The water contained in a geyser system gains energy from the underground material surrounding it. The water molecules gain kinetic energy and this results in an increase in the pressure of the water. Eventually the geyser erupts and expels water into the air above ground. Which of the following types of energy is the source for the initial energy gain of the water?
A)electrical
B)magnetic
C)mechanical
D)thermal

Question

Quizplus · Accepted Answer

The initial energy gain of the water in a geyser system comes from the heat of the Earth's interior, which is a form of thermal energy. This heat increases the kinetic energy of the water molecules, leading to an increase in water pressure and eventually causing the geyser to erupt.

The Water Contained in a Geyser System Gains Energy from the Underground