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WorksheetsReview EMAT Q1- Structure of Atoms, Mechanical Properties
Total questions: 33
Worksheet time: 2hrs 39mins
What is the smallest unit of matter?
Molecule
Atom
Particle
Cell
What is the study of the arrangement of atoms in materials called?
Metallurgy
Material science
Crystallography
Quantum mechanics
What is the graphical representation of the relationship between stress and strain?
Stress-strain curve
Force diagram
Tension graph
Deformation chart
What law describes the linear relationship between stress and strain within the elastic limit?
Newton's Law
Hooke's Law
Ohm's Law
Boyle's Law
Which of the following is NOT a mechanical property of a material?
Hardness
Density
Elasticity
Ductility
Which of the following is a mechanical property of a material?
Melting point
Conductivity
Tensile strength
Chemical reactivity
What is the measure of a material's resistance to indentation or scratching?
Hardness
Toughness
Elasticity
Ductility
What is the measure of a material's ability to resist deformation and under tensile stress and regain original shape upon removal of load?
Hardness
Toughness
Elasticity
Ductility
What is atomic mass?
Protons + neutrons
Protons + electrons
Neutrons + electrons
Neutrons + quarks
What are the subatomic particles?
Protons, Electrons, Neutrons
Molecules, and atoms
Electrons, Protons, Nucleus
Nucleus, and Electrons
Subatomic particles with a negative charge
Electrons
Neutrons
Protons
Quarks
The strength of a material is how much it can be pulled apart or pressed together without _____________________.
falling
floating
sinking
breaking
Hardness of a material is how easily a material can be scratched or _____________________.
dented
broken
pulled
pushed
Flexibility is how much a material can be _______________ without breaking.
broken
scratched
bent
dented
In general these materials have high electrical and thermal conductivity, can be ductile and thus allows products to be bent into shape and have high stiffness and strength.
Polymers & Elastomers
Metals
Ceramics
Composites
Hardness, toughness and ductility belong to which property class of materials?
Physical
Mechanical
Chemical
Thermal
The measure of the maximum amount of crushing stress a material can endure before failure is called:
Compressive strength
Tensile strength
Brittleness
Hardness
The maximum amount of pull a material will withstand before failure is called:
Compressive strength
Tensile strength
Brittleness
Hardness
The property of a material to be permanently deformed without breaking is called:
Brittleness
Ductility
Toughness
Hardness
The property of a material that permits no permanent deformation before fracturing is called:
Brittleness
Shear Strength
Toughness
Malleability
The ability of a material to be hammered or rolled in thin sheets is called
Brittleness
Shear Strength
Toughness
Malleability
The property of a material to be able to withstand shock or impact is called:
Brittleness
Shear Strength
Toughness
Malleability
The ability of a material to return to its original shape after the force applied has been removed is called
Brittleness
Elasticity
Toughness
Hardness
The ability of a material to withstand forces which tend to cause sliding of one part of the material over the other is called
Shear Strength
Tensile Strength
Compressive Strength
Elasticity
Stress is a ratio of ______.
Force to Distance
Force to Area
Distance to Force
Area to Force
Strain is defined as __________.
Original dimension per unit change in dimension
Change in dimension per unit original dimension
Original dimension
Change in dimension
Hooke's Law states that within elastic limit _________.
stress α strain
starin α stress
constant α stress
constant α strain
