In a sequence of rock layers we find trilobite fossils at the bottom of rock layer 1 and
dinosaur fossils directly above the fossil trilobites in layer 2. There are inclusions of
trilobites in layer 2. We conclude that
A) dinosaurs were extinct long before trilobites came into existence.
B) dinosaurs are from the Cambrian Period.
C) by inclusion and faunal succession, layer 1 is older than layer 2.
D) there is no time gap between the rocks.
Answer:
What can you deduce about the activation energy of a reaction that takes billions of
years to go to completion? How about a reaction that takes only fractions of a second?
A) The activation energy of both these reactions must be very low.
B) The activation energy of both these reactions must be very high.
C) The slow reaction must have a high activation energy while the fast reaction must
have a low activation energy.
D) The slow reaction must have a low activation energy while the fast reaction must
have a high activation energy.
Answer:
The International Space Station orbits at an average 360-km altitude so that it is mainly
above Earth’s
A) atmosphere.
B) gravitation.
C) both of these
D) none of the above
Answer:
A satellite near Earth makes a full circle in about 90 minutes. Much farther from Earth,
say at the distance to the Moon, time for a full circle would be
A) 90 minutes.
B) less than 90 minutes.
C) about 28 days.
D) not enough information
E) none of the above
Answer:
Which of the above would best describe how soap behaves in water?
A) a
B) b
C) c
D) d
E) none of the above
Answer:
Which of the above sections of this molecule would be considered to be the aromatic
portion of the molecule?
A) a
B) b
C) c
D) a and b
E) all of the above
Answer:
Which is largest?
A) a galaxy
B) a local group
C) a Supercluster
D) the observable universe
Answer:
The pressure in a liquid depends on liquid
A) density.
B) depth.
C) both of these
D) none of the above
Answer:
A rock’s permeability can be described by its
A) density.
B) depth of burial.
C) water-holding capacity.
D) water-transmitting capability, or hydraulic conductivity.
Answer:
When a chocolate bar is cut in half, its density of each half is
A) halved.
B) unchanged.
C) doubled.
Answer:
The planet that is most tipped to its orbital plane is
A) Mars.
B) Jupiter.
C) Saturn.
D) Uranus.
E) Neptune.
Answer:
After our Sun burns its supply of hydrogen, it will become a
A) white dwarf.
B) black dwarf.
C) black hole.
D) red giant.
E) blue giant.
Answer:
Scientific equations in a conceptual course are mainly
A) recipes for plugging in numerical data.
B) guides to thinking about the relationships between concepts.
C) for mathematical problem solving.
D) unfortunately a confusing way of explaining ideas.
Answer:
Most of Earth’s seismic activity, volcanism, and mountain building occur along
A) convergent boundaries.
B) divergent boundaries.
C) plate boundaries.
D) transform fault boundaries.
Answer:
Compared to the wavelength of incident light, diffuse reflection occurs when the size of
surface irregularities is
A) smaller.
B) larger.
C) about the same.
Answer:
Groundwater is water
A) beneath the ground surface.
B) above the water table.
C) that soaks into the ground.
D) below the water table.
Answer:
A bullet fired from a rifle begins to fall
A) as soon as it leaves the barrel.
B) after air friction reduces its speed.
C) neither of these
Answer:
Petroleum and oil reserves are often found in sedimentary rocks because
A) these rocks are very porous and permeable.
B) chemical changes occur to create these reserves.
C) these rocks often contain fossilized organic matter.
D) oil accumulates in the sediments.
Answer:
Air’s capacity for water vapor is dependent on
A) the water-vapor content.
B) saturation.
C) relative humidity.
D) temperature.
Answer:
How would you classify the following material?
swimming pool water
A) homogeneous mixture
B) heterogeneous mixture
C) a pure element
D) a pure compound
E) depends on how many children have been in it
Answer:
Food cooked in a microwave oven depends on electrical
A) conduction.
B) charge polarization.
C) resistance changes.
D) field strength.
E) all of the above
Answer:
Whether a truck comes to a stop by crashing into a haystack or a brick wall, the impulse
is
A) greater with the haystack.
B) greater with the brick wall.
C) both the same
Answer:
A node is a position of
A) minimum amplitude.
B) maximum amplitude.
C) minimum frequency.
Answer:
Water boils in the mountains at
A) a higher temperature than at sea level.
B) a lower temperature than at sea level.
C) the same temperature as at sea level.
Answer:
Drumlins are made of
A) bedrock.
B) ice.
C) drift.
D) striations.
Answer:
If a volume of air is warmed, it expands. If a volume of air expands, it
A) warms.
B) cools.
C) neither warms nor cools.
Answer:
Which of the following would have the lowest melting point?
A) CCl4
B) CBr4
C) CF4
D) CI4
E) not enough information given
Answer:
How many grams of sugar (sucrose) are there in 5 liters of sugar water that has a
concentration of 0.5 grams per liter of solution?
A) 50 g
B) 25 g
C) 2.5 g
D) 1.5 g
Answer:
Which element would have chemical properties the most similar to chlorine (Cl)?
A) Br
B) O
C) Ar
D) S
E) Na
Answer:
A combination of two or more substances in which they no longer retain their chemical
properties is called a(n)
A) mixture.
B) compound.
C) heterogeneous mixture.
D) periodic trend.
E) suspension.
Answer:
Fourier analysis is used
A) in breaking down sound signals to component parts.
B) automatically in human hearing.
C) both of these
D) none of the above
Answer: