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Tension is the effect of pulling at the ends of a part or member of a structure. Take your Blu-tak or plasticine again. Roll it out and gently pull the ends. This time you will see that it becomes thinner in the middle and eventually breaks

tension - stretching

ties under tension

A tug of war creates tension in the rope between the teams. A chain which suspends a light from a ceiling is in tension. The parts of a structure which are in tension have to resist this kind of change. Make a list of things which you think are in tension

ballbutton.gif (367 bytes) Forces - Gravity ballbutton.gif (367 bytes) Forces - Compression
ballbutton.gif (367 bytes) Forces - Load ballbutton.gif (367 bytes) Forces - Tension
ballbutton.gif (367 bytes) Forces - Bending ballbutton.gif (367 bytes) Forces - Twisting

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Shapes in structures Forces - Twisting Forces - Bending Forces - Tension Forces - Compression Forces - Load Forces - Gravity Technical Menu Introduction