30 points : d 1.)energy that comes from the internal motion of atoms and molecules is called chemical energy electrical energy thermal energy potential energy 2.)in any energy conversion, some of the energy is lost to the environment as electrical energy potential energy sound energy thermal energy 3.)based on the principles of convection, conduction and thermal radiation, which scenario(s) below is/are most similar to heating a tin can of water using a bunsen? the sun warming up the roof on a house. cold water sinking in a pot of water being warmed up on the stove warm air rising in a room where the air is moving feeling a metal wire get warmer as you roast a marshmallow over a fire. 2 only. 2 and 3 only. all of these choices. 2, 3, and 4 only.

1)Chemical Energy

2) Potential Energy

3) 2 and 3 only

Energy that comes from the internal motion of atoms and molecules is called chemical energy

When atoms inside an object vibrate or they move then give up their energy. This energy is given as the chemical energy. Chemical energy is energy stored in the bonds of atoms and molecules. When these atoms or molecules move they are said to be ions as well and when their bonds break they are dissociated in their respective ions.  

In any energy conversion, some of the energy is lost to the environment as thermal energy

Thermal energy is the energy produced from heat. For example the burning of fossil fuels in the environment produces heat ot thermal energy as well. Similarly the burning of gasoline inside automobiles engines also produce heat energy. So we can say that In any energy conversion, some of the energy is lost to the environment as  heat or thermal energy.

The correct options are

The scenario given above is the phenomenon of convection which is defined as the process in which heat i transferred from one object to another object by direct contact of those two objects. So if we see the question we are given with convection process hence a metal wire get warmer as we roast a marshmallow over a fire. Or cold water sinking in a pot of water being warmed up on the stove.

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year