System and Surroundings
What is a system?
What you are focused on
What is kinetic energy?
Energy in motion
What is the surroundings?
Everything else but the system " so what you are not focused on"
What is potential energy
Energy due to a position " stored"
What is law of conservation of energy
Energy is transferred, not lost, and total energy never changes.
What is electrical energy?
energy of moving electrons
What is friction?
Rubbing two objects together
What is mechanical energy
potential + kinetic
What is energy?
The ability to do work
What is electromagnetic energy?
Energy that can be reflected or emitted as waves