When a car is moving it has kinetic energy. When a car is sitting on top of a hill it has potential energy. By hitting the brakes, that kinetic energy is absorbed by the brake pads via friction and converted into heat energy. The friction of the tires is also what provides for turning.
Glaciers change the surface of the land in several ways. By pushing rocks and gravel along with its encroachment a glacier leaves that material behind when it retreats. Most glaciers have water melting out of them when it gets above freezing. That water erodes the landscape forming streams and rivers.
The bottom half of a glacier behaves like a plastic while the top is brittle. Crevasses or cracks on the surface forms as a glacier descend down a mountain. Glacier types. There are two types of glaciers: Alpine glaciers-glaciers that occupy mountain valleys. Continental glaciers-glaciers that occupy land masses. Depending on the type of glaciers, they leave behind characteristic erosional features. Glacier or U-shaped valleys-glaciers carve out existing valleys and leave behind U-shaped valleys. www.geology.wisc.edu. Cirques-half bowl shaped hollow that is located high or at the head of the glacier.