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Physics, Chemistry
10th -
12thgrade
Integrated Physics and Chemistry Final Exam Practice
96 questions
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- 1. Multiple ChoiceEnergy of a rock perched on a cliff is an example of...gravitationalelasticchemicalkinetic
- 2. Multiple ChoiceHow do you calculate power?P = W/tP = E/tP = w * tP = bbq/chicken
- 3. Multiple ChoiceHow much work is done by a motor that lifts a train car on El Toro to the top of a 70-meter hill using a force of 15,000 N?1,000,000 J214.29 J1,050,000 J105,000 J
- 4. Multiple ChoiceWhich combination of fundamental units can be used to express energy?kg * m^2/skg * m^2/s^2kg * m/skg * m/s^2
- 5. Multiple ChoiceA car travels at a constant speed v up a hill from point A to point B. As the car travels from A to B, its gravitational potential energyincreases and its kinetic energy remains the sameremains the same and its kinetic energy decreasesincreases and its kinetic energy decreasesremaines the same and its kinetic energy remains the same.
- 6. Multiple ChoiceWhile riding a chairlife, a 55 kg skier is raised a vertical distance of 370 m. What is the total change in the skier's gravitational potential energy?5.4 x 10^1 J5.4 X 10^2 J2.0 X 10^4 J2.0 X 10^5 J
- 7. Multiple ChoiceThe table below lists the mass and speed of four objects. Which two objects have the same KE?
Objects | Mass | Speed
A | 1.0 kg | 4.0 m/s
B | 2.0 kg | 2 .0 m/s
C | 0.5 kg | 4.0 m/s
D | 4.0 kg | 1.0 m/sA and CB and CA and DB and D - 8. Multiple ChoiceWhich graph best represents the relationship b/w gravitational PE and its height above the earth?1234
- 9. Multiple ChoiceStudent A lifts a 50. N box from the floor to a height of .40 meter in 2.0 seconds. Student B lifts a 40. N box from the floor to a height of .50 meter in 1.0 second. Compared to student A, student B doesmore work but develops less powerthe same work but develops more powerless work but develops more powerthe same work but develops less power
- 10. Multiple ChoiceA 60. kilogram student climbs a ladder a vertical distance of 4.0 meters in 8.0 seconds. Approximately how much total work is done against gravity by the student during the climb?2.4 x 10^3 J3.0 x 10^3 J2.9 x 10^2 J2.4 x 10^2 J
- 11. Multiple ChoiceEnergy from a compressed spring would be an example of...kineticelasticgravitationalchemical
- 12. Multiple ChoiceWhat is the formula for work?Force = work x distanceDistance = force x workWork = force x distanceWork = force x mass
- 13. Multiple Choice
A light plastic cart and a heavy steel cart are both pushed with the same force for a distance of 1.0 m, starting from rest. After the force is removed, the kinetic energy of the light plastic cart is ________ that of the heavy steel cart.
greater than
equal to
less than
can't say unless we know how big the force is
- 14. Multiple Choice
Rank in order, from largest to smallest, the gravitational potential energies of the balls.
1 > 2 = 4 > 3
1 > 2 > 3 > 4
3 > 2 = 4 > 1
3 > 2 > 4 > 1
- 15. Multiple Choice
Four students run up the stairs in the time shown. Which student has the largest power output?
A
B
C
D
- 16. Multiple ChoiceIf Nellie Newton pushes an object with twice the force for twice the distance, she does:The same workTwice the workFour times the workEight times the work
- 17. Multiple ChoiceA toy cart moves with kinetic energy of 40 J. What is its kinetic energy if the speed is doubled?100 J160 J400 J80 J
- 18. Multiple ChoiceA car that travels twice as fast as another when braking to a stop will skid:Twice as farFour times as farDepends on the mass of the cars
- 19. Multiple Choice
Maximum gravitational potential energy (choose all that apply)
A
B
C
D
- 20. Multiple Choice
Maximum kinetic energy (choose all that apply)
A
B
C
D
- 21. Multiple Choice
Two movers applied a total force of 350 N to push chest up a ramp into a truck. If the work that they did 1,400 J, calculate the height of the ramp?
4 m
3 m
2 m
1 m
- 22. Multiple Choice
If this person supplies 81.2 W of power and does 637 J of work to do 5 reps, how much time does he take to do 5 reps?
7.8 s
8.0 s
9.0 s
5.8 s
- 23. Multiple Choice
What are valence electrons?
The total number of electrons in an atom
The number of electrons in the outermost shell
The number of electrons in the second shell
The number of protons in the outermost shell
- 24. Multiple Choice
Which of the following is false about covalent bonds?
Forms by sharing electrons
Forms between 2 nonmetals
Represented by a line between atoms
Forms by transferring electrons
- 25. Multiple Choice
Which list of elements contains a metal, a metalloid, and a nonmetal?
Ag, Si, I2
Ge, As, Ne
K, Cu, Br2
S, Cl2 , Ar
- 26. Multiple Choice
Which diagram below shows the correct Lewis electron-dot diagram for a molecule PCl3?
- 27. Multiple Choice
Which statement is FALSE about the Lewis dot diagram in the picture?
Each line represents 2 shared electrons
Each line represents the bond between atoms
Nitrogen requires 3 covalent bonds
There are 14 valence electrons total being shared
- 28. Multiple Choice
What are the elements (Be, Mg, Ca,...) in group 2 called?
Alkali metals
Alkaline earth metals
Halogens
Nobel Gases
- 29. Multiple Choice
Which elements have the most similar chemical properties?
boron and carbon
oxygen and sulfur
aluminum and bromine
argon and silicon
- 30. Multiple Choice
How many pairs of electrons are shared between the nitrogen atoms in a molecule of N2?
1
2
3
6
- 31. Multiple ChoiceIn CO2, how many UNSHARED pairs of electrons does each oxygen have?2146
- 32. Multiple ChoiceHow many electrons should Carbon have around its Lewis dot model?1345
- 33. Multiple ChoiceThis is a correct dot diagram for oxygen (O)truefalse
- 34. Multiple ChoiceWhich of the following is the correct Lewis dot structure for the molecule fluorine (F2)?ABCD
- 35. Multiple ChoiceWhat is the correct formula for this molecule?Si4FSiF4SiFSi4F4
- 36. Multiple ChoiceWhat is the atomic mass of Neon?1020.1810.1830.18
- 37. Multiple ChoiceWhich of the subatomic particles is the lightestall have the same massprotonsneutronselectrons
- 38. Multiple ChoiceWhat do these isotopes of carbon all have in common?neutrons & mass numberatomic number and neutronsatomic number and electronsprotons, atomic number, and mass number
- 39. Multiple ChoiceWhat quantities vary between isotopes of an element?protons, electrons, and atomic massprotons, electrons, and atomic numberneutrons and electronsneutrons and atomic mass
- 40. Multiple Choice
A proton has a _________ charge.
Negative
Neutral
Positive
Positive & Neutral
- 41. Multiple Choice
A subscript is a
number below and to the right of a chemical symbol
number in front of a chemical symbol
a shorthand way to represent a compound
force that holds atoms together
- 42. Multiple ChoiceIs this a correct representation of the Bohr Model for Sodium (Na)?noyes
- 43. Multiple ChoiceWhat is the standard unit of mass at the atomic level?centimetersmillimetersamumilligrams
- 44. Multiple ChoiceAs atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element....decreasesincreasesremains the samenone of the above
- 45. Multiple ChoiceWhich is larger:
Ca or Ca2+CaCa+2both are same sizeimpossible to determine - 46. Multiple ChoiceWhich of the following elements has the GREATEST electronegativity?ClAsZnNa
- 47. Multiple ChoiceAs you move across the periodic table atoms tend to get smaller because, ______________.the atoms have more mass.the atoms have less massthe atoms have more protons.the atoms have less electrons.
- 48. Multiple ChoiceAtoms that have a high electronegativity, _______________.give up their electrons more easily.hold on to their electrons more tightly.have more electron shells.
- 49. Multiple ChoiceIonization energy is...the energy required to add an electron to a specific atomhow much energy it takes to remove an electron from an atomthe energy required to shield the outer electrons from the nucleusa measure of the ability of an atom to attract electrons
- 50. Multiple ChoiceElectronegativity __________ from left to right within a period and __________ from top to bottom within a group.decreases, increasesincreases, increasesincreases, decreasesstays the same, increases
- 51. Multiple ChoiceWhich metal on the periodic table is the most reactive?CuFeRbFr
- 52. Multiple ChoiceFluorine is the most reactive nonmetal.truefalse
- 53. Multiple ChoiceWhich of the following sets of elements are arranged in order of INCREASING metallic radii?Cs < Ba < La < Hf < TaAl < Si < P < S < ClBe < Mg < Ca < Sr < BaRb < K < Na < Li < H
- 54. Multiple ChoiceWhich of the following have properties of both metals and nonmetals?C, Si, Ge, Sn, PbNa, Mg, Al, Si, PAl, B, N, S, PSi, Ge, B, As, Sb
- 55. Multiple ChoiceGroup 13 (3A) elements tend to most often acquire which charge when they form ions?-3+5+3-5
- 56. Multiple ChoiceIn which pair is the one on the left larger than the one on the right?Na, RbS, MgBr, Br-K, K+
- 57. Multiple ChoiceThe more protons there are, the ____ .Weaker the pullSmaller the electronsStronger the pullThe bigger the electrons
- 58. Multiple Choice
Which of these has the greatest ionic radius?
potassium
aluminum
carbon
oxygen
- 59. Multiple ChoiceThe simplest substance is..?CarbonAn elementWaterA simple compound
- 60. Multiple ChoiceWhat does the atomic mass tell you?Basically,the number of electrons and protonsThe number of neutronsBasically, the number of protons and neutronsThe number of protons.
- 61. Multiple ChoiceDoes an increase in LDF's (London Dispersion Forces) make it more or less difficult to separate noble gases and does it increase or decrease their boiling points?more; increaseless; increaseless; decreasemore; decrease
- 62. Multiple ChoiceThe occurrence of hydrogen bonds has two important consequences...(1) It gives substances containing them unusually high boiling points (2) Hydrogen bonds can only be formed with K, O, B, C, and N atoms.(1) It gives substances containing them unusually low boiling points (2) substances containing them tend to be less viscous(1) It gies substances containing them unusually low boiling points (2) Hydrogen bonds can only be formed with K, O, B, C, and N atoms.(1) It gives substances containing them unusually high boiling points (2) Substances containing them tend to be more viscous.
- 63. Multiple ChoiceWhich type of force is this?HydrogenIntramolecularIntermolecularOxygen
- 64. Multiple ChoiceWhat type of interaction does this represent?non-polar covalentdipoledipole-dipolenone that I know of
- 65. Multiple Choice
What type of interaction does this represent?
dipole-dipole
none that I know of
non-polar covalent
dipole of a hydrogen bond
- 66. Multiple ChoiceWhat are intermolecular forces?forces of attraction or repulsion which act between neighboring particlesforces which keep a molecule together.forces which keep electrons togetherforces of attraction or repulsion which act between neighboring electrons
- 67. Multiple ChoiceIs interbonding generally stronger or weaker than intrabondingStrongerWeaker
- 68. Multiple ChoiceH2S has what kind of intermolecular force?dipole dipoledispersionH-bondionic
- 69. Multiple ChoiceIntermolecular force present in HCl?dipole dipoledispersionH-bondionic
- 70. Multiple ChoiceWhich type of bond has an unequal sharing of electrons?Polar CovalentNon Polar CovalentIonicMetallic
- 71. Multiple ChoiceWhich type of bond has an equal sharing of electrons?Polar CovalentNon Polar CovalentIonicMetallic
- 72. Multiple Choice
Which type of bond creates a "sea" of electrons between atoms?
Ionic Bonds
Covalent Bonds
Metallic Bonds
Saving Bonds
- 73. Multiple ChoiceWhat information do we look for on the periodic table if we want to examine intermolecular forces?atomic massatomic numberelectronegativityionization
- 74. Multiple Choice
Which substance would have the weakest intermolecular forces of attraction?
CH4
NaCl
H2O
MgF2
- 75. Multiple ChoiceWhich formula represents a nonpolar molecule?HBrH2SCBr4PCl3
- 76. Multiple Choice
Polarity of a molecule is determined by (Hint: EN = Electronegativity)
shape and charge
symmetry/asymmetry of molecule and difference in EN value
difference in EN value and size
difference in EN value and charges
- 77. Multiple ChoiceThe transfer of thermal energy between objects of different temperatures is called...temperatureheatinternal energynone of these
- 78. Multiple ChoiceThermal energy always moves:From a high temperature object to a lower temperature object.From a lower temperature object to a higher temperature object.From an object with lower kinetic energy to an object with higher kinetic energy.From an object of higher mass to an object of lower mass.
- 79. Multiple Choice
Heat is measured in
joules
grams
degrees Celsius
degrees Farenheit
- 80. Multiple ChoiceThe specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams?12.82 °C24.12°C351 °C
- 81. Multiple ChoiceH2 + 2 C + N2 + 270.3 kJ --> 2 HCN
Is this reaction endothermic or exothermic?EndothermicExothermic - 82. Multiple Choice
What is the definition of temperature?
Sum of all the kinetic energies of the particles within a substance
Average of all the kinetic energies of the particles within a substance
Sum of all the potential energies of the particles within a substance
Average of all the potential energies of the particles within a substance
- 83. Multiple ChoiceFor the formula:
Q= m c ∆T
The units for specific heat are:g /J C°C/g JkJ/gJ/g°C - 84. Multiple Choice
The specific heat of water is 4.18 J/g°C.
If 980. J of energy is added to 6.20 g of water at 18.0 °C, what is the final temperature of the water?
37.8 °C
-19.8 °C
19.8 °C
55.8 °C
- 85. Multiple ChoiceN2 + 3H2 −-> 2NH3
How many moles of ammonium are produced when 3 moles of nitrogen react with hydrogen?6 moles Ammonium1.5 moles ammonium9 moles ammonium9 moles hydrogen - 86. Multiple ChoiceC+ O2 --> CO2 + 60kJ, what is the value for ΔH for the reaction?+60-60there is no way to know
- 87. Multiple ChoiceWater has a specific heat of 4184 J/KgºC. Wood has a specific heat of 1760 J/KgºC. What material needs more energy to raise the temperature 1ºCWoodWaterBoth are the same
- 88. Multiple ChoiceWhen ammonium nitrate dissolves in water, the solution gets cold. Which is true?Reaction is ENDOTHERMIC with positive ΔHReaction is ENDOTHERMIC with -ΔHReaction is EXOTHERMIC with a -ΔHReaction is EXOTHERMIC with +ΔH
- 89. Multiple Choice
A student conducts an experiment to determine the specific heat of a substance. The student uses a water bath to increase the temperature of a metal by 250C. He then placed the metal in a cup with 100 mL of water and the temperature of the water rose by 100C. If the metal had a mass of 29 grams, what is the specific heat of the metal?
2.535 J/g0C
4184 J/g0C
1.650 J/g0C
5.77 J/g0C
- 90. Multiple ChoiceSpecific heat capacity isheat energy needed to raise temp by 1Cheat energy needed to raise temp of 1g of substance by 1Cheat energy absorb to raise 1g of substance to higher tempheat energy need to raise temp for 1g of substance
- 91. Multiple ChoiceWhich statement is true regarding endothermic reactions?a) Temperature change is positive and enthalpy change is positiveb) Temperature change is positive and enthalpy change is negativec) Temperature change is negative and enthalpy change is positived) Temperature change is negative and enthalpy change is negative
- 92. Multiple ChoiceDefine 'Enthalpy'a) Energy stored in the movement of molecules in a substanceb) The opposite of temperaturec) The temperature of a moleculed) Energy stored in the chemical bonds in a substance
- 93. Multiple ChoiceDescribe the energy change that takes place when bonds are broken.a) Energy is given outb) Energy is taken inc) Energy is taken in and then given outd) Energy is given out and then taken in
- 94. Multiple Choice
Which is an example of an endothermic physical change?
a) Ice melting
b) Combustion
c) Steam condensing
d) Photosynthesis
- 95. Multiple ChoiceDo reactants in an endothermic reaction have a higher or lower energy than the products?HigherLower
- 96. Multiple ChoiceIf ΔH is positive, heat would be shown on the _____ side of the thermochemical equation.ReactantProduct
- Answer choicesTagsAnswer choicesTags