Bending and stretching - SP15 Flashcards
What is required to strech, bend of compress an object?
more than one force
What does elastic mean?
the object will return to it’s original shape when the forces are removed
what does inelastic mean?
they will keep their new shape after forces have been removed
how are springs and example of variable elasticiity?
they can be made into springs that can accept pressure, limited stretching etc - but when forces become too big, they are permenantly deformed
what is the extension of a spring?
the change in length when forces are applied
what 2 factors have a linear relationship in a spring? when does this relationship change into non linear?
force + length - changes when the force becomes too big and spring can stetch no more
what 2 factors are directly proportional when a spring extends?
extension and force
