A. Give an example of the conversion of light energy to electrical energy. b. Give an example of chemical energy converting to heat energy.

c. Give an example of mechanical energy converting to heat energy.

Explanation:

a) photovoltaic cell is a semiconductor device and it converts light energy to electrical energy

b) burning of coal converts chemical energy to heat energy

c) rubbing of both hands against each other converts mechanical to heat energy

a. solar cells

b.coal,wood,petroleum

c.rubbing ours palms

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

i believe the answer is electric potential.

explanation: