Trick of bending the water
Purpose
To demonstrate how oppositely
charged electrons can be used to bend water.
Additional
information
Static electricity is the
accumulation of excess electric charge where there exists poor electrical
conductivity. Every day we interact and observe the effects of static
electricity from multiple sources, none more so than the static created by our
own bodies. When we brush our hair, rub our feet on the ground, or pull a wool
sweater over our heads, excess electrons are created and cling to our body
until they can be discharged. This phenomena occurs because all physical
objects are made up of charges, which in turn are made from atoms consisting of
protons (positive charges), electrons (negative charges), and neutrons (neutral).
When a sustained separation of positive and negative charges occurs, static
electricity is formed.
Required
materials
·
Water
faucet with running water
·
Latex
balloon
·
Nylon comb
Estimated
Experiment Time
Only a few minutes
Step-By-Step
Procedure
· 1. Inflate
the nylon balloon.
· 2. Turn
on the faucet so that the water is coming out at a slow and steady stream. It's
usually best to use a bathroom sink faucet as the nozzle can produce smooth
jets of water at low output.
· 3. Take
the inflated balloon and rub it against the nylon comb to create a static
charge on the comb.
· 4. Slowly
and carefully place the teeth of your charged comb next to the stream of water.
As your comb gets closer, the water stream reacts by bending towards your comb!
Note
If you don't have a latex balloon,
you can try charging the comb through other methods, such as brushing your hair
or rubbing it against a wooly sweater. The key is to give the comb a charge of
static electricity so it can cause the water to react.
How does humidity affect the outcome
of the experiment? Do you think the same result would occur in an atmosphere of
high humidity as it would in an atmosphere of low humidity? Do you think the
material used would make a difference in the strength of the negative charge on
the comb? What if the comb or the faucet nozzle were larger in size, would the
experiment result in the same outcome?
Result
The stream of water running from the
faucet actually carries a positive electrical charge. When the comb is rubbed
against the balloon (charged) electrons form to create a negative charge on the
comb. Much like magnets, the negative charge on the comb is attracted to the
positive charge of the running water. When the charge is strong enough, it will
pull the running water towards the comb, allowing you to bend water!
It's important to note that this experiment is best conducted in low humidity
environments. When humidity is high, the atmosphere provides a conducting path
for the rapid neutralization of static charge, causing the effectiveness to be greatly reduced.
How was it?? I hope u all enjoyed it..... So keep learning.
-Soham Hazra
Trick of bending the water
It's important to note that this experiment is best conducted in low humidity environments. When humidity is high, the atmosphere provides a conducting path for the rapid neutralization of static charge, causing the effectiveness to be greatly reduced.
That sure seems interesting. But what is a latex balloon? - Ankita.
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