Feb 17, 2011
Finished going over math skills used in physics:
Using a calculator, unit conversions
Handed out worksheet for homework.
Using a calculator, unit conversions
Handed out worksheet for homework.
Wednesday, Feb 16, 2011
Students used max min slope to find average slope and uncertainty.
Students paired up with laptops. Showed how to use Excel and Linest function to find uncertainty in slope.
Students paired up with laptops. Showed how to use Excel and Linest function to find uncertainty in slope.
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