Are mechanical energy and work the same thing?

Answer 1

A1 Mechanical energy is energy produce from raw materials which are burnt, such as oil, work is the use of energy ehich may be mechanical, or physical, which means the use of foods to produce energy which is then used for work, so no, they are not the same thing A2 Energy and work have the same units, ie Joules in the SI system, and the dimensions are Force x Distance, or Newtons x Meters. I always think of work as the use of energy. Thus for example you release energy from a fuel such as gasoline by burning it, and use this energy to do work, ie propelling a car.