Help on the nature of energy.?

Question

Are these statements true, if not change them so they are.

1. Anything that causes change must have energy.

2. Energy may change from one form to another, but the total amount of energy never change.

Answer 1

1. Maybe true.  "Anything that causes change IN THE PHYSICAL REALM must have energy."

A single thought can create change in the emotional, psychological, spiritual or philosophical realm.  Does change due to a single thought require energy?  Maybe, if thought is just a bunch of electrical signals bouncing around neurons in our brains; depends how you look at it I guess.

2. True.  Another way to write it is:  "Energy can neither be created nor destroyed, but it can be transformed."

Answer 2

Albert Einstein added a wrinkle to #2.  Energy can be converted to matter (and vice versa) in the ratio E=MC^2 which is the relationship between energy (in joules), mass (in grams) and the speed of light (in metres per seconds).  The easiest way to think of it is that matter is a form of "frozen energy".  The law of conservation still applies, though, in that the total of matter and energy remains constant.  Nuclear reactions produce energy by converting minute amounts of matter into energy.

Answer 3

1. this is kinda a general statement but roughly true

2. kinda iifffy, yes i know they teach that energy just gets transferred but dont forget, you do lose some of that energy through other factors. say you bounce a ball, that ball isn't coming up to that same point, when it makes contact with that other surface yes its transferring some energy but dont forget to that there may be some minute heat produced from that which is heat loss which takes the energy/ losing energy to neither the ball or floor.

Answer 4

Both are true.