No, you need the language to have the precision to talk about the ideas sensibly.<quoted text>
Not really, Poly. You only need the language to read your Holy Mathematical Scriptures.
Velocity is also 'physical'. But it is calculated by dividing how far you move by how long it took. More accurately, velocity is the rate of change of position. And that is a mathematical relation. Acceleration is also 'physical', but it is calculated as the rate of change of velocity.Energy is a something "physical". All you are presenting are math equations. Energy is a fuel.
Energy is physical, but it is calculated by a variety of means, kinetic energy as 1/2*m*v^2 (in Newtonian physics), potential energy as the inverse gradient of the acting force, etc. If you don't have the mathematics, you can't see what is happening.
No, heat is generated when there is friction, which makes the molecules move more randomly. But a planet moving in orbit is also a 'load' acted upon by a 'force' that does not generate heat. And that planet has a kinetic and potential energy that add up to be conserved.In the real physical world heat is generated when a load is placed upon a force. What has "energy", but has zero heat?