it must be attractive & simple & must not be of very low level
2006-11-16 01:46:54 · 5 answers · asked by deepika s 1 in Science & Mathematics ➔ Physics
I got this from my physics prof. Take a full glass of water, preferably a wine glass, and and some food colouring for the water. Take a clear piece of acetate and cut it in a circle for the top of the glass. The piece of acetate needs to be larger in circumference than the glass though. Place the acetate on top of the glass and turn the glass over. Explain why the water doesn't escape. The answer might surprise you. A hint is because of pressure but how much is there, where does it come from, and what is its dimension?
2006-11-16 02:10:56 · answer #1 · answered by instantanything 1 · 0⤊ 0⤋
A large pendulum that traces its path. A medium sized tin filled with coloured sand with a small hole punched in the bottom might work. This could be used to re-enact the experiment of Foucault that demonstrated that Earth revolves. You could hang it from a ceiling, the longer the pendulum length the better
2006-11-16 02:16:51 · answer #2 · answered by Barabas 5 · 0⤊ 0⤋
Hi. Have a fan blow over an airfoil to demonstrate that the pressure is lower on top. Tie this into flight. Then do what answerer #1 said!
2006-11-16 02:11:11 · answer #3 · answered by Cirric 7 · 0⤊ 0⤋
take a pitcher jar crammed with water positioned a small decrease out of something like a diver or submarine out of a reasonably stiff textile; which floats partly, like rubber or rexin. then tie the mouth of the jar very very tightly using a membrane, like a decrease balloon. press and pull the membrane and the decrease out will pass up and down
2016-10-22 04:46:49 · answer #4 · answered by oleyar 4 · 0⤊ 0⤋
Make a ship / aeroplance in paper ..only one piece of paper is enough .
2006-11-16 01:54:23 · answer #5 · answered by Anonymous · 0⤊ 0⤋