Energy
What Is Energy in Physics?
the property of matter and radiation which is manifest as a capacity to perform work (such as causing motion or the interaction of molecules).
Types Of Energy
Potential Energy
Kinetic Energy
Mechanical Energy
Chemical Energy
Electrical Energy
Thermal Energy
Light Energy
Sound Energy
Nuclear Energy
Elastic Energy
Gravitational Energy
Sonar, ultrasonic (greater than 20 kilohertz) music, speech, and environmental noise are all forms of sound energy.
The heat from a heater.
Examples of this would be steam, water, wind, gas, or liquid fuels that power turbines.
Lightning, batteries and even electric eels are examples of electrical energy
A light bulb, the glowing tubes in a toaster, the sun, and even automobile headlights are examples of light energy.
Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy.
Atom
Made Up of sub-atomic articles
electrons
protons
neutrons
Neutral Charged
Positively Charged
Negatively Charged
Atomic Mass= protons+neutrons
Atomic number = protons = electrons
Atomic Mass-Atomic Number=No, Of Neutrons
When the outermost shell is full the atom is generally stable and least reactive
The electrons in the outermost shell are called
Types Of Electricity
Electrostatic Forces Of Attraction
Static electricity is due to electric charge that builds up on the surface of an insulator. The charge that has built up cannot easily flow away from the insulator, which is why it is called static electricity.
An atom has equal amounts of negative and positive charges which cancel each other out. This means an atom has no overall charge. Electrons do not always stay attached to atoms and can sometimes be removed by rubbing 2 materials.
When 2 materials are rubbed together, electrons are transferred from one material to the other.