Alternative energy
Environmental Technologist
Apply theory and principles of environmental engineering to modify, test, and operate equipment and devices used in the prevention, control, and remediation of environmental problems, including waste treatment and site remediation, under the direction of engineering staff or scientist.
Over 2,300 years ago, a Greek philosopher named ______ first used the term "physics" to describe his study of collecting and classifying everything in the "physical" world.
Aristotle
Biotechnologist
Assist biological and medical scientists in laboratories. Set up, operate, and maintain laboratory instruments and equipment, monitor experiments, make observations, and calculate and record results. May analyze organic substances, such as blood, food, and drugs.
Physicist
Conduct research into physical phenomena, develop theories on the basis of observation and experiments, and devise methods to apply physical laws and theories.
Nuclear Scientists
Conduct research on nuclear engineering projects or apply principles and theory of nuclear science to problems concerned with release, control, and use of nuclear energy and nuclear waste disposal.
chemical engineer
Design chemical plant equipment and devise processes for manufacturing chemicals and products, such as gasoline, synthetic rubber, plastics, detergents, cement, paper, and pulp, by applying principles and technology of chemistry, physics, and engineering.
Design Engineer
Develop and design manufactured products, such as cars, home appliances, and children's toys
An external energy source must be applied for electrons to remain separated from their positively charged atoms.
False
This solar device converts the sun's energy into electricity.
Photovoltaic cell
_____ energy is the energy of position.
Potential
_____ is the rate of energy expended or generated over a specified amount of time.
Power
Electrical engineer
Research, design, develop, test, or supervise the manufacturing and installation of electrical equipment, components, or systems for commercial, industrial, military, or scientific use.
Geologists
Study the composition, structure, and other physical aspects of the Earth. May use geological, physics, and mathematics knowledge in exploration for oil, gas, minerals, or underground water; or in waste disposal, land reclamation, or other environmental problems.
Energy is the amount of force needed to do work.
True
Kinetic energy is the energy of motion
True
The migration of electrons from the P-layer leaves that layer with fewer electrons and, therefore, a highly positive charge.
True
Thermal energy that is stored in the world's oceans comes directly from the sun.
True
____ is accomplished when energy is used to move an object.
Work
In an electron-generating system, ________________ causes the separation of electrons from their atoms, creating positively charged atoms and free electrons.
an applied source of energy (force)
The chemical energy stored in ______________ was originally the sun's energy stored in prehistoric plants.
coal and petroleum
When a source of energy is applied to materials that conduct electricity, _____ are freed from their orbits.
electrons
The force that keeps atoms from flying apart is called ____.
energy
In a photovoltaic cell, the upper P-layer is usually treated or "doped" with a phosphorous material.
false
Kinetic energy is the energy of ______.
motion
The P-type layer of a PV cell has a _____ charge.
negative
The lower N-layer of the PV cell is "doped" with a ______ material.
phosphorus
The energy that ___________ carry is converted to some other form of energy in a circuit, such as heat, light, electromagnetic force, or radiation.
positive atoms
The atoms that lose electrons are left with "holes" where the electrons had been. These atoms then become _____ charged.
positively
A book resting on a table has _____ energy because someone lifted it and put it onto the table.
potential
All energy comes in two basic forms: kinetic energy and _____ energy.
potential
Most forms of alternative energy are actually forms of ______ energy.
solar
Thermal energy that is stored in the world's oceans comes directly from the sun.
true