8th Grade Science
Sample Assessment Items S8P2a,c.
When a hair dryer is being used, one of the energy transformations that takes place is ____.
A. chemical to electrical
B. electrical to chemical
C. electrical to mechanical*
D. mechanical to electrical
When electrical energy is “used” by an electric light, what really happens to the energy?
A. It disappears.
B. It changes to matter.
C. It stops at the electric light.
D. It is given off as other forms of energy.*
In the simple act of lighting a match, chemical energy stored in the match head is
transformed into heat and light. What is true about this energy transformation?
A. Most of the energy is lost when the match is struck.
B. New energy in the form of light and heat is created when the match is struck.
C. All of the potential chemical energy is transformed into heat and light energy.*
D. Some of the chemical energy is transformed into heat and light and the rest is converted
into matter.
Predict the energy transformation that occurs when Carson sands a piece of wood with
sandpaper.
A. chemical energy to heat energy
B. heat energy to mechanical energy
C. mechanical energy to heat energy*
D. mechanical energy to chemical energy
On a cold, winter day, Sheena rubs her hands together. Stored chemical energy is
transformed into mechanical energy. Due to the Law of Conservation of Energy some of the
energy is also transformed into ____.
A. heat energy*
B. light energy
C. solar energy
D. kinetic energy
8th Grade Science
Sample Assessment Items S8P2a,c.
The stored energy in a battery can BEST be described as:
A. kinetic
B. nuclear
C. thermal
D. chemical*
Energy appears in many forms. What form of energy is lightning?
A. sound energy
B. magnetic energy
C. electrical energy*
D. mechanical energy
Geothermal energy is not a common energy source in Georgia home because _____.
A. there are few surface hot springs*
B. Georgia is too warm in the summer
C. it is regulated too much by the government
D. it causes thermal pollution of lakes and rivers
All of the following are forms of energy EXCEPT:
A. heat
B. light
C. friction*
D. electrical
Light is an example of which type of energy?
A. nuclear
B. chemical
C. gravitational
D. electromagnetic*
8th Grade Science
Sample Assessment Items S8P2a,c.
To pull up a bucket of water from a well, George pulled hard on a handle to wind up a rope.
Which kind of energy was George applying to the handle?
A. chemical energy
B. frictional energy
C. potential energy
D. mechanical energy*
Sound, mechanical, heat, and electrical energy all involve the movement of particles in some
way but only one involves the movement of charged particles.
Which type of energy involves the movement of charged particles?
A. heat
B. sound
C. electrical*
D. mechanical
Gasoline, wood, water behind a dam, and a boulder on the edge of a cliff all represent some
form of potential energy. What form of potential energy do gasoline and wood have in
common?
A. heat
B. light
C. chemical*
D. mechanical
______ energy is produced when a force causes a substance to vibrate, and the energy is
transferred through the substance in a wave.
A. heat
B. light
C. sound*
D. mechanical
Fossil fuels such as gas, oil, and coal have what kind of energy?
A. Nuclear energy
B. Chemical energy*
C. Electrical energy
D. Mechanical energy
8th Grade Science
Sample Assessment Items S8P2a,c.
When a match is lit, energy transforms from chemical energy to thermal (heat) energy and
light energy. Describe the changes in the chemical, thermal, and light energy of the lit match.
Enrique’s soccer coach told him to eat a good breakfast Saturday morning in order to have
plenty of energy for the soccer game. To which transformation of energy is Enrique’s coach
referring?
Look at the two diagrams
to the right. What type
of energy transformation
is occurring in both
diagrams?
An engine converts 95% of its energy to mechanical energy. What happens to the other 5%
of its energy?