PHYSICS 32348

subject Type Homework Help
subject Pages 12
subject Words 1341
subject Authors Charles A. Higgins, James Shipman, Jerry D. Wilson

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page-pf1
Earth's axis completes a precession every
A) 25,800 years.
B) 30 days.
C) day.
D) 365 days.
The lowest energy level of a hydrogen atom (n= 1) is called
A) the ground state.
B) the potential state.
C) the ionization state.
D) none of these.
Newton's third law of motion states that the force pair acting on different objects
consists of two forces that
A) are under the influence of gravity.
B) are equal and in the same direction.
C) always produce an acceleration.
D) are equal and in opposite directions.
page-pf2
Any naturally occurring, inorganic, crystalline substance with a fairly definite chemical
composition is called a(n)
A) element.
B) compound.
C) rock.
D) mineral.
How many covalent bonds would be formed by an atom of each of the following
elements?
a. C
b. H
c. F
d. Ne
page-pf3
Dispersing light from a gas-discharge tube produces what type of spectrum?
A) Ultraviolet
B) Line absorption
C) Continuous
D) Line emission
Compound A is a liquid and compound B is a solid. Which statement is justified?
A) Compound A is covalent; compound B is ionic.
B) Compound A is ionic; compound B is covalent.
C) Compound A could be ionic or covalent; compound B is ionic.
D) Compound A is covalent; compound B could be ionic or covalent.
page-pf4
Magnetism results from
A) the movement of magnetic particles.
B) the movement of electric charge.
C) Earth's magnetic field.
D) the movement of magnetic charge.
The Mohorovicic discontinuity is the boundary between
A) the lithosphere and the asthenosphere.
B) the crust and the mantle.
C) the outer core and the inner core.
D) the mantle and the outer core.
Density describes
A) mass per unit volume.
B) length per unit time.
C) volume per liter.
D) weight per mass.
page-pf5
A car is moving down a freeway in a straight line at a constant rate of 24.0 m/s for 4.0 s.
Its acceleration is
A) 9.8 m/s2.
B) 9.8 m/s.
C) zero.
D) 24.0 m/s.
E) 6.0 m/s2.
The pollutant primarily responsible for acid rain is
A) NO2.
B) CO2.
C) O3.
D) SO2.
page-pf6
A quantum of electromagnetic radiation is called a(n)
A) photon.
B) electron.
C) positron.
D) proton.
Which of the following is a chemical change?
A) Dry ice subliming
B) Limestone being crushed to powder
C) Paper being shredded
D) Sulfur burning
page-pf7
The study of minerals is called
A) paleontology.
B) geology.
C) mineralogy.
D) petrology.
If a wave has a frequency of 12 Hz, it has a period of
A) 1/12 s.
B) 3.5s.
C) 144 s.
D) 12 s.
Another name applied to the grain size in a rock is
A) specific gravity.
B) porosity.
C) texture.
D) streak.
page-pf8
A system of 8 electrons and 4 neutrons has a net charge of
A) "12.8 x 10-19 C.
B) 12.8 x 10-19 C.
C) "6.4 x 10-19 C.
D) "8.0 x 10-19 C.
E) 6.4 x 10-19 C.
Alfred Wegener postulated that the continents were once part of a single supercontinent
that he called ______________.
A) Pangaea
B) Africasia
C) Amerasia
D) Atlantis
page-pf9
Matter waves were confirmed when it was found that electrons
A) diffract.
B) have a plus or minus spin quantum number.
C) possess a negative charge.
D) have mass.
In what year did the United States officially adopt the metric system?
A) 1893
B) 1995
C) 2011
D) 1776
E) none of these
An object that is negatively charged will
A) repel a rubber rod stroked with fur.
B) repel a glass rod stroked with silk.
C) be polarized.
page-pfa
D) none of these
A temperature of degrees 245 Fahrenheit is equivalent to _____ degrees Celsius.
A) "18.4
B) 473.0
C) 118.3
D) "28.0
The two types of bright nebulae are emission nebulae and _______________ nebulae.
A) photonic
B) absorption
C) refraction
D) reflection
page-pfb
When the equation Sb2S3+ HCl SbCl3+ H2S is balanced, the coefficient of
HCl is
A) 1.
B) 6.
C) 2.
D) 4.
An object will ______________ in a fluid if its average density is ______________ the
density of the fluid.
A) float; greater than
B) float; less than
C) sink; less than
D) sink; equal to
According to today's classification system, how many major planets are there in the
solar system?
A) 10
page-pfc
B) 9
C) 8
D) 11
What electric charge is characteristic for an ion of S?
A) 6+
B) 0
C) 2"
D) 2+
Mouthwash is a good example of
A) a compound.
B) a heterogeneous mixture.
C) a homogeneous mixture.
D) an element.
page-pfd
Wave amplitude is related to
A) wave velocity.
B) frequency.
C) energy.
D) wavelength.
How many times greater is the speed of infrared light (
= 800 nm) than the speed of
violet light (
= 400 nm) in a vacuum?
A) 2
B) 1/2
C) 400
D) 1; that is, both have the same speed.
The horizontal rows of elements in the periodic table are called
A) periods.
page-pfe
B) groups.
C) families.
D) series.
Calculate the radius in nanometers of the Bohr orbit of a hydrogen atom's electron with
n= 6.
A constant volume and mass of helium gas at 27°C is heated so that the pressure of the
gas doubles. What is the new temperature of the gas in Celsius degrees?
A student's height is 180 cm. Determine that student's height in inches.
page-pff
Carbon dating was used to establish the age of the Shroud of ______________.
When the equation Ca + H3PO4Ca3(PO4)2+ H2is balanced, the sum of all the
coefficients (both written and "understood") is ______________.
Homogeneous mixtures are those mixtures that have variable but ______________
composition.
page-pf10
The asthenosphere is the region of Earth directly below the ______________.
In the early 1900s, a scientist named ______________ revived the idea of continental
drift.
During the approach of a severe thunderstorm, workers on a project see lightning and
then hear the resulting thunder 5.0 s later. How far away, in kilometers, is the storm?
To what temperature does 0F correspond on the Celsius scale?
page-pf11
The mountains of the Alps in Europe are examples of ______________ mountains.
Orthoclase and plagioclase are the two major types of _____________.
The San Andreas fault lies on the boundary of the Pacific plate and the ____________
plate.
page-pf12
When a jet plane exceeds the speed of sound, a(n) ______________ forms, resulting in
a sonic boom.

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