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Electrostatics
Electrostatics is the branch of physics that deals with the study of charges at rest. A common electrostatic phenomena is plastic wrap sticking to your hand and itself when removed from the box. Everything to do with electrostatics goes in this category.
1,860 Questions
No. Radioactive elements are normally a result of the atom actually being an isotope of that element. An isotope is an atom of an element that has a different amount of neutrons than the norm. For example, the normal amount of neutrons in a Carbon atom is six, but Carbon-14 has eight, and Carbon-16 has ten. These isotopes are normally radioactive.
Does CH3NH2 have a dipole moment?
Yes, CH3NH2 (methylamine) has a dipole moment because the molecule is polar. The nitrogen atom is more electronegative than the carbon and hydrogen atoms, leading to an unequal sharing of electrons and the presence of a net dipole moment in the molecule.
Why does static electricity happen?
Static electricity is an electric charge, it is created by friction, and causes sparks, and attracts dust or hair
example:
....walk across a carpet, electrons move from the rug to you. Now you have extra electrons. Touch a door knob and ZAP! The electrons move from you to the knob. You get a shock. because sometimes, as you rub two materials together the tiny, negatively charged electrons move from one material to another.
How can different colors of light be made?
White light contains all colors. It can be split using a prism (a transparent body, like glass, anything that refracts light, as a drop of water). The colors are then seen as individual wavelengths as the colors: red,orange,yellow,green, blue, indigo, and violet. For example, sunlight passing through droplets of water in the atmosphere after a thunderstorm, producing a rainbow is a good demonstration of how the different colors of light are made.
Why does friction cause magnetic and electrostatic forces?
Friction affects Basketball in many ways. For starters, a player wouldn't be able to stop or run because of the lack relative motion on the surface of an object. Friction is necessary for the sport of basketball.
Who was the greek philosopher that discovered static electricity?
Thales of Miletus, a pre-Socratic Greek philosopher, is often credited with discovering static electricity around 600 BCE. He observed that amber, when rubbed with fur, attracted lightweight objects—a phenomenon now known as static electricity.
How does friction generates static electricity?
Friction generates static electricity by causing two surfaces to rub against each other, stripping away some of the electrons from one surface and depositing them onto the other surface. This creates an imbalance of positive and negative charges, resulting in static electricity buildup.
Where can you find some good GCSE Child Development revision websites?
Some good GCSE Child Development revision websites include BBC Bitesize, Revision World, and Tutor2u. These websites offer resources such as revision guides, quizzes, and past exam papers to help you prepare for your exams.
5 examples of static electricity?
1) Electrostatic precipitation uses static electricity and an electrical charge to filter air pollution by charging harmful particles so they are attracted to collection plates.
2) In electronics and industry, static electricity is used in capacitors in a number of ways for various applications.
What is technological use of static electricity?
Paint spraying cars: the paint particles are given a negative charge, and the car frame is given a positive charge, so the paint sprays out, and sicks to the car, and is attracted to all the hard- to reach areas
Electrosatic precipitator; in coal fired power station theses are used to stop the dust particles reaching the atmosphere. Particles of ass pass through a charged grid, and becone charged. They then stick to plated either side of this grid, where they can be disposed of safely
Photocopier; A charged drum is in the photocopier. Light is then shone through the paper, and whete ther is no print light hits the drum and it looses its charge. This leaves charge where there needs to be ink. Ink is the pulled onto the charged drum, and transfered onto paper
Antistatic floors; to avoid static charges in hospital, the floors are made out of an antistatic material, so no charge can build up.
How does a contracting protostar convert gravitational energy into thermal energy?
A contracting protostar converts gravitational energy into thermal energy through gravitational collapse. As the protostar shrinks in size, gravitational potential energy is converted into kinetic energy, causing the temperature and pressure in the core to increase. This process eventually leads to the ignition of nuclear fusion, where hydrogen atoms combine to form helium, releasing vast amounts of thermal energy in the form of light and heat.
In electricity what takes the place of m and g?
In electricity, the symbols "I" and "V" are commonly used to represent current and voltage, respectively, instead of "m" and "g." Current (I) represents the flow of electric charge through a conductor, while voltage (V) represents the electrical potential difference between two points.
Why is electrostatic spray gun more efficient than ordinary spray gun?
The electrostatic spray gun is more efficient than an ordinary spray gun because more of the paint gets on to the object being painted. The droplets being charged makes them become attracted to what is being painted, rather than spraying all around.
What role does static electricity play in aircraft mechanics?
Static electricity can accumulate on aircraft surfaces during flight, posing a safety hazard during maintenance activities. Grounding straps and bonding procedures are used to safely discharge static electricity before maintenance workers begin their tasks. Failure to manage static electricity can lead to sparks and potential fires in the presence of flammable materials.
How does the principle of oppposite charges attracting help to produce lightning?
The polarization of the charges both positive and negative that occurs in a storm cloud results in the strike of lightning. Two mechanisms trigger the polarization process. One is the frictional charging and the other is the freezing process.
What is mean of conduct certificate?
A conduct certificate is something that may be issued following a felony conviction. The purpose of this is to help the person find housing and employment in order to become a part of society again.
How can static electricity clean out cigarette smoke?
Static electricity can attract and capture microscopic particles like cigarette smoke in the air. When a surface becomes charged with static electricity, the particles are drawn to it and adhere to it, effectively removing them from the surrounding air. This process helps to clean the air by reducing the presence of smoke particles.
a closed circuit is a complete circuit with no breaks at all,
one example:- a closed circuit occurs when you turn the light switch on
an open circuit has a physical break in the circuit, which stops the flow of electrons.
one example is when the lights are turned off, the switch creates a physical break in the circuit
What is the importance of static electricity?
Static Electricity
- Static electricity is usually a 'high voltage' but low power form of electricity. You can experience it by getting a shock when touching a door knob (winter time, dry cold air, walking across a carpet) or seeing socks clinging to other clothes in a dryer. While static electricity can easily destroy miniature electronics, it is a major component in making copiers and laser printers work. Other forms of electricity typically have much greater power capabilities and can be just as useful or destructive.
- Lightning is static electricity, and it can damage buildings and harm people.
- The disadvantages of static electricity would be that it is quite unpleasant if you get a shock. I think the advantages would be that it could help scientists to make progress in their 'inventions' or 'studies'. Also it is quite a lot of fun! I love doing experiments in class with static electricity and making bits of paper stick to my ruler. (NB. I am only 12)
- One disadvantage I think it be is that you could get a shock and it could hurt.(Ouch!) Another disadvantage is that if you take off your hat in winter time and you have long hair (which I have), your hair will be sticking up very badly. One advantage is that you could do cool experiments with static electricity like make water bend, make cereal fly, and other cool stuff. You could also get a shock which might hurt but personally I don't think it hurts, I think it's cool. Another advantage is that in summer, if you take off your hat and you have long hair, you don't get static because in summer it isn't that humid. Another advantage is that in school, you get to do lots of cool projects where you can make pepper fly or off or on a piece of paper with a balloon (or make your hair follow where ever the balloon goes if you have long hair.)
- Static electricity is used to paint cars, the charge makes the paint spread evenly.
- Static electricity can damage sensitive electrical components, such as the parts inside your computer. To prevent this, these parts are handled with antistatic bags and wrist straps, which drain the static charge off the person. Static electricity can also cause uncomfortable shocks to a person who becomes "charged up". To experience this shock, drag your feet across a carpet in socks, then touch your finger to a doorknob.
- Assuming we are talking about negative effects to your computer here, the damage occurs when your RAM which is basically millions or billions of tiny electrical switches, and is found in most components of the computer (aside for just the actual RAM boards), is exposed to static electricity. The static electricity can magnetize those tiny switches and cause them to not be able to flip on and off anymore. As a result, your computer can suffer drastically reduced performance or even cease to function entirely.
- Have you built a Vandegraff generator? Or a Leyden jar? Those things are fun!
- Static electricity can be responsible for the ignition of flammable gases, such as the vapors produced by petrol (gasoline) when you are filling your car.
- Static electricity can be harmful when you get a shock or by walking across the carpet and then touching a doorknob and getting a shock. But forget those dumb thing but have forgotten about those really cool experiments that we did in grades 4-8? For example making cereal fly and making pepper fly.
- It has limited distance.
- Well, what are we using it for? Making my hair stand up? It works for that. Or making dust stick to my monitor screen. Or causing loud crackling noises on the radio, maybe. These valuable tasks aside, static is more a nuisance than anything. If you come up with something more useful to do with static than zap my cat when I try to pet it, please let me know.
- Static electricity develops in some circumstances in electrical insulators -- glass, plastic, etc. It's often a nuisance byproduct which can't be directly avoided in the course of doing something useful, such as making your CRT monitor operate. Sure it attracts dust, but an occasional wipe with a damp cloth isn't to high a price for most of us to pay for the advantage. If the nuisance or danger is sufficient, then some means of dissipating the static charges safely must be provided, such as the grounding straps which hang down from the gasoline tanker, eliminating the static charges before they cause a problem. I guess it's valid to ask whether we truly "use" static electricity. If you have one of those plastic oil change reminders which clings to your windshield without adhesive, you are "using" static electricity. No particular disadvantage there, with plenty of advantage over adhesive. There may be a few other cases where the presence of static charges may be anticipated and exploited, but it's generally not reliable enough to truly use.
- Another [other than copy machines] advantageous USE of static electricity is in "painting" metallic products by a method called "POWDER COATING." As the name implies, liquid paint is not used, but the "paint" is applied to the article in the form of a dry powder.
Then the object is placed in an OVEN to soften and fuse the powder into a homogeneous film. Some objects which are painted by this method include: bicycle, tricycle, and motorcycle frames, metal filing cabinets, metal frames of office chairs and tables, etc., etc.
A dry powder sprayed on these metals DOES NOT WANT TO STICK. So, to make it stick until it can be melted/fused in the oven, STATIC ELECTRICITY IS USED. The metal object is hung on a metal conveyor line, which is charged negatively [I think], while the spray gun and paint powder is charged positively [I think. The polarity could be the other way around]. Then when the positively charged powder is sprayed onto the negatively charged object, it "sticks." Once the powder is melted/fused, it is firmly "stuck" to the metal object. Again, this is another EXAMPLE of an advantage of STATIC ELECTRICITY
- it is used in printers to distribute the ink.
- it is used in air fresheners and to clean up pollution.
The difference-relationship between static and current electricity?
Static electricity is the buildup of electric charge on the surface of an object, while current electricity is the flow of electric charge through a conductor. Static electricity involves stationary charges, whereas current electricity involves moving charges. When static electricity is discharged, it can create a current flow.
What is a conductor of static electricity?
static electricity doesn't really need a conductor, a high enough voltage will cause electrons to jump a distance, without a conductor, as long as there is no insulator involved. All you need is a sufficient amount of free electrons on one side, say your finger tip, and a good ground on the other side, try a car door handle.
What is the differences between electrostatic force and gravitational force?
A few basic differences are the following. Gravitational force is the force generated between two masses, such as the Earth and the Moon, an apple and the Earth, or anything else possessing mass in the universe. As a matter of fact, Mars is exerting a gravitational force on you - it extends forever. The formula for gravitational force is: Fgrav. = (Gm1m2)/(d2) where G is the gravitational constant 6.67 x 10-11 m1 is one mass in kilograms, m2 is the other mass d is the separation distance in meters between the two masses. ---- Electrostatic force exists between two charged objects. Unlike gravitational force, electrostatic force can be either a force of ATTRACTION or one of REPULSION, depending on the nature of the two charges; like charges repel, opposites attract. But this force also extends forever and its formula is surprisingly similar to the gravity formula: Felectrostatic = (Cq1q2)/(d2) where C is Coulomb's constant 8.99 x 10-9 q1 is one charged object in coulombs of charge, q2 is the other. d is the separation distance in meters. But YOU are to judge whether the two objects in question will attract or repel. For instance, a proton has a charge of +1.60 x 10-19 C. An electron has a charge of -1.60 x 10-19 C. They are opposite, so they will attract.
Why is that specific number use in a coulomb?
The charge of an electron is approximately 1.602 x 10^(-19) coulombs. This number represents the fundamental unit of charge that an electron carries, and is used commonly in physics to describe the charge of subatomic particles.
Why does every metal conduct electricity?
Metals conduct electricity because they have a sea of delocalized electrons that are free to move within the material, allowing for the flow of electrical current. This unique electron arrangement is a result of metallic bonding, where metal atoms share valence electrons collectively.
