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G-12 Phys , Ch-2
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The ratio of shear stress and shear strain is called ______.
shear modulus
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Torque on the body caused by its weight; it occurs when the center of gravity of the body is not located on the axis of rotation is ____.
gravitational torque
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The property of a solid material that allows it to restore its shape after an external load is removed is called ____.
elasticity
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The material's highest limit before the material's plastic deformation can occur is _____ limit.
elastic
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A ______ is a diagram showing the magnitude and diirection of all the forces acting on a chosen body.
free-body diagram
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A _______ is a solid body in which deformation is neglected.
rigid body
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The static equilibrium is no ______ and _____ motion.
linear , rotational
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First equilibrium conditions, the sum of the forces acting on the rigid body is _____.
zero
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The torque is positive when the torque of a force causes _____ rotation about the axis of rotation.
counterclockwise
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_____ modulus is very important for medic and scientist.
Young's
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______ deformation is beyond the elastic limit, materials do not obey Hooke's law.
Plastic
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The _______ is defined as the state of balance in a system.
equilibrium
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_____ is a measure of a material's rigidity or stiffness.
Elastic modulus
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The SI unit of stress is ______.
Pa (pascal)
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A change in shape due to the application of a force is called ______.
deformation
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The applied force per unit cross sectional area of a material that describes the magnitude of forces that cause deformation is _____.
stress
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The ratio of increase in length to the original length is called _____.
tensile strain
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The ratio of tensile stress and tensile strain is defined as ______.
Young's modulus
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Point where the weight vector is attached is _____.
center of gravity
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The amount of load required to cause plastic deformation is called the _______.
plastic limit stress (PLS)
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