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Forces on Bridges

QuestionAnswer
states "for every force there is an equal and opposite force" 3rd law of motion
Fnet = mass times acceleration 2nd law of motion
SI unit for force and weight Newtons
SI unit for mass kilograms
measure of the amount of matter an object has mass
downward force that is the product of the acceleration due to gravity and object's matter weight
upward force that counterbalance weight on a surface normal
force that pulls structure apart (stretching) tension
force that squeezes an object together compression
force that causes adjacent parts of the structure to slide past each other in opposite directions shearing
load on an bridge without any other objects on it dead load
load on a bridge when objects are resting or moving on it live load
on object in motion tends to stay in motion until acted on by a net force 1st law of motion
force caused by changes in temperature leading to bridge materials getting longer or shorter ; putting stress on the structure thermal expansion/contraction
forces caused by ground shaking due to an earthquake seismic force
twisting force mainly caused by the wind torsion force
anything (usually a push or pull) that can cause object to accelerate or be displaced force
pair of forces that have no effect on an object's motion balanced force pairs
pair of forces that cause object to accelerate unbalanced force pairs
the sum of all the forces acting on an object net force
illustration of all the forces acting on an object free body diagram
this must be considered when calculating the normal force on an inclined surface cos(angle) of incline
force that is a combination of tension and compression on beam bridges bending
Created by: cadetjt
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