<span>Cathode and
anode always go together in electrochemical reactions. An example of this is
the lead battery. The lead battery contains a chemical that is involved in the
chemical reaction. The chemical reaction in the battery causes a buildup of
electrons in the anode. And because the electron buildup in the anode is full,
its only place to go is the cathode. The movement of the electrons from anode
to cathode is caused by the chemical reaction present in the battery. There will
be a movement until the chemical runs out. If the chemical runs out, the
electrons stop moving. The answer is c.</span>
As a rocket increases height and slows down, it gains more and more potential energy and loses more and more kinetic energy. Potential energy is store energy (usually determined by height), and kinetic energy increases as speed increases.
