From fundamental quantities to Motion, the Physics classes are designed to fit any need—all taught by highly-vetted expert instructors.
Fundamental quantities are the basic units upon which other units depend. There are several quantities that can be measured against acceptable standards.
Projectile refers to an object that is in flight after being thrown or projected. Most base balls, footballs or basketballs are good examples of objects that perform projectile motion when thrown.
Energy is the capacity to do work. Work is done when a force applied to an object moves that object. Power is the rate at which work is done. There are various sources of energy that enable work to be done.
A wave motion is a process of transferring a disturbance from one point to another in a medium without any transfer of the particles of the medium. Light is a form of energy that causes sensation of vision, which enables us to see.
Rockets and Satellites are exciting technological advances of the modern world. A Rocket is an engine that produces a great power, more power for its size than any other kind of engine.
Electric Current is the rate of flow of electric charge along a conductor. The potential difference between two points in an electric field is defined as the work done in moving a positive charge of 1Coulomb from one point in an electric field to another.
An atom consists of a central massive nucleus surrounded by light electrons moving in orbits around the nucleus. The nucleus itself consists of protons and neutrons.
Semiconductors are crystalline solids whose electrical conductivity is between that of a conductor and a n insulator. They are used in the manufacture of electronic devices like diodes, transistors, circuits, etc.
A force is a vector quantity with both magnitude and direction. A number of forces can act on an object at the same time. Equilibrium of forces describes the state of forces where the size and direction of forces acting on an object is balanced.
Momentum helps to measure the mass of moving objects. Momentum (p) of a body is defined as the product of its mass and its velocity (p = mv). Impulse is the product of the force and the time during which the force acts. (I = Ft).
Gas pressure is a result of the movement of molecules of gas exerting force on the walls of their container. Liquids also exert pressure on their container in all directions.
Electrolysis is the process of using electric current to cause a chemical reaction to occur. In this reaction, bonds are broken to release positively charged and negatively charged ions.
Electric field can be described as a physical field that surrounds electrically-charged particles and exerts force on all other charged particles in the field, either attracting or repelling them.
Electromagnetic fields are electric and magnetic force fields that surround a moving electric charge. Electromagnetic fields are applied in the making of some electrical appliances that are used at homes, offices and industries.
Alternating circuits are powered by alternating current or voltage. This means the value of either the voltage or the current varies about a particular mean value and reverses direction periodically.
Radioactivity is the spontaneous decay of the nucleus of the atoms of an element during which a-particles, ß-particles, and y-rays and energy are emitted.
Electrons in atoms exist in discrete or quantized energy states. Quantized energy means that the electrons can possess only certain discrete energy values; values between those quantized values are not permitted.
Wave particle paradox explains the concept that some matter can either behave as a wave or a particle. At the end of this module, among other things, students will gain very good understanding of wave nature of matter, Compton effect, uncertainty principle, electron diffraction experiments, particle nature of matter, calculation on uncertainty, photoelectric effect, and wave particle duality