Physics Concepts Tutorials, Exams of Environmental Science

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1.0 Concept of Units and dimensions

1.1 Explain the concept of Units, Physical quantity, F u n d a m e n t a l physical quantities and Derived physical quantities 1.2 Define unit, fundamental units and derived units, State SI units with symbols 1.3 State Multiples and submultiples in SI system, State Rules of writing S.I. units, State advantages of SI units 1.4 Define Dimensions, W r i t e Dimensional formulae of physical quantities 1.5 List dimensional constants and dimensionless quantities 1.6 State the principle of homogeneity of dimensions 1.7 State the applications and limitations of dimensional analysis 1.8 Errors in measurement, Absolute error, relative error, percentage error, significant figures 1.9 Solve problems Advantages of SI units

3.0 Concept of Dynamics

3.1 Write the equations of motion in a straight line. Explain the acceleration due to Gravity. 3.2 Explain vertical motion of a body and derive expressions for a) Maximum Height, b) Time of ascent, c) time of descent, and d) time of flight 3.3 Derive height of a tower when a body projected vertically upwards from the top of a tower. 3.4 Explain projectile motion with examples 3.5 Explain horizontal projection and derive an expression for the path of a projectile in horizontal projection 3.6 Explain oblique projection and derive an expression for it. Derive formulae for a) Maximum Height b) time of ascent c) time of descent and d) time of flight e) Horizontal Range, f) Maximum range 3.7 Define force, momentum, angular displacement, angular velocity, angular acceleration, angular momentum, moment of inertia, torque 3.8 Solve t h e r e l a t e d n u m e r i c a l problems

4.0 Concept of Friction

4.1 Define friction and classify the types of friction. 4.2 Explain the concept of normal reaction. 4.3 State the laws of friction. 4.4 Define coefficients of friction, Angle of friction and angle of repose. 4.5 Derive expressions for acceleration of a body on a rough inclined plane. (Upwards and downwards) 4.6 List the advantages and disadvantages of friction. 4.7 Mention the methods of minimizing friction. 4.8 Explain why it is easy to pull a lawn roller than to push it. 4.9 Solve t h e r e l a t e d n u m e r i c a l problems

6.0 Concepts of Simple harmonic motion

6.1 Define Simple harmonic motion, Give examples, state the conditions. 6.2 Explanation of uniform circular motion of a particle is a combination of two perpendicular S.H.M.s. 6.3 Derive expressions for displacement, velocity, acceleration, Frequency, Time period of a particle executing SHM. 6.4 Define phase of SHM. 6.5 Define Ideal simple pendulum and derive expression for time period of simple pendulum. 6.6 State the laws of motion of simple pendulum. 6.7 Solve t h e r e l a t e d n u m e r i c a l problems.

Concept of heat and thermodynamics

7.1 Explain the concept of expansion of gases 7.2 State and explain Boyle’s and Charles laws. 7.3 Define absolute zero temperature, absolute scale of temperature 7.4 Define ideal gas and distinguish from real gas 7.5 Derive Ideal gas equation. Define specific gas constant and universal gas constant, write S.I unit and dimensional formula. Calculate the value of R. 7.6 Explain why universal gas constant is same for all gases 7.7 State and explain isothermal process and adiabatic process 7.8 State first and second laws of thermodynamics and state applications 7.9 Define specific heats and molar specific heats of a gas, Derive CP-CV =R 7.10 Solve t h e r e l e v a n t n u m e r i c a l problems

9.0 Concepts of properties of matter

9.1 Explain the terms elasticity, stress, strain and types of stress and strain. 9.2 State and explain Hooke’s law. 9.3 Definitions of Modulus of elasticity, Young’s modulus(Y), Bulk modulus (K), Rigidity modulus ( n),Poisson’s ratio ( ), 9.4 Define surface tension and give examples. 9.5 Explain Surface tension with reference to molecular theory. 9.6 Define angle of contact and capillarity and write formula for Surface Tension. 9.7 Explain the concept of viscosity, give examples, write Newton’s formula. 9.8 Define co-efficient of viscosity and write its units and dimensional formula and State Poiseulle’s equation for Co-efficient of viscosity. 9.9 Explain the effect of temperature on viscosity of liquids and gases. 9.10 Solve t h e r e l a t e d n u m e r i c a l problems

Concepts of Electricity and Magnetism

10.1 Explain Ohm’s law in electricity and write the formula. 10.2 Define specific resistance, conductance and state their units. 10.3 Explain Kichoff’s laws. 10.4 Describe Wheatstone’s bridge with legible sketch. 10.5 Describe Meter Bridge for the determination of resistivity with a circuit diagram. 10.6 Explain the concept of magnetism. State the Coulomb’s inverse square law of Magnetism. 10.7 Define magnetic field and magnetic lines of force and write the properties of magnetic lines of force. 10.8 Derive an expression for the moment of couple on a bar magnet placed in a uniform magnetic field. 10.9 Derive equations for Magnetic induction field strength at a point on the axial line and on the equatorial line of a bar magnet. 10.10 Solve the related numerical problem

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