CHM1025C Module One: Sample Exam Homework Answers
Part
E1: Energy Transformations 5 points
Identify two forms of energy
that are involved in each of the following energy conversions:
1.
relating to a fossil fuel plant:
a. Burning coal converts water to
steam:
Chemical
energy to Heat Energy
b. A turbine spins and drives an
electrical generator:
Mechanical energy is convert to electrical
energy
2.
Solar Hot Water Energy
Panels:
Light Energy
(Radiant) to Heat Energy
3.
Photovoltaic
Solar Energy Panels:
Light Energy (Radiant) to Electrical Energy
4.
Radioactive
emissions vaporize water into steam
Nuclear Energy to Heat
Energy
5.
Identify two
forms of energy that are involved in each of the following devices:
a. Flashlight: chemical
and light
b. Solar Calculator
Light and Electrical
c. Lead-acid battery
Chemical and Electrical
6.
Classify the
following energy sources as renewable and nonrenewable:
a. Biomass renewable f. Hydropower renewable
b. Petroleum nonrenewable g. Coal nonrenewable
c. Geothermal renewable h.
natural gas nonrenewable
d. Wind renewable i. solar renewable
e.
Uranium nonrenewable j. propane nonrenewable