1st Year Physics 2nd Quarter Book Paper

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

1. At constant temperature, the kinetic theory of gases leads to:

   1. Boyle's law

   2. Charles law

   3. Avogadro's law

   4. Joseph Lussat's law

2. Work has dimensions like:

   1. Torque

   2. Momentum

   3. Velocity

   4. Power

3. The quantity which remains constant in the equation of continuity is:

   1. Volume

   2. Mass flow rate

   3. Pressure

   4. Area

4. The Sl unit of product of pressure and volume is:

   1. Watt

   2. Joule

   3. Pascal

   4. Nm

5. A ball is thrown upward. As it rises, its:

   1. K.E. increases, P.E. decreases

   2. K.E. decreases, P.E. increases

   3. Both K.E. and P.E. increases

   4. Both K.E. and P.E. remain constant

6. The upthrust acting on a floating object is equal to:

   1. Volume of the object

   2. Density of the fluid

   3. Weight of the object

   4. Volume of water displaced

7. The device which operates based on the second law of thermodynamics is:

   1. Thermometer

   2. Voltmeter

   3. Barometer

   4. Heat engine

8. The work done is said to be negative if:

   1. Work is always positive

   2. (eq) < 90^o

   3. (eq) > 90^o

   4. (eq) = 90^o

9. The lift force experienced by an aeroplane wings is primarily due to:

   1. Viscosity of air

   2. Density of air

   3. Pressure difference above and below the wing

   4. Gravitational force

10. The direction of flow of heat between two bodies in thermal contact is determined by:

    1. Internal energies

    2. Kinetic energies

    3. Potential energies

    4. Atmospheric pressure

11. During free fall, the loss in P.E. is equal to:

    1. Loss in K.E.

    2. Gain in K.E.

    3. Total energy of the body

    4. Work done by friction

12. Bernoulli's Theorem is applicable to:

    1. Solids

    2. Plasma state

    3. Fluids

    4. Liquids