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Global Warming Mid-Term
Terms in this set (81)
Look over short answer diagrams
According to Newton the greater the distance between masses of interacting objects, the
less the gravitational force between them
Atoms and Molecules are always
Heat energy travels from an object with a high
temperature to an object with a lower temperature
the fact that a thermometer "takes its own temperature" illustrates
The moderate temperatures of islands throughout the world has much to do with water's
high specific heat capacity
Ice has a lower density than water because ice
Is made of open-structured,hexagonal crystals
Entropy is closely related to the
second law of thermodynamics
As a system becomes more disordered entropy
When water is heated 4 Degrees Celsius it expands. When water at 4 degrees celsius is cooled it
A substance can absorb heat energy by the process of
conduction, radiation, convection = all of the above
To say that electric charge is conserved is to say that electric charge
can neither be created nor destroyed
The electrical force between charges is strongest when the
charges are close together
To say that an object is electrically polarized is to say
its charges have been rearranged
The source of all wave motion is a
In longitudinal wave, the compressions and rarefactions travel in
the same direction
The vibrations of a transverse wave move in a direction
at right angles to the direction of wave travel
A wave travels an average distance of 6m in 1s what is the wave's velocity
For light a red shift indicates the light source moves
away from you
True or False Most of the electromagnetic spectrum consists of visible light
Electromagnetic waves consist of
Vibrating electric and magnetic fields
Which of these electromagnetic waves has the shortest wavelength
Relative to ultraviolet waves, the wavelength of infrared wave is
IF the sun were to disappear right now, we wouldn't know about it for 8 minutes because it takes 8 minutes
for light to travel from the sun to earth
the color of an opaque object is the same as the light that is
Light travels faster in
Science is a body of knowledge that goes back to
The scientific method is a method for
gaining new knowledge
In science, an educated guess is a
When a scientist is dishonest and reports false information, he or she
gets no second chance in the scientific community.
A scientific hypothesis may turn out to be right or it may turn out to be wrong. If it is a valid hypothesis there must be a test for proving it
The scientific spirit is based upon
Whereas Aristotle relied on logic in explaining nature, Galileo relied n
Which has the greater mass
an automobile battery
Your weight is
The gravitational attraction between you and the earth
A 1-kg mass at earth's surface weighs about
Density is the ration of
mass to volume
The tow measurements necessary for calculating average speed are
distance and time
Whirl a rock at the end of a string and it follows a circular path. If the string breaks, the tendency of the rock is to
Follow a straight-line path
An object maintains its state of motion because it has
A truck is moving at constant velocity. Inside the storage compartment, a rock is dropped from the midpoint of the ceiling and strike the floor below. The rock hits the floor.
Exactly below the midpoint of the ceiling
A force is a vector quantity because it has both
magnitude and direction
A truly educated person is knowledgeable about
the arts, science, and religion = all of the above
Science, are,and religion do not contradict one another because
All three have different domains
If experimental findings are not reproducible
the results are not considered valid
The impulse-momentum relationship is a direct result of
Newtons second law
The conservation of momentum is most closely related to
Newtons Third law
A job is done slowly, while an identical job is done quickly. Both jobs require the same amount of work, but different amounts of
If you exert 1 N for a distance of 1 m in 1 s, you will deliver a power of
An object is raised above the ground gaining a certain amount of potential energy. If the same object is raised twice as high, it gains
twice as much potential energy
An object that has kinetic energy must be
An object that has potential energy may have this energy because of its
Does is make sense to say that a textbook is about 99.9 percent empty space
Yes. A textbook like all material things is made up of atoms, which are considered to be 99.9 percent empty space.
Which of the following statements best describes an element?
a material that is pure
Which of the contributes more to an atom's mass: electrons or protons? Which contributes more to an atom's size?
Protons contribute more to an atom's mass while electrons contribute more to its size.
The nucleus of an electrically neutral iron atom contains 26 protons. How many electrons does this iron atom have?
If an atom has 43 electrons,56 neutrons, and 43 protons, what is its approximate atomic mass?
Atomic mass, 99 amu; technetium
The mass number of an element is
The sum of the protons and the neutrons
which of the following statements describes an isotope
element with the same number of protons but a different number of neutrons
Which element has the atomic number 9
Which of the following is not the name of a chemical family?
Why can't we see atoms
We see with light energy and the wavelength is larger than the object and so it is not reflected.
what do the electron configurations for all the group 18 noble gases have in common?
Their outermost occupied shells are filled to capacity.
What is the valence shell?
It is the outermost shell of electrons in an atom
Humidity is a measure of the amount of water vapor in the atmosphere. Why is humidity always very low inside your kitchen freezer?
Because at the cold temperatures of your kitchen freezer, water molecules in the vapor phase are moving relatively slowly, which makes it easier for them to stick to inner surfaces within the freezer or to other water molecules.
We feel uncomfortably warm on a muggy day because water molecules are
condensing on our bodies
when a solid is changed to a liquid phase, the solid
When liquids change to a solid phase, they
If you eat metallic sodium or inhale chlorine gas you stand a strong chance of dying. Let these two elements fact with each other, however, and you can safely sprinkle the compound on your popcorn for better take what is going on?
Sodium chloride has nothing in common with sodium and chlorine
what is the proper electron dot structure for carbon?
if a neutral atom gains two electrons, what is the electrical charge of the atom?
If a neutral atom loses one electron what is the electrical charge of the atom?
Which of the following best describes ionic bonding?
One atom giving up some of its electrons to another atom
What is the main difference between ionic and covalent bond?
One is the sharing of a pair of electrons, the other is the transfer of at least one electron.
What is a hydrocarbon
It is a molecule composed of carbon and hydrogen only
Which of the following is the simplest possible hydrocarbons?
What planet closely resembles the earth
the plane of the earths orbit
Ground water is in what Zone
According to intermediate disturbance hypothesis
regular disturbances if not to extreme actually contribute to biodiversity
"differential spin" distorts the solar magnetic field which bursts out and forms
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