When an ebonite stick is rubbed with a woolen cloth, electrons are transferred from the wool to the stick, giving it a surplus of electrons. Because neutral materials have equal numbers of electrons and protons to balance out their charge, the rubbed stick possesses a net negative static charge.Continue Reading
The woolen cloth becomes positively charged by the same magnitude that the stick becomes negatively charged to conserve the total charge in both materials. These charges create static on the surfaces of the two materials, so the resulting phenomenon is called static electricity. Electrification by friction is one of three ways that static charge on the surface of a material can be induced.
When a material is connected to a source of positive or negative potential, such as the terminals of the battery, the material gains the same potential as the source. This process is called charging by conduction.
When a charged material is brought close to an isolated neutral material without contact, it causes an opposite charge to form on the neutral material. This is called charging by induction. If the material with the induced charge is grounded, the charge dissipates to the ground either by electrons flowing into the material for a positive charge or electrons flowing into the ground for a negative charge.Learn more about Chemistry
Glow stick bubbles are soap bubbles mixed with the contents of a glow stick. The glow is produced when the chemical inside the glow stick goes from a high energy state to a low energy state, releasing light in the process.Full Answer >
A quarter stick of dynamite has an average size of 1 inch in diameter and 6 inches in length. It is made with thick cardboard walls and filled with explosive powder. A quarter stick, which is also called an M-1000, is usually used as a firecracker.Full Answer >
To make alum crystals, gather alum, two clean jars, nylon string, a craft stick and hot tap water; saturate the water with the alum; after 12 hours, wrap nylon string around a seed crystal to grow a large alum crystal. This process takes about 24 hours to produce small crystals and about one week to grow a large crystal.Full Answer >
The lighting of an incense stick in one corner of a room and the subsequent spreading of the odor to different parts of the room is an example of diffusion. Lighting a cigarette causes the smoke to spread to all parts of the room due to diffusion.Full Answer >