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WorksheetsFinal Exam
Total questions: 52
Worksheet time: 52mins
The mass of the sun is about _____ times larger than the mass of Earth.
30,000,000
300,000
30
3,000
Each column of the periodic table is
an isotope
a group
an element
a period
Temperature is a measure of the average _____ energy of the particles in the object
thermal
potential
kinetic
chemical
Which of the following causes a chemical change?
shattering
moving
burning
melting
The smallest unit of an element that maintains the properties if that element is a(n)
atom
compound
substance
molecule
Pascal's principle states that a contained fluid exerts pressure
only downwards
equally in all directions
only upwards
only upwards or downwards
The asteroid belt is found between Jupiter and
Mars
Uranus
Saturn
Neptune
Often atoms join so that each atom will have
more electrons that either protons or neutrons
an equal number of protons and electrons
an outermost energy level that is full of electrons
an even number of electrons
Fragments of molecules that have at least one electron available for bonding are called
radicals
ions
orbits
protons
An example of an endothermic reaction is
an exploding firecracker
photosynthesis by a plant
burning gasoline
bioluminescence by a firefly
An element's atomic number is equal to its number of
protons
valence electrons
protons and neutrons
neutrons
An object's volume can be found by dividing its mass by its
weight
temperature
density
pressure
The ozone layer is located in the
troposphere
mesosphere
stratosphere
thermosphere
Fossil fuels include
wood and charcoal
coal, natural gas, and oil
dinosaur bones
hydrogen, oxygen, and acetylene
A mole is an SI base unit that describes the
volume of a substance
amount of a substance
electric charge of a substance
mass of a substance
The Milky Way galaxy contains interstellar matter that may
form new universes
form new galaxies
form new stars
form new constellations
A protein is a polymer that is made of
amino acids
DNA
simple sugars
nitrogen and carbon dioxide
Bernoulli's principle describes the property of a(n)
fluid at rest
object floating in a fluid
fluid in motion
object submerged in a fluid
All four outer planets are
very small
gas giants
close to the sun
terrestrial planets
The location on Earth's surface where most earthquake damage occurs is called the
focus
surface wave point
epicenter
vent
Which of the following shows 0.0000043g?
4.3 x 10-7 g
4.3 x 106 g
4.3 x 10-6 g
4.3 x 107 g
A type of reaction that produces an increase in temperature is
exothermic
nonpolar
covalent
endothermic
A transform fault boundary occurs where two plates
move toward each other
move over each other
move past each other
move away from each other
What is the layer directly beneath Earth's crust called?
outer core
inner core
mantle
oceanic crust
Almost all weather occurs in the
troposphere
mesosphere
thermosphere
stratosphere
An ionic bond is a bond that forms between
ions with opposite charges
the electrons of two different atoms
one atom's nucleus and another atom's electrons
atoms with neutral charges
Venus is known for its
abundance of life
ring system
thick atmosphere
enormous size
Which type of weather produces the highest winds?
thunderstorm
tropical depression
tornado
hurricane
Ozone molecules are destroyed by
chlorofluorocarbons
ultraviolet radiation
carbon dioxide molecules
deoxyribonucleic acids
The direction in which the wind moves is influenced by
the time of day
the pressure gradient
the moon's orbit
none of the above
In which type of bond do atoms share electrons?
metallic bonds
covalent bonds
polyatomic bonds
ionic bonds
The substance that is formed in a chemical reaction is called the
reactant
radical
product
polymer
Olympus Mons, a volcano on ______, is the largest mountain in the solar system.
Earth
the moon
Venus
Mars
SI is considered a consistent system because it
has seven base units
dates back to 1795
uses derived units
is used worldwide
All matter is made of atoms and molecules that are
always in motion
moving slowly
always fixed in position
moving in the same direction
Nearly 90 percent of all stars are at what point in their life cycle?
infancy
youth
old age
mid-life
Two different isotopes of an element have different
number of protons
number of neutrons
atomic numbers
number of electrons
What is Mendeleev known for?
discovering Mendelevium
creating today's atomic model
discovering protons
publishing the first periodic table
Matter is defined as anything that
has mass and takes up space
can be weighed
contains kinetic energy
can be seen and touched
In the past 100 years the average temperature in the United States has increased by
7oF
an amount too small to measure
7oC
.7oC
Astronomers estimate that the universe contains
100 million galaxies
100 trillion galaxies
100 galaxies
100 billion galaxies
Ionization refers to the process of
losing or gaining protons
turning lithium in to fluorine
losing or gaining electrons
changing from one period to another
Which of the following is not considered an alternative source of energy?
geothermal energy
natural gas
solar energy
wind and water energy
In a balanced chemical equation, the mass of the reactants is equal to the
volume of the reactants
mass of the products
atomic mass of the elements
atoms on a molecule
Pure science is best defined as the
use of science to solve human problems
continuing search for new knowledge
application of scientific knowledge
study of the makeup of living things
The order of elements in the periodic table is based on
atomic mass
the electric charge of the nucleus
the number of neutrons in the nucleus
the number of protons in the nucleus
All organic compounds must contain the element
oxygen
carbon
nitrogen
hydrogen
A convergent boundary occurs where two plates
move over each other
mover past each other
move toward each other
move away from each other
Geothermal energy is not used world-wide because it is
geographically limited
very costly
nonrenewable
inefficient
Atoms have no electric charge because they
have an equal number of neutrons and protons
have an equal number of electrons and proton
have an equal number of charged and noncharged particles
have neutrons in their nuclei
A scientific theory is an explanation that
has been published in a journal or book
predicts what will happen
has been tested by many observations
a scientist has tested with an experiment
A release of energy is a sign that
organic chemicals are present
a physical change has just occurred
oxygen is present
a chemical change is taking place
