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1. Suction in a
Vacuum cleaner
Physics for Kids
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2. Suction in a Vacuum clener
A vacuum cleaner works similarly to taking a sip
of juice from a straw. As you suck the air out,
juice from the glass takes its place. This is
because you are creating a space of empty matter
with your mouth. Since matter has a tendency to
occupy space, the juice will flow upward and into
your mouth so long as you continue to suck.
Air
Liquid
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3. Suction in a Vacuum clener
Now apply this theory to a vacuum cleaner. The
boxy part of the vacuum cleaner has a motor
inside it that does the same job as your mouth.
The rotating fan of the motor creates a vacuum
and begins to suck in air through the suction
nozzle at the end of a pipe.
Motor
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4. Suction in a Vacuum clener
Any dust that comes within range of the suction of
the nozzle gets pulled into the pipe and is collected
in a bag. There is a filter inside that prevents the
dirt that escapes from the bag from entering the
motor. The two main types of vacuum cleaners
are ones with a canister with a pipe attached to it
or an upright one whose suction nozzle is at the
bottom of the canister itself.
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5. Suction in a Vacuum clener
PROJECT
The next time you come across a vacuum cleaner,
ask an adult to help you turn it on. Find different
materials such as paper clips, a couple of coins, and
a small pile of dirt. Test how close you have to go to
the material in order for it to reach the grasp of the
suction power.
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