Integrated Physics and Chemistry TEKS Correlations
(6) Science concepts. The student knows the impact of energy transformations in
everyday life. The student is expected to:
94.
The primary source of energy for the production of electricity illustrated above is 
A.
B.
C.
D.
95.
(A)describe the law of conservation of energy;
radiation from the sun
movement of air
breaking of chemical bonds
decomposition of biomass
Most cars are about 20% efficient. Which of the following may increase the efficiency of most cars?
A.
B.
C.
D.
Using the heat from the engine to power the air conditioner
Designing an engine to more completely combust gasoline
Designing tires that create more friction with the road
Making the car body from a denser material
Charles A. Dana Center
Science TEKS Toolkit
www.sciencetekstoolkit.org
96.
Under normal conditions, a car’s engine is about 20% efficient. An advertisement claims that a few drops of
“Gofast’s” gasoline additive will increase the engine efficiency to 60%. Which scientific law can be used to
challenge this claim?
A.
B.
C.
D.
Law of inertia
Law of conservation of mass
Law of gravity
Law of conservation of energy
Students need to be aware of how the law of conservation of energy applies to their life. The
items on fuel efficiency (95 and 96) were designed to focus on a concern that all our students
are aware of.
Item 96 was inspired by an item from Region VII Education Service Center’s TEKS Assessment Generator test bank. Used with permission.
Charles A. Dana Center
Science TEKS Toolkit
www.sciencetekstoolkit.org