* Gravitational Potential Energy: Sediments at the top of the mountain possess gravitational potential energy due to their position relative to the Earth's surface.
* Kinetic Energy: As the sediments move downhill, this potential energy is converted into kinetic energy (energy of motion).
* Friction and Work: The movement of sediments down the mountain and along the stream involves friction. This friction does work on the sediments, converting some of their kinetic energy into heat.
* Erosion and Transport: Despite some energy loss due to friction, the overall process demonstrates the conservation of energy. The initial potential energy of the sediments is transformed into kinetic energy, which drives the erosion and transport of the sediments.
Key Point: While energy is transformed and some is lost as heat due to friction, the total amount of energy in the system remains constant. This is a fundamental principle of physics.
