Fill a balloon with air, and release it with nipple open.
The balloon will fly like a rocket around the room for a
short time. The air exitin the balloon is pushing it
forward, which proves that escaping air carries
momentum and therefrore (inertial) mass.
Note for people who suggest weighting balloons,
of which there were plenty here recently:
Try to conduct the experiment which you describe.
No, not with air, try it with with water. Imagine that you are
a fish and try to prove that water has mass. Fill a balloon
with water and weight it *in water*.
2007-04-30 07:47:48
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answer #1
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answered by Alexander 6
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Go to a service station. Hold the air hose there in your hand and release some air from it. Feel the air reaction force as it pushes back in the opposite direction against the hose . If air didn't have mass, this would not happen. One of Newton's Laws: For every action , there is a reaction - and Force = mass x acceleration;
no mass, no force!
2007-04-30 07:57:01
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answer #2
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answered by Anonymous
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the easiest way to prove that air has mass is to prove that air has pressure. Then you can experiment with different air pressures and multiple experiments do such. You can try this for starters: using a mason jar, put an inflated (opened up) plastic baggie around the edge. Using glue to get a strong bond and create a good seal. Then try to push the baggie into the jar. You shouldn't be able to, because it's hard for us humans to compress air, therefore air has mass.
2007-04-30 07:48:08
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answer #3
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answered by jcann17 5
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There are many ways, but one novel and direct way might be to obtain/construct some approximately spherical vessel, something like 2 large steel salad bowls siliconed together, and with some sort of air valve. Weigh the vessel with the valve opened, then vacuum out the air, seal the valve, and weigh it again. At air's weight of 1.2 kg/cubic meter, the difference in weight should be easily measurable on any decent lab scale.
2007-04-30 08:00:36
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answer #4
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answered by Gary H 6
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Um, blow on something. Without mass, air flow couldn't be felt or since doing work. If you can feel air pushing against you, or see it knock something over, it must have mass. To measure the mass you could use a know air velocity pushing against a small sail, measuring the force on a spring.
2007-04-30 07:47:33
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answer #5
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answered by harvityharvharvharv 3
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fit a balloon onto the neck of a 2-litre bottle (empty, of course) and squeeze the bottle.
The mass is transfered to the balloon, thereby proving that air exhibits mass properties.
2007-04-30 07:52:38
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answer #6
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answered by PopsGifts 3
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Well our science teacher here at school recently died :( and uh, I think we did something with this. If you have a balloon weigh that. Record the weight [in grams]. Then blow it up, and weigh it again. I'm not too sure how much each little...thing [lol] of air weighs or anything or even how to find it, but...thats what i got. :]
2007-04-30 07:49:12
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answer #7
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answered by Jackie 2
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Weigh an empty balloon. Blow up the Balloon, then weigh again. Air inside the balloon must be at the same temperature as air outside the balloon. It will weigh more. Air has weight, therefore it has mass.
2007-04-30 07:45:51
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answer #8
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answered by squeezie_1999 7
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The height of the atmosphere (air) acting on the area of the surface of the earth is causing the atmospheric pressure. Pressure is mass or weight divided by area acted upon.
2007-04-30 08:37:51
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answer #9
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answered by Norrie 7
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To prove that it has weight, float a balloon in the air. To prove that it has inertia, run around with a big parachute behind you.
2007-04-30 07:49:17
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answer #10
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answered by Anonymous
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