work done, elasticity Flashcards
1
Q
work done equation
A
force x distance
2
Q
what is work done measured in
A
J - joules
3
Q
what happens to friction when work is done
A
-work done to overcome friction causes an increase in heat energy
4
Q
what does elastically deformed mean
A
if object returned to its original shape
5
Q
the extension of an elastic object is directly proportional to what
A
applied force
6
Q
once limit of proportionality has been exceeded:
A
- doubling force will no longer exactly double extension
- relationship becomes non linear
- force- extension graph stops being a straight line
7
Q
equation for force and what is it measured in
A
spring constant x extension
N/M
