forces - work done and forces/elasticity Flashcards
1
Q
in science, what does theorem work mean
A
whenever a force is used to move an object, energy is transferred
2
Q
what is a key point to do with the distance when talking about work done
A
the distance has to be in the line of action of the force
3
Q
what is work done measured in
A
joule
4
Q
examples of elastic materials
A
slinky, rubber bands, rubber gloves, eraser, playground surface and a tennis ball
5
Q
what is a key fact about elastic materials
A
they will always return back to their original length or shape if we take away the force acting on them
6
Q
what dos scientists call this type of change
A
elastic deformation
7
Q
how can we change an objects length or shape
A
we have to apply more then 1 force
8
Q
what’s an example of an inelastic material
A
certain polymers
9
Q
A
