Simple Harmonic Motion- intro

PHYSCLIPS Video Intro

Simple Harmonic Motion (modeling springs in Excel) response questions

Excel Spreadsheet Blank for Modeling the Position of an oscillating mass on a spring

DIRECTIONS for Creating your OWN model of simple harmonic motion.

Here are the follow up questions to the SHM lab.
These are to be answered solo- your computer generated models and graphs should be checked off by me and may be done with partners.

Uniform Circular Motion LAB

For our class, we have generated class data.  
Please use the PRINTED OUT graphs passed out during class time for your write up.
You should analyze BOTH graphs even though your group contributed data for only one of the two. 

ORBITAL MOTION LAB: Class data set version

An equation that describes uniform circular motion does so in terms of centripetal force,

a_c=v²/r

where v is orbital speed and r is the radius of orbit.  This equation can also be expressed in terms of the circumference (2pr) of the orbital period (T).

a_c=(4pi²r)/T²

Using the class set of data below, can you verify these two important mathematical relationships that characterize centripetal acceleration?

QUESTION #1: Can you show that a_c is directly proportional to r?  

Is that proportion similar to this equation? a_c=(4pi²r)/T²

QUESTION #2: Can you show that a_c is inversely proportional to T²?

Write a caption under each graph. 

Write a conclusion answering the two questions above.

Include a BRIEF description of your methods AND an analysis of sources of error in your conclusion.

Centripetal Motion & the Death Spiral

Meagan Duhamel, Eric Radford
2nd in pairs figure skating team event
photo snagged from CBC Canada

A pairs figure skating move- the Death Spiral.

We'll use this as our warm up question on centripetal motion on 2/21.

http://www.youtube.com/watch?v=H3T5A4WsWCQ

MANY OTHER CENTRIPETAL MOTION PROBLEMS & an explanation of their  solutions can be found HERE.

Circular Motion Lab: DATA collection

Please enter your group's data 
onto this spreadsheet.
Then enter your data into Desmos & find the best fit for your data.

HW and definitions Circular Motion

Earth and Moon together as seen from space.
Circular motions: Earth & Moon around the sun.
Moon around the Earth. Earth around the sun.

Going around in circles! From HyperPhysics.com,
here's a few diagrams with the equations we discussed in class.

Wikipedia animation of a radian
Here's a link to the Coriolis Demo

HW: page 247, #1, #3, #4; page 248, #1, #3, #4 AND page 250 #1 and #3.