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When you rub plastic, you transfer electrons from one material to the other. ... Because plastic is an insulator, the electrons cannot flow through it so they effectively get stuck there they are static
Polythene has a higher affinity for gaining electrons than copper. When polythene is rubbed, electrons are transferred from one material to the other, leaving polythene with a net negative charge. Copper, on the other hand, has a lower affinity for gaining electrons, so it is more difficult to charge by rubbing.
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What makes copper so conductive?
Copper is conductive due to its atomic structure, which allows for easy movement of electrons. Its outer electron shell is loosely bound, making it easy for electrons to move freely within the structure. This leads to high electrical conductivity in copper.
Why is copper easy to heat?
Copper has high thermal conductivity, which means it can quickly absorb and transfer heat energy. This makes it easy to heat up and manipulate for various applications such as heating coils and cooking pots. Additionally, copper has a low specific heat capacity, meaning it requires less energy to raise its temperature compared to other materials.
Advantages of polythene?
ADVANTAGES1. Polythene film is one of the most lightweight and durable packaging mediums available.2. Plastic packaging makes an important contribution to reducing food spoilage rates.3. Polythene ducting is compatible with most fans, heaters, air conditioners, air handling units, etc4. Polythene Bags use less energy and resources to create than glass or paper.5. Clear polythene allows recipients to view the contents (such as a magazine cover) prompting them to open immediately if the item is of interest or expectedDISADVANTAGES1. Polythene is not biodegradable, and if dumped in the soil causes harm to the plant life, as the toxic substances of polythene get blocked among the soil particles.2. Polythene threatens the life in the water bodies. The chemicals in polythene affects the survival of flora and fauna of the aquatic and marine Eco-systems.3. Polythene is also likely to clog the drains causing problems in the water flow of the pipes. The pipe blockages would cause flooding and the free flow of water is disturbed.4. Polythene is harmful for animals if swallowed. It solidifies inside the abdominal cavity which ultimately becomes lethal to the animal.5. In most households poly bags are used to preserve food items. It has been found out, the colourful poly bags contains lead and cadmium which are toxic and cause adverse effects to human health.6. If polythene is burnt in open air Hydrogen cyanide which is carcinogenic (cancer causing) is released.7.Hydrogen cyanide causes environmental pollution and health hazards
Does copper offer an easy path for electrons to flow?
Yes, copper is a good conductor of electricity because its outer electron is loosely held and can move easily between atoms. This allows for easy flow of electrons through a copper wire, making it an ideal material for electrical wiring.
How easy is it to melt copper?
Copper has a relatively high melting point of 1,984 degrees Fahrenheit (1,085 degrees Celsius), so it requires significant heat to melt. However, it is possible to melt copper using a furnace or torch commonly used in metalworking and jewelry making.
Why copper wire is more elastic than rubber?
because copper is a metal and polthene is a non metal? Infact, polythene doesn't even conduct electricity....
How can a conductor be made to hold its charge?
It is not possible to make a ordinary conductor hold it's charge permanently.But you can make a ordinary conductor(e.g.,)a wire to hold charge for a short period.This is because a charge stored in a conductor leaks to the surroundings due to ionisation of air. But it is possible to charge a conductor like a copper sphere. for this the copper sphere is first connected to ground and a negatively charged ebonite rod near it.the copper sphere becomes positive as the negative charges in it flow to the ground.the sphere is disconnected from ground and the ebonite rod is taken away.now the copper sphere holds positive charge. note: it is easy to charge an ebonite rod by rubbing it with fur.
Uses of polythene bags?
plastic packing is light, cheap, easy to carry and durable
Why should be polythene not banned?
it may be more echo friendly to use material bags but you can also reuse polythene bags so whats the point it is easy to carry. it is cheap and best.
Is polythene a poor conductor of heat and electricity?
Yes, polythene is a poor conductor of heat and electricity due to its molecular structure which does not allow for the easy flow of heat or electrons. This makes polythene an insulating material that is often used to protect against electrical currents and heat transfer.
Why should you discourage the use of polythene bags?
we should discourage the use of polythene bags as they are not biodegradable and thus cause pollution..
Is copper easy to cut?
Yes, copper is easy to cut because it isn't tough.
Why did people mine copper in the copper age?
Because copper is relatively easy to smelt.
What proportion of fat to flour is used when making cakes by the rubbing in method?
It is used for easy rubbing of fat into flour.
Why is polythene called thermoplastic?
Polythene is also known as polyethylene. Polythene is a type of plastic that is widely used in packaging and many of the plastic products we use today. You see polythene in all shapes and sizes. Polythene is such a widely used product because it is easy to bend it and mold it into the shape that you want. This action of molding the plastic is called thermosetting. Polythene is heated to high temperatures and molded into the shape that is desired. Then the object is set aside and cooled. Once the object is at room temperature (or close to it) the object will not break or bend so readily. Now, if you take the prefix of thermosetting you just have "thermo." Thermo is typically used with words meaning temperature or heat. Because polythene is a plastic and it can be set in its shape by heat, it is called thermoplastic.
How is copper made in a star?
Somebody wished upon a star for some copper... Easy
What are the positives and negatives of copper?
Copper is easy to mine but is often to soft for uses if it is pure.
