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Which of the following terms is(are) used to describe a division of a stream’s load? A) Bed load only B) Suspended load only . C) Dissolved load only. D) All of the above The general geologic term for the downslope […]

Ethene and ethane are A) isomers. B) the same compound. C) neither isomers nor the same compound. The Stock system of nomenclature uses A) Roman numerals. B) Greek prefixes. C) Arabic numerals. D) Egyptian hieroglyphics. Answer: A The time interval […]

The planet with the Great Dark Spot is A) Jupiter. B) Saturn. C) Uranus. D) Neptune. A normal lapse rate of 3.5 F/1000 ft is equivalent to A) 3.5 C/m. B) 1.9 C/1000 ft. C) 3.5 C/1000 ft. D) 6.5 […]

A waxing phase of the Moon can be seen A) 10 days after a full moon. B) 10 days after a new moon. C) 10 days before a new moon. D) none of these When one travels east while passing […]

A student weighing 200 N climbed a flight of stairs 9.0 m high in 4 s. How much work was done by the student? A) 1800 J B) 800 J C) 1800 W D) 800 W E) 50 W Radioactive […]

The celestial prime meridian is an imaginary half-circle running from the north celestial pole to the south celestial pole and crossing perpendicular to the celestial equator at the point of the A) autumnal equinox. B) summer solstice. C) vernal equinox. […]

The fourth planet from the Sun is ______________. The law of poles states that like magnetic poles ______________ and unlike magnetic poles ______________. Answer: repel; attract Microwave ovens work mainly by exciting molecules of the substance named ______________. Answer: water […]

Which of the following radiations has the smallest wavelength? A) Infrared B) Visible C) Ultraviolet D) X-rays When the equation NH4NO3N2O + H2O is balanced, the total of all the coefficients (both written and “understood”) is A) 3. B) 4. […]

What color are the stars with the hottest photosphere? A) White B) Yellow C) Red D) Blue Comets are composed of ______________. A) dust and ice B) rock C) helium D) lead E) iron Answer: A The Mercalli scale was […]

In projectile motion, which of the following is notconstant? A) Vertical velocity B) Horizontal velocity C) Acceleration D) None of these The preferred name of NiS is A) nickel(III) sulfide. B) nickel(II) sulfide. C) nickel(I) sulfide. D) nickel sulfide. Answer: […]

In a debate, is the statement “It’s only a theory” a valid argument point against a theory (as in “The theory of evolution is wrong because it’s only a theory”)? A) Yes, theories are weak. B) No, theories are strong. […]

An insulator has a negative electric charge of 2.4 x 10-17C. How many electrons were added or removed? A) 150 electrons removed B) 67 electrons removed C) 150 electrons added D) 67 electrons added The point of the initial energy […]

Hawaii’s weather is chiefly affected by what type of air mass? A) mA B) mP C) cP D) mT What was the nationality of the first persons who we know speculated about “elements”? A) Chinese B) Egyptian C) Greek D) […]

A cola drink is a good example of A) a compound. B) a heterogeneous mixture. C) a homogeneous mixture. D) an element. What is the formula of a compound formed from the ions M1+ and X3-? A) M3X B) MX3 […]

A common scale for denoting a mineral’s hardness is the A) Ores scale. B) Mohs scale. C) Homs scale. D) Ohms scale. The chemical properties of chlorine and bromine are similar because both A) are nonmetals and they are close […]

1-Chlorobutane and 2-chlorobutane are A) isomers. B) the same compound. C) neither isomers nor the same compound. The symbol for tungsten is A) W. B) Ti. C) Ag. D) Tb. Answer: A The separation of white light into its component […]

The type of smog that forms in Los Angeles is called ______________ smog. Tripling the frequency of a photon would ______________ its energy. Answer: triple A(n) ______________ quantity has only magnitude. Answer: scalar The cataclysmic explosion of a star that […]

By definition, the removal of oxygen from a compound is called A) neutralization. B) reduction. C) oxidation. D) displacement. The far side of the Moon A) has never been seen. B) has more craters than the near side. C) looks […]

Thomson discovered the ______________ in 1897. The energy differences in some of the rotational energy levels of the water molecule allow cooking with ______________. Answer: microwaves Charon is ______________ only moon. Answer: Pluto’s Rocks solidified from molten material above ground […]

The speed of a comet in its orbit around the Sun is ______________ when its distance from the Sun is greatest (aphelion). A) zero B) reversed C) greatest D) least Sound is a(n) A) longitudinal wave. B) electromagnetic wave. C) […]

The Tertiary is a(n) A) epoch. B) era. C) eon. D) period. A chemical combination of two or more substances in variable proportions is called A) a mixture. B) a compound. C) an ion. D) a molecule. Answer: B C3H4is […]

Matter waves are also called ______________ waves. “Canals” are a feature once associated with the planet ______________. Answer: Mars Solids, liquids, and gases are called ______________ of matter. Answer: phases Gravity acting on ______________ played an important role in the […]

The Sun will finally become a A) brown dwarf. B) neutron star. C) black hole. D) white dwarf. Calculate the radius in nanometers of the orbit of a hydrogen atom’s electron with n= 5. A) 0.27 B) 2.7 C) 1.3 […]

The imaginary line encircling Earth at its surface, halfway between the north and south geographic poles, is called the A) meridian. B) equator. C) International Date Line. D) longitude. E) latitude. Which of the following is(are) believed to be material […]

Who discovered the electron in 1897? A) Dalton B) Bohr C) Rutherford D) Thomson A measurement of 0.00254 g is the same as A) 0.254 mg. B) 25.4 mg. C) 254 mg. D) 2.54 mg. E) none of these. Answer: […]

What is the preferred name for Mg3N2? A) Magnesium trinitride B) Magnesium nitride C) Dimagnesium trinitride D) Manganese nitrate The apparent path that the Sun traces annually along the celestial sphere is called the A) ecliptic. B) heliosphere. C) solstice […]

A high tide is occurring at Charleston, South Carolina (24W, 43N). Which listed longitude is experiencing a low tide occurring? A) 156E B) 24E C) 66E D) 66W E) 156W The heliosphere is defined as the volume of space over […]

A hydrometer is used to measure A) the time for an object to sink. B) water (hydro). C) the volume of a quantity of water. D) liquid density. How many protons are there in an atom of ? A) 92 […]

A sound with a frequency of 15 Hz is in the ______________ region of the sound spectrum. When the equation H2O + NO2NO + HNO3is balanced, the sum of all the coefficients (both written and “understood”) is ______________. Answer: 7 […]

An ionic compound composed of a cation other than H+and an anion other than OH–is called a(n) A) salt. B) precipitate. C) conjugate base. D) electrolyte. When a net force on a moving object increases, the object will A) maintain […]

As comets approach and move around the Sun, the coma and the tail ______________ in size. A) decrease B) increase C) remain the same D) none of the above A volcano with a low, gently sloping profile is a A) […]

Ion-dipole interactions are responsible for A) the dissolving of salt in water. B) ice being less dense than water. C) the ease of electrolysis of water. D) metallic bonding in steel. Which of the following planets can be in opposition? […]

The kinetic energy of a pendulum is least A) when its potential energy is least. B) at the top of its swing. C) at the bottom of its swing. D) when its total energy is greatest. “Weightlessness” occurs when an […]

According to Newton’s second law, the force required to accelerate an object is equal to A) its acceleration divided by its mass. B) its mass times the acceleration. C) its mass divided by the velocity. D) its weight times the […]

An earthquake S wave travels through A) the inner core only. B) the mantle only. C) the outer core only. D) all of these. Thermonuclear warheads, or hydrogen bombs, are powerful mainly because of the A) fission process. B) fusion […]

A hurricane, in other parts of the world, is also known as A) a cyclone. B) a willy-willy. C) a typhoon. D) all of the above. Which of the following radiations is absorbed in the greenhouse effect? A) Ultraviolet only […]

According to the Schrdinger equation, the probability of finding a hydrogen atom’s ground-state electron 0.053 nm from the proton is A) zero. B) high, but not 100%. C) low, but not zero. D) 100%. Except for hydrogen and helium, atoms […]

If an object of mass 9 kg has a velocity of 7 m/s, what is its linear momentum? A) 63 kg-m/s B) 1.3 kg-m/s C) 0.78 kg-m/s D) 16 kg-m/s E) cannot be determined Which alcohol is used in rubbing […]

The variables m1and m2 that appear in the equation F = Gm1m2/r2 are A) the straight-line distance between the centers of each object. B) the rate at which each object is moving. C) the mass of each object. D) the […]

______________ is the major moon of Neptune. A) Triton B) Titan C) Ganymede D) Europa E) Callisto The oldest evidence of life on Earth dates back to about how many years ago? A) 65 million B) 3.8 million C) 3.5 […]

The three fusion reactions used by the Sun to generate energy are together known as the _______________. What is the wavelength, in meters, of radio waves produced by a radio station with a frequency of 1400 kHz? (c= 3.00 x […]

Complete the equation, and state what type of decay is occurring. _____________ The recent modification of the standard Big Bang model is called the _______________ model. Answer: inflationary The ice point and the steam point of water are commonly called […]

A normal lapse rate of 3.5 F/1000 ft is equivalent to A) 3.5 C/m. B) 4 C/1000 ft. C) 3.5 C/km. D) 6.5 C/1000 m. The physical characteristic that is used to distinguish intrusive igneous rocks from extrusive igneous rocks […]

A high tide is occurring at Charleston, South Carolina (80W, 33N). What two longitudes are experiencing low tide? The imaginary, huge, apparently moving sphere on which the stars appear to be mounted is called the _______________ sphere. Answer: celestial A […]

A Group 7A element would be most likely to form a covalent bond with elements of Group A) 2A. B) 1A. C) 8A. D) 6A. The ______________ angle added to the altitude angle equals 90. A) inclination B) declination C) […]

Which of the following compounds would be expected to be hard and brittle and to have a high melting point? A) H2SO4 B) KBr C) H2C2O4 D) IF7 The Greenwich meridian is also known as the A) zero, or prime, […]

The most important force between a proton and a neutron is the ______________ force. A) strong nuclear B) quark C) electromagnetic D) gravitational The Gregorian calendar assumed that there were ______________ days in a year. A) 365 B) 365 C) […]

How much heat is required to melt 6.0 kg of ice at 0°C to water at 0°C? A) 480 kcal B) 0 kcal C) 3240 kcal D) 720 kcal Earth’s radius is about A) 3600 km. B) 5800 km. C) […]

The Columbia Plateau in the northwestern United States is an example of a(n) A) flood basalt. B) batholith. C) monolith. D) sill. Stellar paralaxproves that Earth is A) rotating. B) revolving. C) precessing. D) an oblate spheroid. Answer: B Which […]

The abbreviation of the unit of resistance is For a compound composed of ions, the smallest combination of ions that gives the formula of the compound is called a A) molecule. B) polyionic atom. C) polyatomic ion. D) formula unit. […]

If 900 Joules of heat is added to a system, while the system does 700 Joules, by how much does the internal energy increase? A) “1600 J B) “200 J C) 900 J D) 200 J E) 1600 J The […]

One watt is equal to ______________ per second. A) one kilogram B) one newton C) one joule D) one meter The average adult radiates heat energy at the same rate as A) a 10-W light bulb. B) a 100-kW light […]

The “surface” of a black hole is known as the _______________. A) core B) corona C) photosphere D) event horizon Which of the Jovian planets has the most moons? A) Jupiter B) Saturn C) Uranus D) Neptune Answer: A The […]

Which one of the following is a physical change? A) Rusting of iron B) Fermenting of grape juice C) Souring of milk D) Sharpening a pencil Energy provided directly from Earth’s interior is called A) groundwater energy. B) geothermal energy. […]

What are the standard time and date (time of day and day of month) in Kyoto, Japan (135E, 35N), when it is 11 A.M. EST on March 10 in Washington, D.C. (39N, 77W)? A constant volume and mass of helium […]

A balanced chemical equation will have the same ______________ on each side. A) number of moles B) number of molecules C) mass of each compound D) number of atoms of each element A projectile’s vertical velocity component A) changes most […]

Earth’s axis completes a precession every A) 25,800 years. B) 30 days. C) day. D) 365 days. The lowest energy level of a hydrogen atom (n= 1) is called A) the ground state. B) the potential state. C) the ionization […]

A mass is accelerated when ______________ acts upon the mass. A) a balanced force B) any force C) no force D) an unbalanced force E) none of these An object that is moving with an acceleration different from zero will […]

The elapsed time between two successive crossings of the same meridian by the Sun is known as ______________ day. A) one sidereal B) an apparent solar C) a 24-hour D) a mean solar The word sciencecomes from the Latin word […]

Land and sea breezes result from A) the Coriolis force. B) convection cycles. C) low-pressure areas. D) high-pressure areas. Which one of the following is true for deceleration? A) The acceleration is in the direction opposite the motion. B) The […]

A scientist named ______________ discovered radioactivity in 1896. When a planet has the same meridian as a star, the planet is said to be in ______________. Answer: conjunction When energy is released in a chemical reaction, the reaction is called […]

The local solar time at 25W is 12:00 noon. What is the longitude of an observer who sees the full moon on her meridian at this time? A) 155E B) 65E C) 25E D) 25W E) None of the above […]

If a positively charged object is brought near a suspended, positively charged object, the suspended object will be A) repelled. B) charged more. C) discharged. D) attracted. Who developed the quantum theory in 1900 and has a constant named for […]

How many constitutional isomers that are dibromopropanes exist? A) 5 B) 4 C) 7 D) 3 E) 6 The rate at which an object’s velocity changes with time is called its A) instantaneous velocity. B) motion. C) speed. D) acceleration. […]

During the approach of a severe thunderstorm, workers on a project see lightning and then hear the resulting thunder 25 s later. Approximately how far away, in miles, is the storm? A) 5 mi B) 10 mi C) 6 mi […]

The greater amount of substance in a solution is generally called the A) salt. B) solute. C) molar concentrate. D) solvent. Which of the following is the shell electron configuration for sulfur? A) 2, 4, 10 B) 10, 6 C) […]

A ______________ is an ultra-hot collection of electrically charged particles. A) gas B) liquid C) plasma D) solid The energy differences in some of the rotational energy levels of the water molecule allow A) X-rays to be produced. B) cooking […]

A chocolate chip cookie is a good example of A) a compound. B) an element. C) a homogeneous mixture. D) a heterogeneous mixture. Calculate the frequency in hertz of photons of light with energy of 9.90 x 10-19 J. A) […]

A large calorie (Cal) is the amount of heat needed to change the temperature of one ______________ of water by one Celsius degree. A) dekagram B) centigram C) gram D) kilogram According to Planck’s hypothesis, the energy of an oscillator […]

Which of the following classes of rock is most likely to contain fossils? A) Igneous B) Foliated C) Metamorphic D) Sedimentary The ______________ occurs on June 21. A) autumnal equinox B) winter solstice C) summer solstice D) vernal equinox Answer: […]

Suppose 25 g of reactant A is mixed with 45 g of reactant B. After a chemical reaction takes place between A and B, which statement is correct? A) The total mass of products plus any unreacted reactants will be […]