FORCES AND STRUCTURES
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FORCES AND STRUCTURES
Force - the influence that tends to change the speed and direction of a stationary or a moving body.
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FORCES AND STRUCTURESThe effect of a force depends upon its:
MAGNITUDE Measure of how strong a force is Newtons (N)
DIRECTION Ex. Push vs Pull
POINT & PLANE of Application Where and how a force is applied Ex. High vs Low
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TENSION, COMPRESSION,
TORSION AND SHEAR
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TENSION – pulling or stretching force
COMPRESSION- pushing or squeezing force
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TENSION
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COMPRESSION
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TORSION – twisting force – applying opposite rotational forces
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SHEAR- two parallel opposite forces applied at same point- causes tearing
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Draw and label a diagram showing the forces acting on and within a flagpole and its flag in a strong wind.
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Strut - A member of structure that is subjected to compression.
Tie - A member of structure that is subjected to tension.
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