Different colors of light correspond to different light
A) velocities.
B) intensities.
C) polarities.
D) frequencies.
E) none of the above
Answer:
When Jean standing on slippery ice catches her leaping dog Daisy, the momentum of
both Jean and Daisy after the catch is
A) greater than their combined momentum before the catch.
B) equal to their combined momentum before the catch.
C) somewhat less than their combined momentum before the catch.
Answer:
How many covalent bonds would the following atom usually form?
A) 1
B) 2
C) 4
D) 6
E) It would tend to form ionic bonds.
Answer:
Magenta light is a mixture of
A) red and blue light.
B) red and cyan light.
C) red and yellow light.
D) yellow and green light.
E) none of the above
Answer:
If a projectile is fired straight up at a speed of 10 m/s, neglecting air resistance, the total
time to return to its starting position is
A) 1 s.
B) 2 s.
C) 10 s.
D) 20 s.
E) not enough information
Answer:
In a delta environment the first grains to settle are
A) light, fine-grained sediment.
B) heavier, coarse-grained sediment.
C) light, medium-grained sediment.
D) heavy and light mixed grains.
Answer:
The following image describes what type of change?
A) a chemical change
B) a physical change
C) a change in state
D) no change
E) an elemental change
Answer:
Compared to most stellar objects, quasars are more
A) distant.
B) energetic.
C) puzzling.
D) all of these
E) none of these
Answer:
The black fur of a black-and-white bunny is due to light
A) absorption.
B) reflection.
C) refraction.
D) scattering.
Answer:
Which of the following molecules contains an ionic bond?
A) MgCl2
B) Cl2
C) SF3
D) PO4
-3
E) none of the above
Answer:
Short wavelength radiant energy is emitted by
A) relatively cooler sources, like Earth.
B) relatively cooler sources, like the Moon.
C) relatively hotter sources, like the Sun.
D) none of the above
Answer:
Which of the following is not a typical use for potable water?
A) irrigation
B) cooking in a pot
C) flushing a toilet
D) drinking
E) boiling
Answer:
The increase of atmospheric CO2 levels to 400 ppm has tipped Earth’s natural
greenhouse effect toward global warming. The rise of CO2 is due to
A) human activitythe burning of fossil fuels (coal, oil, and gas) and deforestation.
B) human activityoverpopulation and increased reliance on solar energy.
C) human negligenceefforts of not recycling waste materials for potential reuse.
D) the industrial revolution and increased cloud cover.
Answer:
Colors seen on TV result from color
A) addition.
B) subtraction.
C) either of these
D) none of the above
Answer:
Water evaporated from over the oceans produces precipitation of fresh water because
A) there are more water molecules than salt molecules in the ocean.
B) the salt dissolves and forms a solution, which becomes more and more dilute until
all the water is fresh.
C) the salt dissolves in the air.
D) only water vapor molecules, and not salt molecules, evaporate.
Answer:
Beautiful cone-shaped volcanoes such as Mt. Fuji, Mt. Hood, and Mt. Rainer are
predominantly composed of
A) basaltic rocks.
B) andesitic rocks.
C) granitic rocks.
Answer:
What normally occurs in a saucer of water placed on your table is
A) evaporation.
B) condensation.
C) both of these
D) none of the above
Answer:
A negatively-charged balloon touching a wooden wall
A) pulls positive charge on the wall surface toward it.
B) pushes negative charge in the wall away from it.
C) polarizes molecules in the wall.
D) all of the above
E) none of the above
Answer:
Two charged particles 1 m apart exert a 1-N force on each other. If the magnitude of
each charge is doubled, the force on each particle will be
A) 1 N.
B) 2 N.
C) 4 N.
D) 8 N.
E) none of the above
Answer:
When a hydronium ion concentration equals 1 moles per liter, what is the pH of
the solution? Is the solution acidic or basic?
A) The pH is of this solution is 4 and it is acidic.
B) The pH is of this solution is 8 and it is basic.
C) The pH is of this solution is 6 and it is acidic.
D) The pH is of this solution is 10 and it is basic.
Answer:
How are oxygen molecules attracted to water molecules?
A) The attraction between oxygen and water molecules is a classic example of
dipole-dipole interaction.
B) The hydrogen bonding in water causes the attraction of the oxygen atoms in the
molecule to water.
C) As a water molecule is brought close to an oxygen molecule an induced dipole
results in the molecule causing the attraction.
D) The attraction of oxygen and water molecules for one another is part of the common
atom effect. Since both molecules contain oxygen, there is a built-in attraction.
Answer:
If Burl carried Paul piggy-back while standing in the middle of a scaffold, the tensions
in the two supporting ropes would
A) cancel to zero.
B) be equal.
C) be unequal.
D) more easily support Burl and Paul.
Answer:
What is the mass of an oxygen atom, O, in atomic mass units?
A) 12 amu
B) 16 amu
C) 18 amu
D) 32 amu
Answer:
Stream velocity is faster in a
A) flat bottomed, shallow stream channel.
B) rounded, relatively deep stream channel.
C) stream with a very steep gradient.
D) canyon.
Answer:
The electric force between charges depends on the
A) magnitude of electric charges.
B) separation distance between electric charges.
C) both of these
D) none of the above
Answer:
Laminar flow produces
A) a stream carrying both large and small particles.
B) a stream carrying large particles.
C) clear streams.
D) less erosion.
Answer:
The supercontinent of Pangaea formed during the
A) Cenozoic.
B) Paleozoic.
C) Mesozoic.
D) Precambrian.
Answer:
If you remove two protons and two electrons from a sulfur atom (S), what new element
is formed?
A) Si
B) Si+2
C) Al+2
D) Al
E) Ar-2
Answer:
The Big Rip refers to the
A) accelerating influence of dark energy, causing all matter to become completely
ripped apart.
B) phenomenon of dark energy causing the universe to rip into multiple spacetimes.
C) possibility that galactic centers may suddenly implode causing galactic
disintegration.
D) phenomenon of dark energy decelerating, causing all matter to disintegrate.
Answer:
Sodium metal is
A) oxidized in the production of aluminum.
B) reduced in the production of aluminum.
C) both oxidized and reduced in the production of aluminum.
D) neither oxidized nor reduced in the production of aluminum.
Answer:
When ice crystals form in clouds, the surrounding air
A) warms.
B) cools.
C) neither of these
Answer:
High-pitched sound has a high
A) speed.
B) rate of vibration.
C) both of these
D) neither of these
Answer:
A player catches a ball. Consider the action force to be the ball against the player’s
glove. The reaction is the
A) player’s grip on the glove.
B) force of the glove on the ball.
C) friction of the ground against the player’s shoes.
D) muscular effort in the player’s arms.
E) none of the above
Answer:
The phenomenon of beats results from sound
A) refraction.
B) reflection.
C) interference.
D) all of the above
E) none of the above
Answer: