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| Energy use per person in the US today is... |
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| About 4 times the world average |
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| Energy not ultimately derived from solar radiation is found in... |
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Arrange these sources in increasing order of the amount of energy they supply to the world today
Coal, Oil, Natural gas, Nuclear |
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| Nuclear, Natural gas, Coal, Oil |
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| Of the following energy sources, the one most likely to run out of reserves first is... |
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| If the Antarctic and Greenland icecaps melt completely, sea level will rise |
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| If present trends in population and greenhouse gas emissions continue, the earth's surface temperature will increase by a catastrophic 4 degrees C by the year... |
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| The earth's atmosphere is mainly heated by... |
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| Infared light radiated by the earth |
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| Of the following greenhouse gases, the most important is... |
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| The two countries that together are responsible for about half the world's carbon dioxide emissions are... |
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| Most oil today is used for... |
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| The world's largest importer of oil is... |
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| Methane is the chief constituent of... |
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| The fossil fuels that are the least and most polluting to burn are respectively... |
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| The world's fastest-growing source of clean energy is... |
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| Environmental concerns are the most important factor in limiting the expansion of which of the following energy sources? |
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| The energy the world uses in a year is comparable with the energy that arrives from the sun every... |
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| What is the formula relating temperature on the Celsius and Fahrenheit scale? |
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| When heat is added to a body of matter, the resulting temperature increases does not depend upon... |
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| What substance has the highest specific heat? |
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| Heat can be transferred through a vacuum by which one or more of the following? |
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| Heat can be transferred through a gas by which one or more of the following? |
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| Conduction, convection, and radiation |
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| Heat conduction is most efficient in... |
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| Heat conduction is least efficient in... |
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| Which quantity is independent of the size and shape of an object composed of a given material? |
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| The average pressure of the atmosphere at sea level corresponds to... |
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Definition
| 101 kPa and 15 lb/in squared |
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| The pressure at the bottom of a barrel filled with liquid does not depend on the... |
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Definition
| Area of the liquid surface |
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| Buoyancy occurs because, as the depth in a fluid increases, the fluid's... |
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| In order for an object to sink when placed in water, the object's average density must be... |
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| A Celsius thermometer and an absolute thermometer are used to measure the temperature of the same gas sample. The readings on the thermometers are respectively C and K. Which is correct? |
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| Of the following, a molecule is best described as... |
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Definition
| the smallest particle of a substance that is representative of the substance |
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| Molecules are, in general, farthest apart from one another in... |
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| Suppose there were molecules that had no attraction whatsoever for one another. A collection of such molecules would form a... |
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| Molecular motion in a gas is the minimum possible at... |
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| When a liquid freezes to become a solid... |
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| Oxygen boils at -183 degrees C. This temperature is... |
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| A positive electric charge... |
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Definition
| Repels other positive charges |
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| Coulomb's formula F=KQ1Q2/R squared gives the force between two charges in free space. The value of K... |
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Definition
| is the same under all circumstances |
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| Relative to the electric force between two protons, the gravitational force between them is... |
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Definition
| small positive nucleus surrounded at a distance by electrons |
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| A solid conductor is one... |
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Definition
| whose electrons are free to move about |
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| The volt is the unit of electric... |
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Definition
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| The watt, the unit of power, is equal to the... |
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| The conventional unit of battery capacity is the ampere-hour, which is actually a unit of... |
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| When a current passes through a resistance, the electric energy that is lost... |
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Definition
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| A magnetic field does not interact with a... |
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Definition
| Stationary electric charge |
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| A compass needle tends to... |
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Definition
| line up parallel to a magnetic field |
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| A current is flowing south along a power line. Neglecting the earth's field, the direction of the magnetic field under the power line is... |
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| A current-carrying wire is in a magnetic field with the direction of the current perpendicular to that of the field... |
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Definition
| The wire tends to move parallel to the field |
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Term
| Two charges of +Q are 1 cm apart. If one charge is replaced by a charge of -Q, the magnitude of the force between them is... |
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Definition
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| Two charges, one positive and the other negative, are initially 2 cm apart and are then pulled away from each other until they are 6 cm apart. The force between them is now smaller by a factor of... |
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