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