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For Teachers

- waterrocketluketan kinematics special lesson.docx
- waterrocketluketan Kinematics special lesson.pdf
- waterrocketluketan.mp4

Software Requirements

SoftwareRequirements


Android iOS Windows MacOS
with best with no no need Java
need Java
support full-screen? no no Yes Yes
cannot work on no mobile browser  understand Java....
no mobile browser  understand Java.... install Tracker from http://physlets.org/tracker/
install Tracker from http://physlets.org/tracker/

 

Credits

Author: luke tan video, model lookang
Contact: This email address is being protected from spambots. You need JavaScript enabled to view it.

end faq

Video

 Newton's Third Law - Water Rocket Experiment by ETDtogo 

Model

fy = -9.81+if (t<0.5,T,0)

where T is 23.4 N.
what the model suggests is the thrust is 23.4 acting for 0.5 seconds at beginning of the video.

assumption

mass is constant
thrust is constant at 23.4N

my observation

the flight path is roughly close the real motion.

conclusion

of course, the model is flawed, but that is the nature of science, a better model gets made by building on other people's idea.

challenge

can you build a better model?

Reference:

http://weelookang.blogspot.sg/2017/01/nature-of-science-tracker-water-rocket.html

Kinematics missing resources in OPAL now completed!

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  • Secondary
  • Dynamics
  • Junior College
  • Tracker
  • Windows/MacOSX/Linux including Laptops/Desktops
  • Science
  • Simulations