a) gravitational potential energy, b) kinetic energy. I believe elastic energy would also be considered mechanical energy.
;p;
Windmill and sailboats
t
No
A ball going down a hill is energy in motion. You walking is also energy in motion. A car moving is another example of energy in motion.
;p;
Windmill and sailboats
t
rubbing of two wood
Hydroelectric power and solar energy.
No
suck it
burning of coal,burning of petrol
A ball going down a hill is energy in motion. You walking is also energy in motion. A car moving is another example of energy in motion.
the sum of the kinetic & potential energy of the particles in an object due to the random motion
the sun and another example i don't know
Survival and replicating