Flashcards
Hookes Law
Cards in this deck (10)
- 1What is Hooke's Law?When extension of a spring is directpy proportional to the force applied up to the limit of proportionality (F=k x e)
- 2What is the equation of spring constant?Force / change in length
- 3Hooke's law applies for both extension and....Compression
- 4The gradient of a force-extension graph = ....Force per metre (how much force required to stretch 1 metre) aka spring constant
- 5Define force constant.Amount of force required for an extension
- 6If we know the force constant for a single spring, how would we find it for 2 springs in parallel?Multiply it by 2
- 7If we know the force constant for a single spring, how would we find it for 2 springs in series?Half it
- 8What is the unit for force constant?Nm^-1
- 9If we have n springs in parallel, how do we work out the total force constant?kT = k1 + k2 + kn .....
- 10If we have n springs in series, how do we work out the total force constant?1/kT = 1/k1 + 1/k2 + 1/kn ....
(e.g. 1/24 + 1/24 = 1/12 , 1/(1/12) = 12Nm-1