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Physical Science
Exam
Review Questions
When a plastic rod is rubbed with fur, the plastic
rod becomes negatively charged. Which statement
explains the charge transfer between the plastic rod
and the fur?
A. Protons are transferred from the plastic rod
to the fur.
B. Protons are transferred from the fur to the
plastic rod.
C. Electrons are transferred from the plastic
rod to the fur.
D. Electrons are transferred from the fur to
the plastic rod.
How do electrically charged objects affect neutral
objects when they come in contact?
A. Electrons move from negatively charged
objects to neutral objects.
B. Electrons move from neutral objects to
negatively charged objects.
C. Protons move from positively charged
objects to neutral objects.
D. Protons move from neutral objects to
positively charged objects.
A series circuit has a 6-V battery and 3 ohms of
resistance. How much current will flow through the
circuit?
A. 0.5 A
B. 2 A
C. 3 A
D. 18 A
What voltage is required to run a 45-watt light bulb
if the current is 0.5 ampere?
A. 45 volts
B. 90 volts
C. 120 volts
D. 225 volts
Which best describes a circuit in series?
A. Different parts are on separate branches.
B. Current values are different at various
points in the circuit.
C. Electrons may take several paths.
D. Electrons have only one path at all times.
Which statement is true about parallel circuits?
A. They contain separate branches through
which current can flow.
B. They are usually called open circuits.
C. They provide one path through which
current can flow.
D. They cease to function when one part of
the circuit is disconnected.
A _____________ is a kind of plastic that can be
remelted and reused.
A. Thermoplastic
B. Thermos
C. Thermoset
D. Thermometer
Hydrocarbons with at least one triple bond are
called __________.
A. Alkanes
B. Alkenes
C. Alkynes
D. Cycloalkanes
The processes involved in the rock cycle include all
of the following EXCEPT ____.
A. Condensation
B. Erosion
C. Weathering
D. Compaction
Sedimentary rocks are ____.
A. formed from magma
B. a type of foliated igneous rock
C. formed because of changes in temperature
and pressure, or the presence of hot
watery fluids
D. formed when loose materials become
pressed or cemented together
Eutrophication, a form of water pollution, is
associated with:
A. heated water waste from power plants
B. over fertilization of water
C. water-borne bacteria
D. burning of fossil fuels
The environmental cost of hydroelectric power
includes ________.
A. increased biodiversity
B. Desertification
C. disruption of valley and river ecosystems
D. water pollution
Which of the following is the most significant
"greenhouse gas"?
A. carbon dioxide
B. CFCs
C. methane
D. water vapor
Which of the following organisms would be
expected to have the highest concentration of
mercury pollution in its tissues?
A. the secondary consumers, such as
sardines and herring
B. primary producers such as aquatic plants,
phytoplankton, and algae
C. primary consumers, such as zooplankton
D. the tertiary consumers, such as tuna and
sharks
The ___________ is the reservoir that contains
living things.
A. Atmosphere
B. Biosphere
C. Lithosphere
D. Hydrosphere
The phenomenon in which high levels of carbon
dioxide cause global warming is known as:
A. the Gaia hypothesis
B. acid deposition
C. the greenhouse effect
D. global distillation
The main method of heat transfer that causes a
pot of water to boil is:
A. Conduction
B. Convection
C. Radiation
This type of heat transfer can occur in a vacuum:
A. Conduction
B. Convection
C. Radiation
Which is the best example that something has
kinetic energy?
A. a car parked on a steep hill
B. a tennis ball rolling across the court
C. a picture hanging on the wall
D. a piece of coal before it's burned