Agniveer (Agnipath Scheme) Basic Science (Physics, Chemistry and Biology) Syllabus

Basic Science (Physics, Chemistry and Biology) syllabus — full chapter and topic list

Expand any chapter to see its topics and sub-topics. This is the whole examinable outline for Basic Science (Physics, Chemistry and Biology) in Agniveer (Agnipath Scheme), not a summary of it.

1. 1

   Physics

   4 topics

   • Measurement and units
     • SI units and dimensions
     • Scalars and vectors
   • Motion, force and laws of motion
     • Newton's laws
     • Work, energy and power
   • Heat, light and sound
     • Reflection and refraction
     • Temperature and thermal effects
   • Electricity and magnetism
     • Ohm's law and circuits
     • Magnetic effects of current
2. 2

   Chemistry

   5 topics

   • Matter and its states
   • Atomic structure and periodic table
   • Chemical bonding and reactions
   • Acids, bases and salts
   • Metals, non-metals and everyday chemistry
3. 3

   Biology

   4 topics

   • Cell, tissues and organisation of life
   • Plant and animal physiology
   • Human body systems
     • Digestive and respiratory systems
     • Circulatory and nervous systems
   • Health, diseases and nutrition

Basic Science (Physics, Chemistry and Biology) flashcards for Agniveer (Agnipath Scheme)

21 of 52 cards from the Basic Science (Physics, Chemistry and Biology) deck — real questions with worked answers.

1. What are the seven SI base units and the quantities they measure?

   Metre (length), kilogram (mass), second (time), ampere (electric current), kelvin (temperature), mole (amount of substance), candela (luminous intensity).

2. State the difference between a scalar and a vector quantity, with one example of each.

   A scalar has only magnitude (e.g. mass, speed); a vector has both magnitude and direction (e.g. velocity, force).

3. What is the SI unit of force and how is it defined?

   The newton (N). 1 N is the force that gives a 1 kg mass an acceleration of 1 m/s^2 (1 N = 1 kg.m/s^2).

4. What is the least count of an instrument?

   The smallest measurement that can be accurately read with the instrument (e.g. 1 mm for an ordinary metre scale, 0.1 mm for a vernier caliper).

5. State Newton's three laws of motion.

   1st: a body stays at rest or in uniform motion unless acted on by an external force (inertia). 2nd: force equals rate of change of momentum, F = ma. 3rd: every action has an equal and opposite reaction.

6. Write the three equations of uniformly accelerated motion.

   v = u + at; s = ut + (1/2)at^2; v^2 = u^2 + 2as (u = initial velocity, v = final velocity, a = acceleration, t = time, s = displacement).

7. Define momentum and give its formula and SI unit.

   Momentum is the product of mass and velocity; p = mv. SI unit is kg.m/s.

8. What is the difference between mass and weight?

   Mass is the amount of matter in a body (kg, constant everywhere); weight is the gravitational force on it, W = mg (newtons, varies with g).

9. State the value of acceleration due to gravity (g) on Earth's surface.

   Approximately 9.8 m/s^2 (often taken as 9.81 m/s^2).

10. What are the three modes of heat transfer?

    Conduction (through solids by contact), convection (in fluids by movement of particles), and radiation (through electromagnetic waves, no medium needed).

11. Define specific heat capacity.

    The amount of heat required to raise the temperature of 1 kg of a substance by 1 degree Celsius (or 1 K). SI unit: J/(kg.K).

12. What is the speed of light and the approximate speed of sound in air?

    Light travels at about 3 x 10^8 m/s in vacuum; sound travels at about 340 m/s in air at room temperature.

13. State the laws of reflection of light.

    1) The angle of incidence equals the angle of reflection. 2) The incident ray, reflected ray and normal at the point of incidence all lie in the same plane.

14. What is refraction of light?

    The bending of light as it passes from one transparent medium to another due to a change in its speed.

15. What are the conditions required for an echo to be heard?

    The reflecting surface must be at least about 17 m away so the reflected sound returns after at least 0.1 second, the minimum time interval the ear can distinguish.

16. State Ohm's law and its formula.

    At constant temperature, the current through a conductor is directly proportional to the potential difference across it: V = IR (V = voltage, I = current, R = resistance).

17. What is the SI unit of electric current, charge and resistance?

    Current: ampere (A); charge: coulomb (C); resistance: ohm (Omega).

18. Give the formula for electrical power in terms of voltage, current and resistance.

    P = VI = I^2 R = V^2 / R. SI unit is the watt (W).

19. What are the magnetic poles, and what is the rule for poles interacting?

    Every magnet has a north and south pole. Like poles repel and unlike poles attract.

20. How are resistors combined in series and in parallel?

    Series: R = R1 + R2 + R3 ... (resistances add). Parallel: 1/R = 1/R1 + 1/R2 + 1/R3 ... (reciprocals add).

21. What are the three common states of matter and their key properties?

    Solid: definite shape and volume. Liquid: definite volume but takes the shape of its container. Gas: neither definite shape nor volume, fills its container.

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