PPSC Physics Chapter 1 MECHANICS With Answers

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PPSC Physics Chapter 1 MECHANICS

Sr. # Questions Answers Choice
1 The SI unit of torque is kg ms-2 kg m2s-2 kg ms-1 kg m2 s-3
2 The dimensions of force are. [MLT-2] [MLT-1] [M,-1T-2] [M-2T-2]
3 Which of the following SI units is not named after any physicist. Hertz Joule Volt Candala
4 Which one of the following pairs does not have the same dimensions. Force and weigfht Pressure and stress Capacitance and resistance Energy and work
5 Which one of the following does not have the same dimenstions. Energy ,work, heat Pressure, stress, Young's modulus Voltage, electromotive force, potential difference Electric flux, electric field, electric dipole moment
6 The pascal is not the SI derived unit of. Pressure Stress work Tensile strength
7 Which one of the following is not a dimensionless quantity. Radian pi Decibel Force
8 Which of the following is not a unit of plane angle. Degree Radian Gradian Steradian
9 Candela is the SI base unit of. illuminance Luminous flux Luminous intensity Radiant energy
10 Which of the following is not SI base unit. kilogram Ampere Coulomb Mole
11 MT-2 is the dimensionless formula of. Moment of iniertia Viscosity surface tension Angular acceleration
12 What are the dimensions of coefficient of velocity of [MLT-1] [ML-1T-1] [ML-2T-1] [MLT-2]
13 The dimensions of moment of inertia are [ML2] [MLT-1] [ML2T-1] [ML-1T-2]
14 The dimensions of torque are. [MLT-2] [ML-1T-1] [ML2T-2] [ML-2]
15 The dimensions of universal gravitational constant G are. [MLT-2] [ML -2T-2] [M-1L2T-2] [ML-1T-1]
16 One light year is equal to. 9.46 x 10<sup>15</sup> cm 9.46 x 10<sup>15</sup> m 9.46 x 10<sup>15</sup> km 7.88 x 10<sup>14</sup> m
17 Light year is a unit of Light Velocity Time Distance
18 The SI unit of solid angle is Degree Radian Steradian Candala
19 The fundamental quantities which form the base of the SI are. mass, energy and time mass, force and time mass, length and time mass , length and time
20 Which of the following pair of physical quantities have the same dimension. Momentum and pressure Energy and work Linear and angular momentum Force and surface tenstion
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