Monday, 2 June 2014

Web 2.0 Physics' Activity : DESIGNING AND TESTING PARACHUTES


In this post, I would like to share one of the physics' simple experiment that I've done for my Instructional Technology EDU455 computer laboratory assignment.

[ Guided example from http://www.sciencekids.co.nz/experiments/freefall.html ]

Firstly, this is the things that we need to have to conduct this experiment :-

THINGS NEEDED :-
   i) Scissors
  ii) Strings (or Thread)
  iii) A plastic bag (or any light material)

STEPS:-

1) Draw the edges so it looks like an octagon (an eight sided shape).

2) Cut and trim each sided by using a scissors.

  

3) Cut a small hole on each side of the edges.

4) Attach 8 pieces of string to each hold. Tie the pieces of the string to each edges.


5) Uphold all of the string together or you can tie it up on an object for greater effect :)

    


DO YOU KNOW WHAT IS ACTUALLY HAPPENING ? :)


                                        Test your parachute with a small action figure before trying it on a person

> When you release the parachute the weight pulls down on the strings and opens up a large surface area of material that uses air resistance to slow it down.
> The larger the surface area the more air resistance and the slower the parachute will drop.
>Cutting a small hole in the middle of the parachute will allow air to slowly pass through it rather than spilling out over one side, this should help the parachute fall straighter.