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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
B) 143
C) 235
D) None of these
A ray of light in water strikes an air"water interface at an angle of incidence greater
than the critical angle. The ray
A) emerges but is bent away from the normal.
B) travels along the interface.
C) emerges but is bent toward the normal.
D) is totally reflected into the water.
______________ is defined as the angular measurement, in degrees, east or west of the
Greenwich, or prime, meridian.
A) The equator
B) The International Date Line
C) Latitude
D) Longitude
What electric charge is characteristic for an ion of O?
A) 6+
B) 0
C) 2"
D) 2+
Earthquake S waves are
A) transverse.
B) sometimes longitudinal and sometimes transverse.
C) longitudinal.
D) neither longitudinal nor transverse.
How many elements occur naturally on Earth?
A) 102
B) 88
C) 112
D) 82
When the measured quantity 45.67 kg is divided by the measured quantity 3.42 L, the
answer should have how many significant figures?
A) Three
B) One
C) Four
D) Two
If a rock sample contains uranium and lead, and lead-204 is present, then
A) both radiogenic and primordial lead are present.
B) all the lead is primordial.
C) neither radiologic nor primordial lead is present.
D) all the lead is radiogenic.
In the Bergeron process, condensation occurs on
A) ice crystals.
B) dust.
C) carbon dioxide.
D) oxygen.
A spacecraft in space keeps going at the same velocity, even without firing its rockets,
in accordance with the _______________ law of motion.
A) fourth
B) first
C) second
D) third
Enormous filaments of excited gas arching over the Sun's surface and extending
hundreds of thousand of kilometers outward are called
A) sunspots.
B) solar flares.
C) prominences.
D) coronal arcs.
The top of the thermosphere is called the
A) stratopause.
B) tropopause.
C) mesopause.
D) thermopause.
A hydrocarbon that is notclassified as aromatic must be classified as
A) nucleophilic.
B) synthetic.
C) aliphatic.
D) carboxylic.
Which of the following is nota carbohydrate?
A) Maltose
B) Glycine
C) Fructose
D) Glucose
If you lift a 35-N weight vertically 50 m above the ground, you are
A) doing work against gravity.
B) doing work against friction.
C) doing work against inertia.
D) doing none of these.
The longest diameter of the Milky Way is about how many light-years?
A) 10
B) 10,000
C) 100
D) 100,000
A line drawn through locations of equal atmospheric pressure is a(n)
A) equipress.
B) anemometer.
C) wind vane.
D) isobar.
The ancient Greek who is known for championing the concept of atom was named
______________.
A) Democritus
B) Socrates
C) Plato
D) Zeus
The angles of incidence and reflection
A) are not related.
B) can never be equal.
C) are measured from a normal to the reflecting surface.
D) add to 90.
When the atoms of two or more elements react chemically, they usually join together to
form
A) isotopes.
B) new elements.
C) molecules.
D) isomers.
Which element was detected in the Sun before it was found on Earth?
A) Hydrogen
B) Promethium
C) Helium
D) Argon
Small glaciers that form along mountains in hollow depressions are called
A) cirque glaciers.
B) mountain glaciers.
C) caldera glaciers.
D) moraines.
Cholesterol belongs to what class of organic compounds?
A) Alkyl halides
B) Esters
C) Carboxylic acids
D) Alcohols
It is 12:00 noon local solar time at 75W. The date is March 21. At which of the
following longitudes would an observer be able to see the last-quarter moon rising?
A) 105W
B) 75E
C) 15W
D) 105E
Taurus the Bull is a(n)
A) star.
B) asterism.
C) galaxy.
D) constellation.
When one travels west while passing over a time zone boundary (ignoring daylight
savings time issues),
A) the date is decreased one day.
B) the time is decreased one hour.
C) the time is advanced one hour.
D) the date is advanced one day.
E) none of these occurs.
The three types of plate boundaries are convergent, __________, and transform
boundaries.
A) divergent
B) slip
C) strike
D) none of these
The most southern latitude from which an observer on Earth can see the North Star
(Polaris) is
A) 66.5S.
B) 23.5S.
C) 0.
D) 23.5N.
An insulator has a positive electric charge of 4 x 10-17C. How many electrons were
added or removed?
A) 250 electrons removed
B) 40 electrons removed
C) 250 electrons added
D) 40 electrons added
It is generally believed that there are 7 days in a week because
A) there are 7 stars in the Big Dipper.
B) it is necessary to have 52 weeks in a year.
C) there are 7 visible bodies in the sky that move against the background of the fixed
stars.
D) it is easy to multiply by 7.
A joule/meter (J/m) is a unit of
A) force.
B) work.
C) energy.
D) power.
The largest reserve of energy in the United States is in what form?
A) Oil
B) Natural gas
C) Coal
D) Nuclear
Under ideal conditions, a projectile with a given initial speed at an angle of 85 has the
same range as a projectile at an angle of ______________ with the same initial speed.
A depression on the land surface caused by the collapse of a cavern is called
a(n)______________.
On Earth, the magnitude of the velocity of a vertical projectile at its maximum height is
equal to ______________.
Suppose you start at Washington, D.C. (39N, 77W), and travel 400 nautical miles due
south, then 400 nautical miles due east, then 400 nautical miles due north, and then 400
nautical miles due west. Where will you arrive with respect to Washington, D.C.? That
is will you be at the starting point, or north, south, east, or west of the starting point?
What is the molarity of a solution that contains 2 mol of solute in 4 L of solution?
Halley's comet has a sidereal period of 76.2 years. Determine the value of the
semimajor axis of its orbit. (Use Kepler's third law.)
The hardest mineral on the Mohs hardness scale is named _____________.
Halley's Comet returns about every ______________ years.
The distance a dropped object travels is proportional to the ______________ of the
time.
The most distant known objects in space are called _______________.
Physics deals with matter, motion, force, and ________________.
Long-period comets are believed to come from the ______________.
An excited gas in a gas-discharge tube emits light that disperses into a(n)
______________ spectrum.
A rifle bullet shot horizontally has a vertical acceleration of ______________.
A(n) ______________ glacier is one in which a valley floor is covered with glacial ice.
