Thanks once again Studiot for clarifying things for me. Of course, energy is preserved, so the energy I 'put in' trying to move a heavy object without any displacement, getting turned into heat energy makes sense.
As for the scalar bit, yes I see why it's a scalar (as opposed to force which...
Much clearer Studiot, thank you very much. Just wondering, what happens when I apply a force but there is no displacement (for talking sake, let's say I try to push a truck). Surely I'm using up energy but the integral tells me that the energy (area under curve) is 0. Is there a very very minute...
So...just like a vector where the magnitude can never actually be negative but can only be considered negative depending on the direction with respect to another vector in the opposite direction?
I've just started learning about vectors...
Thanks studiot for those examples. The graph that I drew was similar so atleast we are on the same page. However, my confusion regarding the over bit still remains. Yes, I know over means division and that's precisely what's confusing me. Please refer to an earlier post from jonspalding.
So...
Wow, thanks guys!
I guess Force is another term that I've used loosely just like the term 'Time' (and I know there is a thread in this category entitled 'What is time?'). Unlike energy however, I can atleast comprehend force and it's not as un-settling. Well, here's my attempt at explaining...
Hi,
I'm in high school and have been given an assignment regarding heat, which is a term I don't fully understand mainly
because any definition I have come across makes use of the term Energy. This leads me to my question:
What is energy?
I know of the existence of the thread 'What is...