a small presentation about static electricity, it's uses and dangers. This presentation will be a good one if u present it properly.

1. Static Electricity
Grade 9 Nibras Al Haq

2. Content
 Introduction
 Uses of Static Electricity
 Dangers of Static Electricity
 How can we prevent the danger?
 Checklist
 Resource
Nibras Al Haq

3. Introduction
Static electricity is an excess of electric charge trapped on the surface
of an object. The charge remains until it is allowed to escape to an
object with a weaker or opposite electrical charge, such as the ground,
by means of an electric current or electrical discharge. Static
electricity is named in contrast with current electricity, which flows
through wires or other conductors and transmits energy.[1]
Static electricity is generated when any material gains or loses
electrons and becomes positively (when it loses electrons) or
negatively charged (when it gains electrons). The accumulated
charges are what called static electricity.
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4. Uses of Static Electricity
The ability of opposite charges in static electricity is what's used when designing applications
for it.
Dust removal: There are some appliances that can eliminate dust from the air, like air purifiers.
They use static electricity to alter the charges in the dust particles so that they stick to a plate or
filter of the purifier that has an opposite charge as that of the dust (opposite charges attract each
other).
This effect is also used in industrial smokestacks to reduce the pollution that they generate,
although they work in a very large scale, the effect is basically the same as the home air purifier.
Photocopy: Copy machines use static to make ink get attracted to the areas where we need the
information copied. It uses the charges to apply the ink only in the areas where the paper to be
copied is darker (usually this means text or other information) and not where the paper is white,
this process is called xerography.
Car painting: To make sure a car's paint is uniform and that it will resist the high speeds and
weather to protect the car's metal interior, it is applied with a static charge. The metal body of
the car is submerged in a substance that charges it positively, and the paint is charged negatively
with the paint sprayer.
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5. Danger of Static Electricity
There are a lot of static hazards, such as automatic equipment and static electricity can interfere
with electronic components; in the chemical industry, chemical fiber textile sector due to the
discharge sparks, can be flammable gas (acetylene, etc.), flammable liquid vapor (gasoline
vapor, etc.) detonation , causing a fire; in the sky, aircraft and air, water, gas, dust and other
friction charged, can be serious jamming aircraft, leaving the aircraft radio communications
Trek; in the pharmaceutical, electrostatic precipitator dust leaving the impure drugs, affecting
quality; In the sterile dust-free biochemical laboratories and hospitals, electrostatic adsorption
dust has adverse effects; in printing, due to static electricity can make paper bonded together
with each other, difficult to separate, resulting in printing problems; watching TV, the screen
surface electrostatic adsorption layer of dirt and dust to form oil film, the TV image clarity and
brightness greatly reduced; in the coal mine, static electricity can cause gas explosion can cause
serious personal injury and abandoned mine accident.
Be Aware at the Petrol Pump
There are warnings at the gas pump such as: No Smoking, Turn Off Vehicle, No Open Flames, No Unapproved Containers,No Cell Phone Use.
Cell Phones : have never been shown to cause a static fire at the gas pumps. The main problem with cell phones is that they cause the person
refueling their vehicle or container to be less attentive to their surroundings and their static charges. Do not use a cell phone at the pump.
Recreational Vehicles: RV’s and trailers may have lit pilot lights on them. Avoid them at the gasoline refueling stations.
Other People Refueling Their Vehicles or Containers: Be aware of the dangerous actions of other people at the refueling station. If you see
someone smoking, refueling with the vehicle running or refueling containers not on the ground, etc., avoid them, tell the attendant, stop refueling
and move to a safe distance.
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6. How can we prevent/avoid
the danger?
Change materials
When certain materials rub together, they build up static electricity. Items that commonly rub together to
cause static electricity are:
Clothes rubbing on your skin
Pajamas rubbing on your skin and the sheets in the bed
Clothes rubbing on furniture and car seats
The soles of your shoes rubbing against the rug or floor
Filling station safety
When many gallons of gasoline are transferred from a truck into the underground tank at a filling station,
there is a lot of friction caused by the gasoline flow. Also, since the fuel is very flammable, a single spark
caused by static electricity could cause an explosion.
Thus, the truck uses a grounding device on the hose that draws the electrical charges away from the
gasoline, preventing any static sparks from occurring.
People who are filling a gasoline container at the pump are advised to use caution to avoid static sparks.
When you slide out of your car, touch something metal to get rid of any excess charges. It is also
recommended to place the container on the ground when filling it.
In conclusion
Static electricity can cause sparks and other problems. You should try different materials and clothes, as well
as to ground yourself often, to prevent personal sparks. Grounding is also used to prevent sparks from
damaging computers and houses and causing explosions.
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7. Checklist
•Static electricity is an excess of electric
charge trapped on the surface of an object.
•Static electricity is generated when any material
gains or loses electrons and becomes positively or
negatively charged
•Uses of Static electricity includes:-
1. Dust removal
2. Photocopy Car caught on fire while filling the fuel.
Because of STATIC ELECTRICITY!
3. Car Paining
• Static electricity is very dangerous in some
of the industries like petroleum e.t.c
• Static electricity can cause sparks and other
problems.
• We can prevent/avoid the danger if we follow
some of the steps and rules.
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8. Resource
1. Wikipedia
2. Ask.com
3. YouTube
4. Slideshare.com
5. ibrary.thinkquest.org
6. www.sciencedaily.com
7. wunderground.com
8. ecopics.com
9. factmonster.com
10. Google images
11. photo bucket
12. Facebook
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