From 30dfa69b1a786b61624420daa4f2383fd1b5a21e Mon Sep 17 00:00:00 2001 From: eggy Date: Mon, 16 Nov 2020 11:14:27 -0500 Subject: [PATCH] phys: remove redundant closed system description --- docs/sph3u7.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/sph3u7.md b/docs/sph3u7.md index 0dd7594..004ef16 100644 --- a/docs/sph3u7.md +++ b/docs/sph3u7.md @@ -465,7 +465,7 @@ $$\Delta E_e = \frac{1}{2}k \Delta x^2$$ ### Conservation of energy -The law of conservation of energy states that mechanical energy (the total kinetic and potential energies) in a **closed system** remains constant unless any dissipative forces (such as friction) are present. Therefore, the net energy initially must be the same in the end. +The law of conservation of energy states that mechanical energy (the total kinetic and potential energies) in a **closed system** remains constant. Therefore, the net energy initially must be the same in the end. $$\Sigma E_i = \Sigma E_f$$ The types of energy involved may have varying values as long as their sum is fixed. **Work** determines how energy is distributed among the types of energy.