Semester1

########## PaperTitle:BasicsofPhysicalBodies Paper Code: PHYIDC101-3 Paper Credit:03(3+0+0) Lecture:45

########## CourseObjective:

To familiar the students of other discipline the concept of motion from the points of view of two observers one in inertial and other in non inertial frame of reference. The law of universal gravitation and interpretation of lunar tides and various geophysical phenomena have been incorporated. Indian space programme also highlighted.

########## CourseOutcome:

Students are expected to learn the basic physics. They are also expected to get the holistic scientific reason for different geophysical phenomena. Also it is expected that they will be interested to learn the contribution of ISRO has made so far for building India asa self reliant nation in Space research.

Unit I The units Centimetreand the Second, Weight and Mass. TheSIsystems and standards Basic concepts: The units Centimetreand the Second, Weight and Mass. TheSIsystems and standards Basic concepts: ofmeasurement. Density. Thelawofconservationofmass.ActionandReaction.Additionof velocities. Force is a vector. Motion in inclined plane. (5 Lectures) :Differentpointsofviewaboutmotion.ThelawofInertia.Themotionisrelative. LawsOfMotion Celestialobserver'spointofview.AccelerationandForce.Rectilinearmotionwithconstant acceleration.Pathofabullet.Circularmotion.Lifeatg=0.Motionfromanunreasonablepointof view. Centrifugal forces. Coriolis forces. (8 Lectures) Unit II Recoil.The law of conservation of momentum.Jet propulsion. Motion under the Conservation Laws: Laws: action of gravity. The law of conservation of mechanical energy. Work.Units of measurement of work and energy. Power and efficiency ofmachines. Energy loss.Collisions. (5 Lectures) Lectures) Equilibrium. Simple oscillations. Displaying (demonstration of) oscillations. Force Oscillations: andpotential energy in oscillations. Spring vibrations.Resonance. (5 Lectures) Torque. Lever.Energylossinpath.Verysimplemachines.Methodof MotionOfSolidBodies: additionofparallelforcesactingonabody. Centreofgravityandcentreofmass. Angular momentum.Lawofconservationofangularmomentum.Angularmomentumasavector.Tops.Flexible shaft. (7 Lectures)

Unit III WhatholdstheEarthup!.Lawofuniversalgravitation.Weighingtheearth. Measurement of g in Gravitation: WhatholdstheEarthup!.Lawofuniversalgravitation.Weighingtheearth. Measurement of g in Gravitation: the service of mankind. Weight underground. Gravitational energy. How planets move. Interplanetary travel. If there were no moon! India's Space Programme. ISRO's contribution in space exploration, communication and remote sensing. (9 Lectures) Atmospheric Pressure. How Atmospheric Pressure was discovered.Atmospheric pressure Pressure: andweather.Changeofweatherwithaltitude.Archimedes'principle.Extremelylowpressure. Vacuum. Pressure of millions of atmosphere. Hydrostatic pressure, Hydraulic press.

########## (6 Lectures)

########## Reference:

- ● Physics for Everyone. (BOOK1): PHYSICAL BODIES.L D Landau, A. I. Kitaigorodsky. Mir Publishers, Moscow. Translated from theRussian by (Martin Greendlinger,D. Sc., Math)
- ● TheFeynmanLecturesonPhysics(I,II&III) (PearsonEducationPublication)