Physics Mini-experiment (Expansion of air + vacuum suction)

Physics Mini-experiment showing the expansion of air and vacuum suction due to change in atmospheric pressure.
Done by: Justin Ooi Zhi-Wei (12) of 3 Science 1
Anglo-Chinese School (Barker Road)

Category:

Education

Tags:

• Physics
• Mini
• experiment

[tulp35000]

i think that when u do it air molecules are too far from each other so they return to their original position, the same thing happens when u do it in reverse, have air in the squirt and push it, it becomes increasingly harder towards the bottom.

[tulp35000]

What about a squirt without needle, you push it all the way then put your finger on the hole where needle would be and then pull the back, then it retracts back, why?

[socratus1]

What is a Vacuum ?

#

The Vacuum is an Empty space between Galaxies

Is this space really Empty?

No! Physicists say that : 90% or more of the matter in the Universe / Vacuum are unseen ‘dark matter

and dark energy ’ . And nobody knows what they are.

Question:

How can the 90% or more of the Hidden ( dark ) matter / energy in the Vacuum create the few % of the Visible matter ?

==

[fetishferpink]

L.O.L justin

[00ctrl]

this rocks

but i think the experiment is to simple for ur standard/brillance

[fidelds]

this was crap

[zzzCookie]

I found it! I lost the game. Guess who am I!