Lab: Finding g with Centripetal Force

Today you worked on the lab Finding g With Centripetal Force.

Homework is to finish the lab.

Centripetal Acceleration and Force

Today we introduced centripetal acceleration and centripetal force. We'll be doing a lot more with these next week.

Notes: Centripetal Acceleration and Force

Homework is Chapter 7 (p. 228) #17, 18, 22

You were also given an FRQ to work on which you will be correcting yourself on Monday/Tuesday (email miss.volkening@gmail.com for a copy). You'll be actually doing the lab described in that FRQ, so try to think of a procedure for getting the type of data they used. More details on the lab are here: Finding g With Centripetal Force.

Below is the work for an example problem in the notes.

Relationships Between Linear and Angular Quantities

Today we talked about how to go between linear and angular quantities.

Relationships Between Linear and Angular Quantities

We completed Rotational Motion TIPERs #1 in class (email miss.volkening@gmail.com for a copy). Or, if you didn't finish, it is homework and due tomorrow.

Homework is Ch. 7 (p. 227) #8 & 11. For #8 you will have to do a free fall kinematics problem just to find the launch velocity of the water droplets, which will give you the linear velocity on the outside of the wheel.

Energy Test and Angular Quantities

We spent the first 65 minutes taking our energy test, then we introduced circular motion:

Angular Quantities

There was also a bit on the board to further explain radians; I'll try to get a picture of that up.

Homework is Chapter 7 (p. 227) #1, 2, 4

Energy Practice Test

Today you were given a practice test for this unit. Your test is first thing next week.

Energy Practice Test

Here are the solutions:

Power

Our last topic for the unit is power.

Notes: Power!

Here is the solution to the last example problem:

Homework p. 162 #50 (use Watts instead of horsepower) & 56

Work Due to a Variable Force

Today we found the work due to a variable force with graphs and used that to find velocity at a given position.

Notes: Work Due to a Variable Force (remember to download and run as a slideshow)

We practiced in class with Energy TIPERs #7 (email miss.volkening@gmail.com for a copy).

We also peer-graded/edited Energy TIPERs #6. We did not turn those in for a grade.

Homework tonight is Chapter 5 (p. 163) #59, 60, 61