Force and Elasticity Flashcards
1
Q
What does elastic mean
A
elastic materials return to their original shape and size after being stretched or squashed
2
Q
What does inelastic mean
A
inelastic materials do not return to their original shape after being stretched or squashed
3
Q
What is Hooke’s law?
A
for elastic changes, the extension of an object is directionally proportional to the force applied
4
Q
What does work mean?
A
Energy transferred by a force. Work done = force x distance moved in the direction of the force
5
Q
What does elastic potential energy mean
A
Energy stored in squashed, stretched or twisted materials
6
Q
What does proportional mean
A
When two quantities have the same ratio or relative size. For example, current is proportional to voltage if the current doubles when the voltage doubles
