AERONAUTICAL LECTURING NOTES

What is matter? Matter has following properties 1. occupies space  2. All things are made of because .  3. Matters have mass. What is mass? Mass is a measure of the quantity of matter in an object. Mass determines inertia of matter. To be more specific the mass depends purely on the intensity of atoms present in the object. Atoms have electrons,protons and Neutrons. What is weight? Whatever may be the intensity of mass (whether it is heavy or light), that mass will be attracted by bigger mass, Earth.Biggest mass in the universe is Sun. If you refer universal law of gravitation, you will find the physics behind it that is Bigger mass always attracts lesser mass. The attraction force depends upon the distance between objects in interest. When mass is attracted by some vector like gravitational force, it also becomes a vector and that vector is called as Weight.                     Weight = mass x accelera...

What is Inertia? Inertia is a property of object through which it resists any change in its state. The  inability of a body to  change its state of rest or of uniform  motion by itself is called inertia. Newtons first law is more concerned with inertia and hence it is called as Law of inertia. What is mass? Mass is simply a measure of inertia. That means heavier bodies can resist forces (that are trying to deform its state) easily than a lighter body. The total number of atoms in an object determines the mass of the object. In SI unit mass is referred in Kg. Mass is a scalar. What is time? Time is a measure of duration between successive events occurring. In SI  system  of units time is measured in Seconds. Its a scalar.