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You can experience weight
A) standing on Earth's surface.
B) in an accelerating elevator away from Earth.
C) in a rotating habitat in space.
D) all of the above
Answer:
Which has the highest frequency?
A) red light.
B) green light.
C) blue light.
D) all the same
Answer:
If an object absorbs more energy than it emits, its
A) thermal energy decreases.
B) temperature decreases.
C) both of these
D) none of the above
Answer:
How far away from Earth must one travel to completely be beyond Earth's gravity?
A) to a region above the Earth's atmosphere
B) to a region well beyond the Moon
C) to a region beyond the solar system
D) forget it; you can't travel far enough
Answer:
A substance that heats up relatively quickly has a
A) high specific heat capacity.
B) low specific heat capacity.
C) high or low specific heat capacity.
Answer:
The interior of a greenhouse emits long-wavelength radiation due to its
A) green color.
B) plant cell structure.
C) transparency.
D) relatively low temperature.
Answer:
Which of the above molecules would most likely have a strong, distinct smell?
A) a
B) b
C) c
D) d
E) a or d
Answer:
An Earth satellite is simply a projectile
A) freely falling around Earth.
B) floating motionless in space near Earth.
C) approaching Earth from outer space.
Answer:
Coal is composed of
A) petrified wood.
B) buried plant material that has partially decayed.
C) buried animal material that has partially decayed.
D) a combination of oil-rich sediments and calcareous ooze.
Answer:
You're lying on the sand on a breezy day when a pesky fly wishes to join you. The
breeze is blowing at a steady 1 m/s. If the fly wishes to land on you it should hover over
you while flying
A) about 2 m/s relative to the breeze.
B) with the breeze at 1 m/s.
C) against the breeze at 1 m/s.
D) faster than 1 m/s but less than 2 m/s.
Answer:
Two positively-charged plastic straws near each other tend to
A) attract each other.
B) repel each other.
C) neutralize each other.
Answer:
An empty jug of weight W is at rest on a table. When water of weight w is poured into
it, the amount of support force supplied by the table is
A) W.
B) W + w.
C) W - w.
D) none of the above
Answer:
If your mass doubles, your weight
A) also doubles.
B) is quadrupled.
C) remains the same.
Answer:
The property of a mineral to break along planes of weakness is referred to as
A) cleavage.
B) hardness.
C) fracture.
D) bond strength.
Answer:
A strong gravitational field
A) slows a clock.
B) speeds up a clock.
C) has no effect on the speed of a clock.
Answer:
The different colors of the spectrum
A) are sharply divided.
B) blend from one to another.
C) differ from the colors of a rainbow.
Answer:
When the bottom string is pulled slowly in the heavy-ball-and-strings demonstration
(Figure 1.7 in your text), tension
A) in the top string is due to your pull plus the weight of the ball.
B) is about the same in both strings.
C) in the bottom string is zero.
D) none of the above
Answer:
Granitic pebbles with a radiometric age of 300 million years are embedded in a
sedimentary rock. A dike, dated at 200 million years, intrudes into the sedimentary rock.
With all this information we can estimate the age of the sedimentary rock to be
A) older than 300 million years.
B) younger than 200 million years.
C) between 200 and 300 million years old.
D) precisely 300 million years old.
Answer:
Glacial debris is generally
A) well rounded and well sorted.
B) a mishmash of shapes and sizes.
C) unstriated.
D) angular and well sorted.
Answer:
The sky is blue because air molecules in the sky act as tiny
A) mirrors that reflect only blue light.
B) resonators that scatter blue light.
C) sources of white light.
D) prisms.
E) none of the above
Answer:
An 800-N man stands at rest with his weight evenly distributed on two bathroom scales.
The reading on each scale is
A) 200 N.
B) 400 N.
C) 800 N.
D) 1600 N.
E) none of the above
Answer:
The angle of the Sun's rays striking Earth's surface greatly affects the
A) Earth's seasons.
B) equatorial and polar regions.
C) intensity of solar energy received at Earth's surface.
D) distribution of solar energyfrom the poles to the equator, hours of daylight, and the
seasons.
Answer:
A sub-surface region that holds and transmits water is called a/an
A) aquifer.
B) hydrometer.
C) water table.
D) aquiclude.
Answer:
We can say that Earth's crust floats on the mantle because
A) the mantle is very hot and flows from internal convection.
B) part of the mantle is hot enough to flow as a plastic solid.
C) the continental crust floats on the oceanic crust.
D) the mantle is below the crust.
Answer:
If one caisson of the Falkirk Wheel carries a boat loaded with Styrofoam and the other
carries a floating boat loaded with iron, the wheel would be
A) balanced.
B) out of balance.
C) unbalanced but still useful.
D) useless for lifting boats.
Answer:
The explanation for all types of refraction involves a change in
A) frequency.
B) period.
C) speed.
D) all of the above
E) none of the above
Answer:
Which of the following would be a negative ion with a single charge?
A) an atom with 11 protons and 12 electrons
B) an atom with 11 protons and 11 electrons
C) an atom with 12 protons and 11 electrons
D) an atom with 10 protons and 12 electrons
E) none of the above
Answer:
The flow of groundwater depends on
A) porosity only.
B) permeability only.
C) porosity and permeability.
D) hydraulic gradient, and hydraulic conductivity.
Answer:
Nebula that tend to be reddish in color are the
A) emission nebula.
B) reflection nebula.
C) dark nebula.
D) magenta nebula.
Answer:
When work is done by a system and heat is subtracted, the temperature of the system
A) increases.
B) decreases.
C) remains unchanged.
Answer:
Newton's second law focuses on
A) speed.
B) velocity.
C) acceleration.
D) none of the above
Answer:
When a boat sails from fresh water to salt water, the boat will float
A) lower in the water.
B) higher in the water.
C) at the same water level.
Answer:
