Mechanics and Properties of Matter Quiz with Answers PDF Download – Test 7

MCQ 31: In linear motion, the energy is given by 1⁄₂mv². Similarly, in rotational motion, the rotational energy is given by:

1. 1/2 × I × Ω; where I: moment of inertia of the body, Ω: angular velocity
2. 1/2 × I² × Ω; where I: moment of inertia of the body, Ω: angular velocity
3. 1/2 × I × Ω²; where I: moment of inertia of the body, Ω: angular velocity
4. 1/2 × I² × Ω²; where I: moment of inertia of the body, Ω: angular velocity

MCQ 32: Boyle's law states that:

1. pressure of a gas is inversely proportional to its volume i.e. P × V = constant
2. pressure of a gas is directly proportional to its volume i.e. P⁄V = constant
3. pressure of a gas is inversely proportional to the square of its volume i.e. P × V² = constant
4. pressure of a gas is directly proportional to the square of its volume i.e. P ⁄ V² = constant

MCQ 33: Isothermal bulk modulus is equal to:

1. Υ × P; where Υ: the ratio of the specific heat capacities of the gas, P: pressure
2. Pressure
3. The ratio of the specific heat capacities of the gas
4. Υ ⁄ P; where Υ: the ratio of the specific heat capacities of the gas, P: pressure

MCQ 34: Adiabatic bulk modulus is equal to::

1. Υ × P; where Υ: the ratio of the specific heat capacities of the gas, P: pressure
2. Pressure
3. The ratio of the specific heat capacities of the gas
4. Υ ⁄ P; where Υ: the ratio of the specific heat capacities of the gas, P: pressure

MCQ 35: Bernoulli's principle shows that, at points in a moving fluid where the potential energy change is very small:

1. the pressure is low where the velocity is low and similarly, the pressure is high where the velocity is high
2. the pressure is low where the velocity is high and conversely, the pressure is high where the velocity is low
3. pressure becomes independent of the velocity of the moving fluid
4. pressure remain independent of the speed of the stationary fluid