Question

i want some basic physics

Answer 1

Physics is the study of basic properties, materials, and forces in our Universe. Our new physics section will start off with some background material about space, time, and matter. It will also include sections on mechanics, electricity and magnetism, thermal physics, atomic physics and particle physics, and tools for math and science (vectors, coordinate systems, units of measurement, etc.).
The new physics section will also have links to many data sources relevant to Earth and space science. The links below provide access to some of the physics-related materials currently on the site. They are organized roughly into the categories we will use in the forthcoming physics section.
Starting Points for Science
Space - Distance - Astronomical Unit (AU), Angstrom, Wavelength
Time - Year, The Seasons
Matter
What is Mass?, Atomic Mass
States of Matter
The Four States of Matter, Changes of State: Solids, Liquids, and Gases
Solid, Liquid (Fluid), Gas, Plasma
Mechanics
Gravity
The Four Fundamental Forces
Orbital Mechanics
Kepler's Laws of Planetary Motion - 1st Law, 2nd Law, 3rd Law
Elliptical Orbits - Eccentricity, Perihelion & Aphelion
Interactive animation showing orbit variables
Fluid Mechanics
What is a Fluid?
Liquid, Gas, Plasma
Pressure
Turbulence: All Mixed Up
Electricity and Magnetism


Electricity
The Basics of Electric Circuits
The Basic Facts About Direct (DC) and Alternating (AC) Current
Transformers - the Point of Power Grid Disruption
Home Delivery of Voltage - You Supply the Electrons
Conductors versus Semiconductors
Lightning Formation
Magnetism
The Magnetic Field
Magnetism
The Force of Magnetism
The Invisible World of Magnetic Fields
Disk Magnet and Compass interactive (Flash)
Bar Magnet and Compass interactive (Flash)
Material which is magnetic
Generating a Magnetic Field
Basic Facts About the Effects of Magnetic Fields on Charged Particles
Basic Facts About Spiral Motion
Basic Facts About Bounce Motion
The Facts About Drift Motion
Electromagnetic Radiation
Electromagnetic Spectrum
Radio Waves, Infrared (IR) Radiation, Visible Light, Ultraviolet (UV) Radiation, X-rays , & Gamma Rays
ExploraTour - Looking at the World in a Different Light
Photon
Spectra
Thermal Physics
No entries here yet. The new physics section will include topics like heat, temperature, the laws of thermodynamics, conduction & convection, etc.
Atomic Physics and Particle Physics


A Model of the Atom
Atomic Nucleus
Atomic Number, Atomic Mass
Isotope
Elementary Particles
Proton, Neutron, Electron
Cosmic Rays
Neutrinos & Neutrino History
Fundamental Forces
The Nuclear Force
Fusion Reactions
Elements (Chemical Elements), The Periodic Table of the Elements
Radiation
Particle Radiation
Radioactive, Radioactive Decay, Half-Life
What's a molecule?