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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) 6400 km.
D) 4400 km.
How many atoms of oxygen are in 1.00 mol of sulfur dioxide, SO2?
A) 64.1
B) 64.1 x 6.02 x 1023
C) 12.0 x 1023
D) 6.02 x 1023
Which has a larger volume, a liter of water or a liter of mercury (a liquid metal)?
A) water
B) mercury
C) none of these
"Buckyball" is an allotrope of the element
A) carbon.
B) oxygen.
C) phosphorus.
D) none of these.
The color of the powder of a mineral is known as the mineral's
A) index of refraction.
B) hardness.
C) specific gravity.
D) streak.
Lightning between a cloud and the surrounding air is called
A) air discharges.
B) cloud discharges.
C) ground discharges.
D) intracloud discharges.
If a rock sample contains uranium and lead, but no lead-204 is present, then
A) all the lead is radiogenic.
B) all the lead is primordial.
C) both radiogenic and primordial lead are present.
D) neither radiologic nor primordial lead is present.
A temperature of degrees "95 Celsius is equivalent to _____ Kelvin.
A) "630.4
B) 178.0
C) "70.6
D) "368.0
Which of the following is nota terrestrial planet?
A) Earth
B) Mars
C) Saturn
D) Venus
When an earthquake occurs, the point of initial energy release is called the earthquake's
______________.
A) epicenter
B) fault line
C) focus
D) none of the above
Which mineral is a hard and brittle silica that shows conchoidal fracture?
A) Feldspar
B) Quartz
C) Calcite
D) Mica
The number of electrons in an atom of an element is the same as the element's
A) atomic number.
B) period number.
C) mass number.
D) group number.
Nimbus means
A) "poorly formed."
B) "rain forming cloud."
C) "heap."
D) none of these.
An acceleration may result from
A) a change in speed.
B) a change in direction.
C) a change in both speed and direction.
D) all of these
If an unbalanced force of 5 N force acts on a 8-kg object, what is its acceleration?
A) 40 m/s2
B) 0.63 m/s2
C) 1.6 m/s2
D) 13 m/s2
E) cannot be determined
The Eocene is a(n)
A) epoch.
B) era.
C) eon.
D) period.
In Europe, the combined Mississippian and Pennsylvanian periods are known as the
A) Carboniferous.
B) Devonian.
C) Pliocene.
D) Tertiary.
Which of the following is not a unit of power?
A) ft lb/s
B) kW h
C) J/s
D) watt
Short-period comets, such as Halley's Comet, are believed to come from the
A) asteroid belt.
B) Oort cloud.
C) Kuiper Belt.
Which fundamental quantity does the average person measure most often every day?
A) Mass
B) Length
C) Time
D) Electric charge
The Sun's high-speed charged nuclei and electrons form a fourth phase of matter known
as a
A) neutrino.
B) sunspot.
C) plasma.
D) fusion pool.
In organic molecules, a oxygen atom will normally form how many bonds?
A) 0
B) 1
C) 2
D) 3
E) 4
Conditions opposite to those of El Nio conditions are called
A) La Nia.
B) La Nio.
C) El Nia.
D) Anti-Nio.
Which of the following is a unit of mass density?
A) kg/m3
B) g/cm2
C) lb/ft3
D) lb/ft2
How many valence electrons do the Group 6A elements have?
A) 7
B) zero
C) 6
D) 1
Displacement divided by time gives
A) average acceleration.
B) average velocity.
C) average speed.
D) average distance.
If a person weighs 150 lb on Earth, what will the person weigh on the Moon?
A) 25 lb
B) 900 lb
C) 150 lb
D) 75 lb
E) 15 lb
Which of the following polymers is a hydrocarbon?
A) Polyethylene
B) PVC
C) Teflon
D) Dacron
Paleontology is the study of
A) animals.
B) plants.
C) fossils.
D) none of these.
What is the symbol for the element whose atoms have 40 electrons each?
A) Ge
B) Zr
C) Ar
D) None of these
Newton's law of universal gravitation is believed to be applicable
A) to the Milky Way only.
B) on Earth and the Moon only.
C) throughout the universe.
D) to the solar system only.
E) on Earth only.
The speed of light in a vacuum is 300,000,000 m/s. Represented in powers-of-10
notation, this is
A) 30 x 108m/s.
B) 3 x 107m/s.
C) 30 x 106m/s.
D) 3 x 108m/s.
An observer measures the North Star (Polaris) at an altitude of 40. The observer's
latitude is
A) 5N.
B) 50N.
C) 75N.
D) 40N.
E) none of these.
The main purpose of DST is to save _____________.
Complete the equation: CH3CCCH3+ 2 H2
In the Bergeron process, condensation occurs on ______________.
The formula mass for C2H6 is _______________.
Complete and balance the equation: Zn + AgNO3(aq)
Dry air has a density of 1.29 kg/m3. What would be the volume of a metric ton of air?
Angular momentum has units of ______________.
______________ is the largest moon in the solar system.
The large, central portion of a swirling solar nebula is called a(n) ______________.
The hydrocarbon symbolized by a square is called ______________.
The value for the total energy that reaches each square meter of Earth from the Sun
each second is called the _______________.
The definitions of an acid and a base as substances that give H+and OH-ions,
respectively, in water were proposed by the chemist named ______________.
The maximum current would flow in a set of resistors connected in ______________.
______________ fossils are those typical of a particular limited time segment of Earth's
history.
The physical disintegration or fracturing of rock is called ______________.
The three types of plate boundaries are convergent, divergent, and ______________
boundaries.
______________ is the largest known asteroid.
