­This is the same basic mechanism at work in a vacuum cleaner, though the execution is a bit more complicated. we'll look inside a vacuum cleaner to find out how it puts suction to work when cleaning up the dust and debris in your house. As we'll see, the standard vacuum cleaner design is exceedingly simple, but it relies on a host of physical principles to clean effectively.It may look like a complicated machine, but the conventional vacuum cleaner is actually made up of only six essential components:An intake port, which may include a variety of cleaning accessoriesAn exhaust portAn electric motorA fanA porous bagA housing that contains all the other componentsWhen you plug the vacuum cleaner in and turn it on, this is what happens:The electric current operates the motor. As the fan blades turn, they force air forward, toward the exhaust port(check out How Airplanes Work to find out what causes this).As long as the fan is running and the passageway through the vacuum cleaner remains open, there is a constant stream of air moving through the intake port and out the exhaust port.

By Other words,or an “Easier” Explanation:A vacuum cleaner’s working is similar to what happens when you take 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.Now apply this theory to a vacuum cleaner. 1 vacuum cleaner martThe boxy part of the V.C has a motor inside it that does the same job as your mouth. hoover vacuum cleaner uprightThe rotating fan of the motor creates a vacuum and begins to suck in air through the suction nozzle at the end of a pipe.wet dry vacuum cleaners australia

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.Vacuum means “emptiness” in Latin. It is defined as a space from which all air and other gases have been removed. This is an ideal condition. The perfect vacuum does not exist so far as we know. Even in the depths of outer space there is roughly one particle (atom or molecule) per cubic centimeter of space. Vacuum can be used in many different ways. It can be used as a force to hold things in place – suction cups. It can be used to move things, as vacuum cleaners, drinking straws, and siphons do. At one time, part of the train system of England was run using vacuum technology. The term “vacuum” is also used to describe pressures that are subatmospheric.

These subatmospheric pressures range over 19 orders of magnitude. There is air pressure, or atmospheric pressure, all around and within us. We use a barometer to measure this pressure. Torricelli built the first mercury barometer in 1644. He chose the pressure exerted by one millimeter of mercury at 0oC in the tube of the barometer to be his unit of measure. For many years millimeters of mercury (mmHg) have been used as a standard unit of pressure. One millimeter of mercury is known as one Torr in honor of Torricelli. The international standard (SI) unit of measure is the Pascal (PA). It is one newton of force per square meter and is named after a French physicist. Other seldom used forms are the millibar and the atmosphere (ATM). In the atmosphere, surfaces are constantly being bombarded by molecules. Some of these molecules bounce off the surfaces and others attach themselves, sometimes reacting chemically to the surface. Within a vacuum, a clean surface gets considerably less bombardment, leaving the surface clean or uncontaminated for a much longer period of time.

Removing the air from a vacuum chamber creates a space which contains few molecules. This allows a much higher evaporation rate for material with less need to elevate the temperature. This is because you have removed the pressure of the gas against the surface of the evaporant and much less energy (heat) is needed for a molecule of the evaporant to break free from the surface. Due to the smaller numbers of molecules in a vacuum, you also reduce the conductivity, or transference, of heat. This is the effect we create within a thermos bottle. Air molecules bumping into the bottle will carry away a little heat with them as they leave. The fewer molecules, the less heat transfer. Another type of heat transfer, radiation, is uneffected by lower pressures. Radiant heat can be blocked or reflected, however. That is why the thermos bottle is shiny, to reflect radiant heat back to the contents of the bottle. This analogy might be helpful when troubleshooting burned parts in your chamber.

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Embed Code « Previous Article Next Article »How Does A Vacuum Cleaner Work? A vacuum cleaner’s working is similar to what happens when you take a sip of juice from a straw. The boxy part of the has a motor inside it that does the same job as your mouth. 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.Looking for more Physics articles and videos? Go to: Physics for Kids.Show All ItemsRequirementsPlastic bottledeodorant bottlefirst aid cloth DC motorand glue gun and a small bending pipe Step 1: Cutting the plastic bottle and deodrant bottleShow All ItemsTake the empty plastic bottle and cut into half and next , Take a deo bottle and cut and you will get a flat sheet as shown in the figure .