PPSC Physics Full Book With Answers

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PPSC Physics Full Book

Sr. # Questions Answers Choice
1 The ratio of stress to strain is called. Bulk modulus Young's modulus Modulus of elasticity Shear modulus
2 A solid object is Not elastic below the elastic limit Not elastic above the elastic lime Elastic below the elastic limit Not elastic at all
3 A structure that is intermediate between order and disorder is. glassy solids Polymeric solids Amorphous solids Crystalline solids
4 Liquids with disordered structure frozen in are an example of Amorphous solids Glassy solids Crystalline solids Polymeric molecules
5 A solid in which there is no regular arrangement of molecules. Amorphous solids Glassy solids Crystalline solids Polymerization
6 Crystalline solids are of. Short range order Long range order Intermediate range Plastics
7 The extension produced in a sample of material depends upon Nature of the material Stretching force Cross range order All of the above
8 An alternation produced in shape length or volume when a body is subjected to some external force is. Deformation Polymerization Crystallization Elasticity
9 Which of the following is mechanical property of a material. Strength Stiffness Ductility All of these
10 The proportion of crystalline to amorphous regions in a polymer depends on its Chemical composition Molecular arrangement Physical state Chemical composition and molecular arrangement
11 Artificial polymers are made by a chemicals reaction known as. Crystallization Electroplating Polymerization Polarization
12 Which of the following solids exhibits only short range order. Amorphous solids Polymeric solids Crystalline solids All of the above
13 The word amorphous means With regular structure Without structure May have regular structure Thermoplastics
14 Which type of solid have definite melting point. Crystalline solids Amorphous solids Glassy solids Polycrystalline solids
15 Amorphous solids are also called. Crystalline solids Glassy solids Polymeric solids Polymers
16 Plasma exists in Electric bulbs Tube light Energy savers Fluorescent tubes
17 Highly conducting state of matter is Conductors Plasma Semiconductors Insulators
18 Gases have Fixed shape Fixed volume Fixed shape and volume No fixed shape and volume
19 Molecules of a liquid Do not vibrate about their mean position Are rigidly held with each other Have weak attractive forces Have strong attractive forces
20 Solids have Fixed shape only Fixed volume only Fixed shape and volume No fixed shape and volume
21 Any substance that can flow is a Solid Gas only liquid only Fluid
22 Which of the substances is the lightest one. Copper Mercury Aluminium Lead
23 In which one of the following states molecules do net leavt their position. Solid Liquid Gas Plasma
24 Simple harmonic motion may be assumed as a projectio of uniform circular motion along a Diagonal hypotenuse Diameter Radius
25 Restoring force in SHM is. Centripetal Frictional Conservative Non conservative
26 The Circular motion of a particle with constant speed is. Periodic and SHM Periodic but not SHM linear and SHM Neither periodic nor SHM
27 The total energy of body executing SHM is directly proportional to. Amplitude Square of amplitude Square root of amplitude Reciprocal of amplitude
28 The angular frequency time period and frequency of a simple pendulum depends only on the. Mass and amplitude Mass and gravitational acceleration Amplitude and frequency Length and gravitational acceleration.
29 The angular frequency time period and frequency in SHM not depend upon. Mass Force constant Amplitude Restoring force
30 In simple harmonic motion we have the conservation of. K.E. P.E Total energy Electrical energy
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