Because in science, "theory" doesnt mean what it means in everyday language. Scientific knowledge is known as theory. For example, electrical theory, germ theory, evolutionary theory, thermal theory, etc
Photosynthesis is the process by which plants, some bacteria and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water.
I think it's Robert Hooke. I could be wrong, though:/
1. gravitational potential energy
Yes, motion energy (kinetic energy) is transformed into gravitational potential energy as the rock falls.
2..When we push a huge rock, there is no transfer of muscular energy to the stationary rock. Also, there is no loss of energy because muscular energy is transferred into heat energy, which causes our body to become hot. From the conservation of energy we know that energy can neither be created nor destroyed, it can only be transformed from one form to another.
3 When the rock starts rolling down the hill it has kinetic energy. When the rock gets to the bottom of the hill and stops, it is no longer in motion therefore it no longer has kinetic energy, the energy has been converted back into potential energy.
Potential energy is transformed to kinetic energy.
