What is hooke’s law?
And what is Hooke’s law equation?
The extension is proportional to the force applied provided the limit of proportionality is it exceeded.
If one spring is stretched by 1 meter when 1 newton of force is applied, how far would two springs in parallel stretch under 1 newton of force?
And what equation can be used for this?
Half a metre
If one spring is stretched by 1 meter when 1 newton of force is applied, how far would two springs attaches end to end stretch under 1 newton of force?
What is the energy conversion of a mass stretching a spring?
Gravitational potential to storage potential
The area under a force extension graph is what?
Equal to the potential energy storage in the object extending
What is the symbol for stress and strain?
What is the letter for Young’s modulus?
Something that can withstand high stress but doesn’t strain much before breaking is what?
A material that can undergo large amounts of strain but little stress is what?
A material that stress and strains evenly (ish) until it reaches a region of plastic deformation where it strains until it breaks
When stretching a rubber band what does the stress strain graph look like when loading and unloading with masses?
When loading the gradient starts larger, gets smaller the gets larger again.
When unloading a similar path is taken in reverse slighting below the loading graph, but ending and starting at the same points
What does the area enclosed in a hysteresis loop equal to?
The energy transferred per unit volume from elastic potential is heat energy
A material that has a large plastic region in a stress strain graph
Does not show plastic deformation and deforms little under high stress