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Unit 1 - Periodic Motion and Wave Mechanics

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Lesson 1 Quiz: Oscillatory Motion and Wave Mechanics

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1.
Solid ionic compounds such as crystal NaCl do NOT conduct electricity in the solid state because:
Electrons are moving too rapidly
They decompose in the presence of air
Their ions are tightly locked in fixed positions within the rigid crystal lattice and cannot move freely
They contain no electrical charges
2.
Absolute zero temperature (0 Kelvin or -273.15 °C) is defined physically as the theoretical temperature at which:
Atmospheric air completely combusts
The volume and pressure of an ideal gas theoretically extrapolate to zero and translational molecular motion reaches its quantum minimum
All liquids solidify into glass
Water reaches its maximum density
3.
Pascal's principle states that when pressure is applied to an enclosed, incompressible fluid, it is transmitted:
Only downwards towards the bottom of the vessel
Undiminished to every portion of the fluid and to the walls of the containing vessel
Strictly to compressible gases
With an exponential decay as distance increases
4.
The sum of the first 10 terms of the geometric sequence 2, 6, 18, 54, ... equals:
19,682
29,524
118,096
59,048
5.
The fetal membrane that directly surrounds the fetus and secretes a fluid that protects it from shock and dehydration and facilitates its movement is:
Plasma membrane
Amniotic membrane (Chorion)
Amnion
Vitelline membrane
6.
Real gases behave most closely to an ideal gas under conditions of:
High pressure and near liquefaction point
Zero gravitational acceleration
Extremely high pressure and low temperature
Very low pressure and high temperature (where intermolecular attraction forces and molecular volumes become negligible)
7.
The universal gas constant R in SI units has the numerical value and dimensions of:
6.022 x 1023 J / K
0.0821 J / mol
8.314 J / (mol . K)
1.38 x 10−23 Pa . m3
8.
When dry chlorine gas is passed over red-hot iron filings, iron(III) chloride (FeCl3) is exclusively formed rather than iron(II) chloride because:
Chlorine gas is a powerful oxidizing agent that readily oxidizes any formed Fe2+ to Fe3+
Iron(II) chloride spontaneously sublimes into thin air
Chlorine cannot react with the inner 3d electrons
The reaction occurs strictly in an alkaline medium
9.
The common ratio r of the geometric sequence (64, 32, 16, 8, ...) is:
r = 2
r = -1/2
r = 4
r = 1/2
10.
Electric buses and monorails produce zero exhaust fumes, making them ________ forms of transport.
noisy
dangerous
eco-friendly
polluting
11.
A metallic bond is physically described as the electrostatic attraction between:
Positive ions and negative non-metal anions
Protons and neutrons in the nucleus
Positive metal cations in the crystal lattice and the mobile sea of delocalized valence electrons
Dipole molecules in a polar liquid
12.
The atomic radii of the elements from Chromium to Copper remain remarkably steady and nearly constant across the first transition series because of:
The sudden increase in atomic mass
The identical number of neutrons in their nuclei
Decreasing ionization energies
The mutual compensation between the increasing nuclear charge and the repulsive forces among accumulated 3d electrons
13.
Which of the following oxides is classified as an amphoteric oxide that reacts with both acids and bases to yield salt and water?
Sodium oxide (Na2O)
Sulfur trioxide (SO3)
Aluminum oxide (Al2O3)
Carbon dioxide (CO2)
14.
Phenolphthalein indicator cannot distinguish between an acidic solution and a neutral solution because:
It is red in both
It is colorless in both
It is blue in both
It precipitates in both
15.
A fixed quantity of an ideal gas has a volume of 600 cm3 at 27 °C. If the gas is heated to 127 °C under constant pressure, its new volume will be:
900 cm3
800 cm3
1200 cm3
700 cm3
16.
The pressure of a gas trapped inside an incandescent light bulb is 0.8 atm at room temperature (27 °C). When the bulb operates, the filament heats the gas to 327 °C at constant volume. The operational pressure is:
2.4 atm
0.96 atm
1.2 atm
1.6 atm
17.
To distinguish between a white precipitate of barium sulfate (BaSO4) and a white precipitate of barium phosphate (Ba3(PO4)2), one should add:
Concentrated nitric acid in the dark
Dilute hydrochloric acid (Ba3(PO4)2 dissolves while BaSO4 remains insoluble)
Ammonium hydroxide solution
Boiling distilled water
18.
Magnetic iron oxide (Magnetite, Fe3O4) is chemically considered a mixed oxide because reacting it with hot concentrated sulfuric acid yields:
A mixture of iron(II) sulfate, iron(III) sulfate, and water vapor
Iron(III) sulfate only
Iron(II) sulfate and hydrogen gas only
Elemental iron and sulfur dioxide
19.
The phenomenon of natural parthenogenesis in honey bees results in:
Female workers only
Bees are always male, and their somatic cells are haploid (1N) resulting from an unfertilized egg that grows mitotically.
Diploid males
Fertile queens (2N)
20.
Which of the following alloys is classified as an interstitial alloy?
Stainless steel (Iron, Chromium, and Nickel)
Carbon steel (Iron and Carbon where small carbon atoms occupy interstitial voids)
Brass (Copper and Zinc)
Duralumin (Aluminum and Copper)
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