PPSC Physics Chapter 2 Structural Properties of Matter With Answers

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PPSC Physics Chapter 2 Structural Properties of Matter

Sr. # Questions Answers Choice
1 The nib of fountain pan is split of convey ink down the nib by the phenomenon of. Adhesion Cohesion Osmosis Capillary
2 The pressure change in a confined incompressible fluid is transmitted equally in all directions throughout the fluid and to the walls of the container This is. Archimedes principle Kirchhoff's law Pascal's law Ampere's law
3 A bodybuilders uses a chest expander with five springs it takes a force of 20 N to Pallone spring out by 15 cm how much force will be needed to extend the expander by 15 cm. 50 N 75 N 150 N 1000 N
4 If you float in water with just your nose out the average density of your body must be Same as that of water Greater than that of water Less than that of water Zero
5 Soap cleans the dirty clothes because. Its chemical constituents are changed Itr increases the surface tension of its solution with water It increases the surface tension of its solution with water It is less dense than that of water
6 Viscosity will be maximum when Water is at 20 <sup>o</sup>C Honey is at 20 <sup>o</sup>C Water is at 100 <sup>o</sup>C Milk is at 100 <sup>o</sup>C
7 At which temperature surface tension of liquid will be maximum 0 <sup>o</sup>C 20 <sup>o</sup>C 30 <sup>o</sup>C 100 <sup>o</sup>C
8 What is generated when air moves an air foil. Thrust Lift Drag Turbulence
9 Which force pushes up a body in fluid Thrust Lift buoyant Pressure
10 The force that moves a rocket or a plane forward is called. Lift drag Thrust Turbulence
11 Fluid mechanics is the study of how fluid move and the other ting involved is Energy Velocity Forces Position
12 Which of the following has maximum viscosity. Oxygen Mercury Water Glycerine
13 The viscosity of an ideal fluid is Infinity Unity Zero 0.5
14 Powder clings to the face due to Compression Capillary action Cohesion Adhesion
15 Surface tension of a liquid may be defined as Heat energy per unit area P.E. per unit area surface energy per unit area K.E. per unit area
16 A liquid surface tend to contract this phenomenon is due to Viscosity Diffusion Density surface tension
17 Which of the following is more viscous Air Honey Water Milk
18 Viscosity in fluid refers to The density of a fluid the compressibility of a fluid Tangential force exerted on solid surface by the flowing fluid Normal forces exerted on solid surace by the following fluid
19 A cube with sides 2 cm long is made from a material of density 8 g cm -3 What is the density of the block is. 0.2 g cm-3 0.5 g cm-2 2 g cm-3 5 g cm-3
20 The lowest stress at which strain increases in stress in called. elastic limit Plastic limit Yield point Bulk strength
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