Elasticity of Materials Lowersixth Science Physics

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Quiz on elasticity concepts for Lower Sixth Science

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Elasticity of Materials Lowersixth Science Physics


Froggy Jumps Elasticity of Materials Lowersixth Science PhysicsOnline version Quiz on elasticity concepts for Lower Sixth Science by YAKILI LMS 1 What does Hooke's Law relate in solids? a Stress to strain in the elastic region b Mass to acceleration c Stress to velocity 2 Elastic deformation is reversible when? a Stress increases b Temperature rises drastically c Stress is removed within the elastic limit 3 What is the unit of stress? a Joule (J) b Newton (N) c Pascal (Pa) 4 What is tensile stress? a Force per unit area pushing together b Energy per unit volume c Force per unit area pulling apart 5 What is tensile strain? a Volume change b Perimeter change c Extension per original length 6 Young's modulus is a measure of? a Toughness b Density c Stiffness of a material 7 Hooke's law is applicable up to which limit? a Elastic limit b Yield point c Fracture point 8 What happens beyond the elastic limit? a Elastic rebound b No deformation c Plastic deformation occurs 9 Which property is unaffected by time under constant load? a Hardness b Elasticity c Ductility 10 What is the gradient of a Stress–Strain curve in the elastic region? a Shear modulus b Bulk modulus c Young's modulus 11 What type of curve appears for a ductile metal under tensile test? a Perfect straight line b Immediate fracture c Linear then non-linear before necking 12 What is the zone called just before fracture in a ductile material? a Necking region b Yield region c Elastic region 13 Which factor affects elasticity? a Temperature b Color c Light intensity 14 Another factor affecting elasticity is? a Rate of loading b Liquid content c Height 15 What is thermal effect on elasticity generally? a Increases molecular mobility reducing stiffness b No effect at all c Increases stiffness without limit 16 Which is a property of a highly elastic material? a Stays permanently deformed b Returns to original length after unloading c Melts under stress 17 What is a common elastic material used in wires? a Metallic wire like steel b Cork c Glass fiber 18 Deformation of solids includes? a Only plastic deformation b Elastic and plastic deformation c Only elastic deformation 19 The curvature on a stress–strain graph in the plastic region indicates? a Elastic recovery b No deformation c Permanent deformation 20 What does a steep slope on the elastic portion indicate? a High Young's modulus b High thermal conductivity c Low density 21 What is the relation for tensile stress? a Force/initial cross-sectional area b Energy/length c Mass/volume 22 What is the relation for tensile strain? a Extension/original length b Extension/current length c Distance/width 23 Which factor can loosen elasticity at high temperature? a Increased density b Increased atomic vibrations c Decreased mass 24 What is the major purpose of elasticity in materials? a Absorb water b Withstand temporary deformations and recover c Always deform permanently 25 Which law links force, extension, and stiffness? a Hooke's Law b Newton's Law c Boyle's Law 26 What is the unit of strain? a Joule b Dimensionless c Pascal 27 Which is NOT a factor affecting elasticity? a Temperature b Color of the material c Rate of loading 28 What does the area under the stress–strain curve represent in the elastic region? a Work done per volume b Energy lost as heat c Fracture energy 29 Which property is constant in Hooke's law for a given material? a Density b Thermal conductivity c Young's modulus 30 In a metallic wire, what happens to stress as strain increases within elastic limit? a Stress increases proportionally b Stress remains zero c Stress decreases 31 What does necking indicate? a Onset of plastic deformation b Elastic behavior end c Failure without deformation 32 Which of these affects elasticity through microstructure changes? a Alloy composition b Color c Texture 33 Which term best describes the maximum stress before plastic deformation begins? a Yield strength b Fracture strength c Tensile strength 34 Tensile strain is the extension divided by? a Original length b Cross-sectional area c Final length 35 What describes a material that returns to shape after load removal? a Elastic b Plastic c Viscoelastic 36 What is the effect of increasing cross-sectional area on stress? a Stress decreases for the same force b No change c Stress increases 37 Which curve segment shows elastic behavior only? a Necking region b Initial linear region c Yield plateau 38 Which term describes the capacity to absorb energy without permanent damage? a Brittleness b Hardness c Toughness 39 Which factor reduces elasticity at high rates of loading? a Inertia effects b Color change c Temperature drop 40 What is the ratio of stress to strain in the elastic region? a Bulk modulus b Young's modulus c Shear modulus 41 What happens to the wire's length when a tensile load is removed in elastic region? a Remains elongated b Shortens further c Returns to original length 42 Which parameter is not directly in Hooke's law for solids? a Temperature b Force c Area 43 Which factor can cause material to become more ductile but less stiff? a Polishing b Painting c Alloying 44 What does a direct proportionality in stress-strain indicate? a Damping b Elastic behavior c Plastic behavior 45 Which property links to stiffness per unit area in bending as well? a Viscosity b Modulus (Young's) c Density 46 Which is true about a metallic wire under tension in elastic range? a force is constant b extension is proportional to force c extension is constant 47 Which curve region shows irreversible deformation? a Necking region only b Elastic region c Plastic region 48 What is the primary concern in elasticity of solids? a Color preservation b Thermal expansion alone c Prevent permanent deformation 49 Which factor affects elasticity through impurity scattering? a Texture b Taste c Material purity 50 Which term describes the limit before permanent shape change? a Elastic limit b Plastic limit c Fracture limit

Elasticity of Materials Lowersixth Science Physics

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Elasticity of Materials Lowersixth Science PhysicsOnline version

by YAKILI LMS

What does Hooke's Law relate in solids?

Elastic deformation is reversible when?

What is the unit of stress?

What is tensile stress?

What is tensile strain?

Young's modulus is a measure of?

Hooke's law is applicable up to which limit?

What happens beyond the elastic limit?

Which property is unaffected by time under constant load?

What is the gradient of a Stress–Strain curve in the elastic region?

What type of curve appears for a ductile metal under tensile test?

What is the zone called just before fracture in a ductile material?

Which factor affects elasticity?

Another factor affecting elasticity is?

What is thermal effect on elasticity generally?

Which is a property of a highly elastic material?

What is a common elastic material used in wires?

Deformation of solids includes?

The curvature on a stress–strain graph in the plastic region indicates?

What does a steep slope on the elastic portion indicate?

What is the relation for tensile stress?

What is the relation for tensile strain?

Which factor can loosen elasticity at high temperature?

What is the major purpose of elasticity in materials?

Which law links force, extension, and stiffness?

What is the unit of strain?

Which is NOT a factor affecting elasticity?

What does the area under the stress–strain curve represent in the elastic region?

Which property is constant in Hooke's law for a given material?

In a metallic wire, what happens to stress as strain increases within elastic limit?

What does necking indicate?

Which of these affects elasticity through microstructure changes?

Which term best describes the maximum stress before plastic deformation begins?

Tensile strain is the extension divided by?

What describes a material that returns to shape after load removal?

What is the effect of increasing cross-sectional area on stress?

Which curve segment shows elastic behavior only?

Which term describes the capacity to absorb energy without permanent damage?

Which factor reduces elasticity at high rates of loading?

What is the ratio of stress to strain in the elastic region?

What happens to the wire's length when a tensile load is removed in elastic region?

Which parameter is not directly in Hooke's law for solids?

Which factor can cause material to become more ductile but less stiff?

What does a direct proportionality in stress-strain indicate?

Which property links to stiffness per unit area in bending as well?

Which is true about a metallic wire under tension in elastic range?

Which curve region shows irreversible deformation?

What is the primary concern in elasticity of solids?

Which factor affects elasticity through impurity scattering?

Which term describes the limit before permanent shape change?