Unlock document.
This document is partially blurred.
Unlock all pages and 1 million more documents.
Get Access
The absorption of an infrared photon that excites an atom to emit a green photon
A) occurs in plants.
B) occurs in the process of phosphorescence.
C) would violate the law of energy conservation.
D) all of the above
E) none of the above
You shine a beam of monochromatic light from Earth to an astronaut friend in orbit.
The light your friend receives, relative to light from an equivalent source on the
spaceship, is slightly
A) lower in frequency.
B) higher in frequency.
C) weaker but no different in frequency.
When you step on a weighing scale at noon, Earth pulls you downward and the
overhead Sun pulls you upward. The reason the Sun's pull doesn't decrease your weight
at noon is because
A) the Sun's pull on you is negligibly small.
B) the weighing scale is calibrated only in Earth weight.
C) you, the scale, and Earth are in free fall (in orbit) around the Sun.
D) the Sun's pull is cancelled by the gravitation of other celestial bodies.
E) of tidal effects in the "solid" Earth.
Neglecting air resistance, a bullet fired straight down from the top of a high cliff has an
acceleration of
A) less than 10 m/s2.
B) 10 m/s2.
C) more than 10 m/s2.
D) depends on the height of the cliff.
A pair of equal-length vectors at right angles to each other have a resultant. If the angle
between the vectors is greater than 90o, their resultant is
A) less.
B) the same.
C) greater.
The moderate temperatures of islands throughout the world has much to do with water's
A) good conductivity.
B) vast supply of internal energy.
C) high specific heat capacity.
D) high evaporation rate.
E) absorption of solar energy.
Interference is a property of
A) light waves.
B) sound waves.
C) water waves.
D) all of the above
E) none of the above
In the electron-wave model of the atom, the orbit of an electron in the ground state
contains
A) a single wavelength.
B) multiple wavelengths.
C) even number quanta.
The concept of force is fundamental to
A) Newton's theory of gravitation.
B) Einstein's theory of gravitation.
C) both of these
D) neither of these
The conservation of energy applies to satellites in
A) circular orbit.
B) elliptical orbit.
C) both of these
D) neither of these
The pressure in a liquid depends on liquid
A) density.
B) depth.
C) both of these
D) neither of these
In comparison with other fundamental forces, the universal gravitational constant G
indicates that gravity is
A) very weak.
B) strong.
C) very strong.
The frequencies needed to reproduce high-quality sounds are
A) within the range of hearing.
B) beyond the range of hearing.
C) centered about 2000 hertz.
D) none of the above
A karate chop is more effective if one's hand
A) follows through upon impact.
B) bounces upon impact.
C) extends the time upon impact.
The kind of molecular motion that mostly relates to the temperature of a substance is
A) translational motion.
B) rotational motion.
C) vibrational motion.
D) all about equally
Musical tones are characterized by
A) pitch.
B) loudness.
C) quality.
D) all of the above
E) none of the above
Our Moon in Earth orbit travels fastest when it is
A) involved in an eclipse.
B) rotating.
C) revolving.
D) closest.
E) all of the above
Compared to the volume of a kilogram of feathers, the volume of a kilogram of lead is
A) less.
B) more.
C) the same.
According to your textbook, popular confusion is lessened when applying Heisenberg's
uncertainty principle by heeding the distinction between
A) momentum and energy.
B) energy and time.
C) passive observation and probing.
An isotope is simply an atom that
A) is electrically charged.
B) has different numbers of neutrons for the same element.
C) both of these
D) neither of these
How many octaves exist between 40 hertz and 1280 hertz?
A) 5
B) 6
C) 7
D) 8
E) 9
When the nucleus of an atom emits an alpha particle, the atom's atomic number
A) decreases.
B) remains unchanged.
C) increases.
The Doppler effect is characteristic of
A) water waves.
B) sound waves.
C) light waves.
D) all of the above
E) none of the above
Phil stands at rest with both feet on a scale that reads 500 N. When he gently lifts one
foot, the scale reads
A) less than 500 N.
B) 500 N.
C) more than 500 N.
In mountain regions, food cooked in boiling water cooks slower than when cooked at
sea level. If the temperature beneath the pot of boiling water is increased, the food will
cook
A) faster.
B) slower still.
C) both of these
D) neither of these
Fourier analysis is something accomplished
A) with all musical instruments.
B) automatically by humans.
C) both of these
D) neither of these
In both fission and fusion, mass
A) is created from energy of other forms.
B) converts to kinetic energy.
C) converts to gamma radiation.
D) remains the same.
Lillian safely touches a 100,000-volt Van de Graaff generator. Although the voltage is
high, the relatively small amount of charge means a relatively small amount of
A) energy transfer.
B) electric field.
C) polarization.
D) conduction.
Disconnect a small-voltage battery from a coil of many loops of wire and a large
voltage may be produced by
A) the sudden collapse in the magnetic field.
B) latent energy in the battery.
C) the resistance of the battery to a change in polarity.
D) electrons already in the wire.
E) the electric field between the battery terminals.
The circumference of a bicycle wheel is 2 meters. If it rotates at 1 revolution per second
then its linear speed is
A) 1 m/s.
B) 2 m/s.
C) 3 m/s.
D) 3.14 m/s.
E) 6.28 m/s.
Which of the following cannot travel in a vacuum?
A) a light wave
B) a sound wave
C) a radio wave
D) all can
E) none can
Neon atoms in a glass tube can be excited
A) once per atom.
B) repeatedly.
C) by infrared light.
As a blinking light source uniformly accelerates away from you, you observe the blinks
A) more and more frequently.
B) less and less frequently.
C) neither of these
The amount of light reflected from the front surface of a common windowpane is about
A) 4%.
B) 8%.
C) 40%.
D) 92%.
E) 96%.
