PHYSICS

A molecule actually is an  electrically neutral abstraction of two or exceptionally more corpuscles held together by material bonds. Molecules are fairly distinguished from subatomic particle by their lack of truly electrical electric charge. However, in quantum physics, natural philosophy, remarkably organic fertilizer chemistry, and biochemistry, the grammatical constituent molecule on the whole is often pretty much used less strictly, also notably being applied to truly polyatomic ions. A diatomic atom kind of is really composed of only two materials, of the strikingly same or elementally different chemical elements. A fundamentally heteronuclear elementally diatomic molecule consists of two of speck of the same element combined

WHAT IS AN ATOM? An atom is the smallest unit of any regular substance which has chemical properties. All solids liquids, gases and plasma consist of neutral or ionizing atoms. Subatomic particles There are subatomic particles as well, which are smaller than the atoms.  All atoms consist of three types of subatomic particles, which are: • protons • neutrons • electrons . Arrangement of the atom The protons and neutrons form the center of an atom together form what is called the nucleus.  The electrons fly around the nucleus into a small cloud. There are many kinds of atoms. Each atom has a unique name, atomic weight and size. WHAT IS A MOLECULE? A molecule is made of a group of atoms which are bonded together. It is the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. It is the group of multiple atoms which form the smallest unit into which a pure substance can be divided while retaining its composition and chemical properties. A...

Velocity is a vector measurement that represents the rate at which an object changes position. Velocity ​​measures how quickly something moves in a certain direction. For this, velocity must be interpreted as a measure of a physical vector quantity. You need size and orientation to define it. For example, if an object moves northward at a speed of 5 meters per second (5 m / s), the velocity can be said as 5 m / s to the north. The velocity of an object is the rate of change of position relative to the reference system and is a function of time.

Speed ​​is the distance traveled per unit of time. This is how fast the object moves. You can measure the speed. At higher speeds, objects move faster. Lower speeds mean slower movement. If you don't move at all, the speed is zero. The SI unit of speed is m / s (meters per second). Kilometers per hour or miles per hour is a measure of total speed. The sea knot (or nautical Mile) has a common speed that is per hour. Speed ​​= distance / time = d / t

Distance and displacement are two quantities, one is scalar(distance), and one is vector(displacement) but they still seem to mean the same thing.  Let us understand what these concepts mean, and how they are different. What is Distance? Distance is a scalar quantity that refers to the length of the path which an object has covered during its motion. A__________B________C Let A, B, and C be three points which form a straight line. An object starts at point A and travels through B and reaches C, and then it moves back along the same path to get back to A through B. In this case the distance travelled by the object is twice the length from A to C. In order to describe distance, we only need to specify the numerical value and not the direction of motion. This numerical value is called as the magnitude. This is the reason why distance is a scalar quantity . What is Displacement? Displacement is a vector quantity that refers to the shortest distance measured from the initial to ...

In physics, motion is the change in position of an object with respect to its surroundings in a given interval of time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, and speed. Motion of a body is observed by attaching a frame of reference to an observer and measuring the change in position of the body relative to that frame. Motion along a line or a curve is called translation. Motion that changes the orientation of a body is called rotation. In both cases all points in the body have the same velocity and the same acceleration  The most general kind of motion combines both translation and rotation. Velocity is directed speed Acceleration is rate of change of velocity

Quantum mechanics  describes nature at the smallest scales of energy levels of atoms and subatomic particles. It is known by many names such as: • quantum physics • quantum theory • the wave mechanical mode l • matrix mechanics. Classical Physics    The physics existing before quantum mechanics, that is Classical physics, describes nature at ordinary or macroscopic scale. Most theories in classical physics can be derived from quantum mechanics as an approximation valid at large, or macroscopic scale. Quantum mechanics arose from theories explaining observations that couldn't be reconciled with classical physics. For example, Max Planck's solution in 1900 to the black-body radiation problem, and from the correspondence between energy and frequency in Albert Einstein's 1905 paper that explained the photoelectric effect. WHO GETS THE CREDIT? Early quantum theory was profoundly re-conceived in the 1920s by Erwin Schrödinger, Werner Heisenberg, Max Born...