momentum - colissions - SPH4U1

click here to play with the applet.

RZ

Applications of Waves and Sound - SPH3U/4C

Here are some resources for today's concepts.

Speed of wave vs the wave emitter:
http://goo.gl/4wNpPR

Doppler effect:
https://www.youtube.com/watch?v=pJKlTM2bINY

https://www.youtube.com/watch?v=Tn35SB1_NYI

Frequency generator:
http://onlinetonegenerator.com/

Mach # and speed of sound (sonic boom):
http://www.youtube.com/watch?v=GstwLblPpIM

https://www.youtube.com/watch?v=VBlIvghQTlI



Figure 1: subsonic aircraft


Figure 2: supersonic aircraft

Nozzle:

subsonic
https://www.youtube.com/watch?v=gzeH06MC9kw (3:20 WOW!!!! over 6000 views??)

supersonic
https://www.youtube.com/watch?v=DKtVpvzUF1Y (2min in)



Wave superposition:
https://docs.google.com/document/d/1ljKKcRn_okezEgKasSTEdPNqiON-EJSLqWTjcw4MjxY/edit?usp=sharing

 Understading beats:
http://goo.gl/0rIxEz


Resonance and the Tacoma narrows Bridge
http://www.youtube.com/watch?v=lXyG68_caV4

Rocket project - Cm - Cp and parachute size - SPH4U

Here are the links for the above tasks:

https://www.grc.nasa.gov/WWW/K-12/rocket/rktcg.html  (center of mass)


https://www.grc.nasa.gov/WWW/K-12/rocket/rktcg.html  (center of pressure)

https://drive.google.com/file/d/0B85vUPE4Cnp2b0pmMGZVUVlXSWM/view  (parachute design)

https://www.321rockets.com/ (detailed technical specs for motors)

Have fun!

RZ

Mechanical energy test - SPH3U/SPH4C

Hello all,

Continue to prepare for tomorrow's evaluation. Remember that there will be no numerical questions involving elastic potential energy but there may be conceptual or multiple choice questions.

Read this article to prepare for the test.

https://www.cbc.ca/news/canada/toronto/ontario-transportation-minister-highway-speed-limit-review-death-1.5118563


More practice:

https://drive.google.com/open?id=104nczlFutKvX903awQVm5uRmtOXzJ5Uu

https://drive.google.com/open?id=10A5UqpbNzywONCgmMvWrDCNm_la0_EP9

https://drive.google.com/open?id=10D0rc7hzwWqOWhvJPxHp1y_k6JOJ4sr5



RZ

Rocket Design Criteria - SPH4U

Here we go!!!!!!

T-minus....

Click HERE for full design criteria for this years rocket design projects. You can now start preliminary sketches and ideas for your team's design. We will hit the ground running on Monday! be on task! divide parallel tasks so that you can make as much progress as possible.

HERE are the motor performance specifications


RZ

conservation of mechanical energy practice - SPH3U/SPH4C

Try some...

Text book section 5.3 Practice and questions on page 241.

textbook answers

https://drive.google.com/open?id=0B85vUPE4Cnp2MDczU19UYktDQmc


Try some more....

https://physics.info/energy-conservation/problems.shtml

https://www.khanacademy.org/science/ap-physics-1/ap-work-and-energy/conservation-of-energy-ap/e/conservation-of-energy-law-ap-physics-1

Play with this!!! it will help a lot!!

https://phet.colorado.edu/sims/html/masses-and-springs/latest/masses-and-springs_en.html


RZ

Ontario Electrical Grid - ALL

http://live.gridwatch.ca/home-page.html

ENJOY!!!