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- 1. Multiple ChoiceThe charge of a proton in an atom.positivenegativeneutral-1
- 2. Multiple ChoiceThe charge of a neutron in an atom.positivenegativeneutral+1
- 3. Multiple ChoiceThe location of the protons and neutrons in an atom.cloudringsnucleus
- 4. Multiple ChoiceThe negatively charged particles found in the cloud.protonsneutronselectronsquarks
- 5. Multiple ChoiceUsing the mass from the periodic table, how would you calculate the number of neutrons?protons x 2protons divided by 2mass + protonsmass - protons
- 6. Multiple ChoiceHow many protons in Sulfur - 35?35165119
- 7. Multiple ChoiceWhat is the mass of Carbon - 14?14678
- 8. Multiple ChoiceIsotopes of an element have the same mass number but different atomic numbers because they contain a different number of protons?TrueFalse
- 9. Multiple ChoiceThomson nicknamed his model the:Planetary Orbit ModelPlum Pudding ModelBohr ModelCloud Model
- 10. Multiple ChoiceAlmost all the mass of an atom is located in itsprotonsneutronselectron cloudnucleus
- 11. Multiple Choice
What is the number of protons that the element in this image contain?1471518 - 12. Multiple ChoiceWhat is the atomic mass of "F"9181719
- 13. Multiple ChoiceWhat is the atomic symbol for sodium?NaSoNaClS
- 14. Multiple ChoiceWhat is the number of protons that the element in this image contain?1471518
- 15. Multiple ChoiceWhen naming ionic compounds you always write the name of the positive element _______ .firstsecondwith "ide"with a prefix
- 16. Multiple ChoiceIn most cases, when naming you change the ending of the second element to ________.-ate.-ite.-ide.-ine.
- 17. Multiple ChoiceThis rule says that all atoms want a full outer orbital.pentet rulehextet ruleoctet rulequartet rule
- 18. Multiple ChoiceMgF2magnesium fluoridemanganese Phosphidemagnesium(III) fluoridemagnesium fluoride(II)
- 19. Multiple ChoiceWhat is the formula for calcium phosphide?CaPCa2P3Ca3P2Ca2P
- 20. Multiple ChoiceWhich of the following has six valence electrons?SodiumIodineOxygenNeon
- 21. Multiple ChoicePhosphorous trichloridePCl3P3ClP3Cl3PCL
- 22. Multiple ChoiceDisulfur trioxideS3O2SOS2O3S2O
- 23. Multiple ChoiceP2O5Phosphorus OxidePentaphosphorus DioxideDiphosphorous pentoxidePhosphoric Oxygen
- 24. Multiple ChoiceCOCarbon OxideCarbon OxygenDicarbon dioxideCarbon Monoxide
- 25. Multiple ChoicePBr5Phosphorus BromidePhosphorus PentabromidePentaphosphorus bromidePhosphorus Bromine
- 26. Multiple ChoiceWhat is the name of Ca(NO3)2calcium nitritecalcium II nitratecalcium nitratecarbon nitrate
- 27. Multiple ChoiceWhat is the name of the compound with the formula FePO4?iron phosphateiron (II) phosphateiron (IV) phosphateiron (III) phosphate
- 28. Multiple ChoiceWhat kind of bond forms when atoms share electrons?Chemical bondIonic bondCovalent bondElectron bond
- 29. Multiple ChoiceWhat type of ionic compounds have the roman numeral?Non-covalent compoundsWithout transition metalsCovalent compoundsWith transition metals
- 30. Multiple ChoiceName the following compound:
BF3boron fluorideboron difluoridemonoboron trifluorideboron trifluoride - 31. Multiple Choicewhat is the name of CCl4?carbon tetrachloridemonocarbon tetrachloridetetracarbon monochloridecarbon chloride
- 32. Multiple ChoiceFe+3 combines with S-2 to formFe+4(S)=3Fe2S4Fe2S3Fe3S2
- 33. Multiple ChoiceCa+2 combines with Br- to formCa2Br2CaBrCa(br)2CaBr2
- 34. Multiple ChoiceWhich of these is covalent?NaClPb(NO3)2CO2AlCl3
- 35. Multiple ChoiceIn the modern periodic table elements are arranged by:atomic massatomic numbervalence electronsnumber of isotopes
- 36. Multiple ChoiceEach column in the periodic table is called aperiodgroupclusterunit
- 37. Multiple ChoiceWhich group of the periodic table is composed of inert (not reactive) gases?alkali metalsalkaline earth metalshalogensnoble gases
- 38. Multiple ChoiceElements which are shiny, conduct electricity and heat are calledmetalnonmetalmetalloidnonexistent
- 39. Multiple ChoiceThe atoms along the staircase are calledmetalsnonmetalsmetalloidsnoble gases
- 40. Multiple ChoiceWhich is a halogen?HeliumChlorineOxygenNeptune
- 41. Multiple ChoiceWhich is an alkali metal?MagnesiumIronSodiumEuropium
- 42. Multiple ChoiceThis is used to represent the number of each atom being represented.A ExponentThe CoefficientA MoleculeThe Subscript
- 43. Multiple ChoiceThis appears on the left side of a chemical formula, and represents how many molecules there are.An AtomThe SubscriptA MoleculeThe Coefficient
- 44. Multiple ChoiceHow many hydrogen atoms are in this chemical formula:4 hydrogen atoms1 hydrogen atom2 hydrogen atoms3 hydrogen atoms
- 45. Multiple ChoiceLaw of conservation of mass states thatmatter is createdmatter is destroyedmatter is neither created nor destroyedmatter does not change
- 46. Multiple ChoiceEvidence of a chemical reaction include:Phase changeNo new substanceBubbles formingShape change
- 47. Multiple ChoiceWhat will weigh more when a chemical change is complete? The reactants before the chemical reaction, or the product after the reaction is complete?They both will weigh the sameThe product always weighs more than the reactantThe reactant will weigh more than the productThey both will loose mass after the reaction
- 48. Multiple ChoiceThe amount of matter you start with CAN BE DIFFERENT than the amount of matter you end with.True, it can be differentFalse, it remains the same
- 49. Multiple ChoiceWhat is the smallest identifiable unit of an element?atommoleculehydrogenquark
- 50. Multiple ChoiceIron reacts with oxygen and rusts.chemical changephysical change
- 51. Multiple ChoiceIf something is chemically bonded it _______.can be separated by a simple physical processis physically combinedcan not be separated by a simple physical process
- 52. Multiple ChoiceA tire is inflated with air.chemical changephysical change
- 53. Multiple ChoicePaper burns.chemical changephysical change
- 54. Multiple ChoiceIf a mixture is uniform throughout, it is _______.heterogeneoussalthomogeneousa compound
- 55. Multiple ChoiceIf a mixture is NOT uniform throughout, it is ______________.heterogeneousheterosexualhomogeneousa compound
- 56. Multiple ChoiceWhich is Chemical Equation is Balanced?CH₄+O₂------CO₂+2H₂OH₂+O₂-----2H₂O₄4Al+3O₂-----2Al₂O₃
- 57. Multiple ChoiceMatter is anything thattakes up space and has mass.is in our universe.is light, sound or ideas.
- 58. Multiple ChoiceMoleculeA group of atoms bonded togetherBasic unit of a chemical elementCoefficientSubscript
- 59. Multiple ChoiceAt higher temperaturesparticles in an object have less energyparticles in an object move fastera gas contracts
- 60. Multiple ChoiceParticles (molecules) in a ______________________ have more energy than the other states of matter.gassolidliquid
- 61. Multiple ChoiceA gashas a definite shape but no definite volumehas a definite volume but no definite shapehas fast-moving particles
- 62. Multiple ChoiceWhich state of matter has tightly packed molecules?solidliquidgas
- 63. Multiple ChoiceWhich state of matter has a definite shape?solidliquidgas
- 64. Multiple ChoiceDefine a liquid.Indefinite shape, indefinite volumeDefinite shape, definite volumeFound in starsDefinite volume, indefinite shape
- 65. Multiple ChoiceThe state of matter that has no definite size or shape isSolidLiquidGas
- 66. Multiple ChoiceParticles of a liquidare tightly packed together and stay in a fixed position.have no viscosity.decrease in volume with increasing temperature.are free to move around one another but still touch.
- 67. Multiple ChoiceThe speed of the molecules determines the _____.volumedensitypressuretemperature
- 68. Multiple ChoiceName the type of radioactive particle that can be stopped by a sheet of paper.alphabetagammalambda
- 69. Multiple ChoiceName the most penetrating type of radiation.alphabetagammalambda
- 70. Multiple ChoiceA helium nucleus with two protons and two neutrons is called a(n) ____ particlealphabetagammalambda
- 71. Multiple ChoiceNegatively charged particles emitted from a nucleus at a high speed are ____ .protonsneutronselectronsprotons and neutrons
- 72. Multiple ChoiceThe process by which nuclei having small masses are united to form a single larger nucleus is called nuclear ____.fusionfissionreactivitywaste
- 73. Multiple ChoiceThe three types of nuclear radiation in order of increasing penetrating power arealpha, beta, gammaalpha, gamma, betabeta, alpha, gammagamma, alpha, beta
- 74. Multiple ChoiceBoth a fusion reaction and a fission reaction produceheat (energy)lightsoundmagnetism
- 75. Multiple ChoiceEnergy in the sun is produced as a result of nuclear ____ reactions.fusionfissionwastesub
- 76. Multiple ChoiceThe rate at which a radioactive element decays is its ____.quarter lifewhole lifewonderful lifehalf life
- 77. Multiple ChoiceBarium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?0.25g2.5g25g80g
- 78. Multiple ChoiceIf 10 mg of iodine 131 is given to a patient, how much is left after 24 days? The half-life of iodine-131 is 8 days.1.25mg1.25g10g10mg
- 79. Multiple ChoiceThe half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?3.0g0.25mg0.3g0.25g
- 80. Multiple ChoiceIf "ionization" is the process of an atom becoming an ion, which of the following describes this?The atom jumps from one period to anotherAtom loses or gains protonsLithium turns into flourineAtom loses or gains electrons
- 81. Multiple ChoiceWhat is an atom or group of atoms that has an electric charge?ionmetalnonmetalionic compound
- 82. Multiple ChoiceWhat is a cation?positive ionNeutral atomTwo additional protonsnegative ion
- 83. Multiple ChoiceWhat is an anion?positive ionnegative ionneutral atom2 neutrons taken away
- 84. Multiple Choicelocated in the outermost energy level of an atom; their behavior determines what kind of compound is formedcovalent compoundchemical bondionic compoundvalence electrons
- 85. Multiple ChoiceWhich compound has the weaker chemical bond?ioniccovalentmetallicelectric
- 86. Multiple ChoiceWhen a metal reacts with a nonmental, it makesan ionic compounda covalent compounda low melting pointwater molecules
- 87. Multiple ChoiceGases have...A definite shape and volumeA definite shape but no definite volumeNo definite shape but a definite volumeNo definite shape or volume
- 88. Multiple ChoiceBoyle's law : The pressure and volume of a gas show a _____ relationship.No relationshipDirectInverseEqual
- 89. Multiple ChoiceWhich of the following terms identifies the change from a liquid to gas?VaporizationCondensationDepositionSublimation
- 90. Multiple ChoiceWhen the temperature of matter increases the particles...speed up and move closerspeed up and move farther apartslow down and move closer togetherslow down and move farther apart
- 91. Multiple ChoiceWhat happens to the average kinetic energy of matter when it is heated?It increasesIt decreasesIt doesn't changeIt cannot be determined
- 92. Multiple ChoiceWhat is a substance that is dissolved in another substance?solutionsolutesolventcompound
- 93. Multiple ChoiceIn the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?
stir the powder in the liquidfreeze the mixtureadd more powder to the liquidstore the mixture in a dark place - 94. Multiple ChoiceWhat does it mean to dilute a solution?lower the concentration of solute per solventincrease the concentration of solute per solvent
- 95. Multiple ChoiceWhat types of ions do acids produce in water?HydroxideHydrogen
- 96. Multiple ChoiceOn the pH scale what number is the most acidic14017
- 97. Multiple ChoiceWater is considered the universal solvent because...it dissolves to many solutes.the Earth is mostly made of it.humans are mostly comprised of it.it's so useful.
- 98. Multiple ChoiceHow does a solution become supersaturated?dissolve lots of solute in it.dissolve a little solute in it.dissolve more solute than you should be able to.dissolve a super amount of solvent in it.
- 99. Multiple ChoiceSolubility is a ________ property.neatchemicalphysicalan organic
- 100. Multiple ChoiceA solution is a ________ mixture.heterogeneoushomogeneousdumbmixed
- 101. Multiple ChoiceAt approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K2Cr2O7?60 ºC30 ºC50 ºC83 ºC
- 102. Multiple ChoiceHow many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?83 grams75 grams40 grams12 grams
- 103. Multiple ChoiceWhich substance is MOST soluble at 0 ºC?KINaNO3NaClCe2(SO4)3
- 104. Multiple ChoiceEnergy of motion is which type of energy?PotentialKineticSoundGravitational
- 105. Multiple ChoiceWhat type of energy is in this picture?KineticPotentialChemicalSound
- 106. Multiple ChoiceWhen plants convert the sun's energy into food, which type of energy is it?kineticchemicalthermalradiant
- 107. Multiple ChoiceWhat kind of energy is represented in this picture?ThermalPotentialNuclearMechanical
- 108. Multiple ChoiceWhat kind of energy does this device use?ChemicalElectricalThermalChemical
- 109. Multiple ChoiceA battery converts what type of energy to another?sound to kineticlight to heatmechanical to electricalchemical to electrical
- 110. Multiple ChoiceThe glow sticks produce light for a short amount of time. The light from the glow stick is a conversion from what to what?thermal to lightgravitational to potentialradiant to electricalchemical to light
- 111. Multiple ChoiceA 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to 175°C. Calculate the specific heat capacity of iron.0.46 J/gxoC1.654 J/gxoC2,567,446.875 J/gxoC
- 112. Multiple ChoiceHow many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22°C to 55°C, if the specific heat of aluminum is 0.90 J/gx°C?297 Joules0.003 Joules297 J/gx°C0.003 J/gx°C
- 113. Multiple ChoiceThe symbol for specific heat is .......cQmt
- 114. Multiple ChoiceSpecific heat is....The measure of kinetic energy of an objects particlesA measure of the energy needed to increase the average kinetic energy of the particlesThe heating caused by the motion of flluid due to temperature differenceThe transfer of energy by electromagnetic radiation
- 115. Multiple ChoiceA high specific heat means...It heats up quickly with energy addedIt requires more energy to change temperature
- 116. Multiple ChoiceIt takes 20 N of force to move a box a distance of 10 m. How much work is done on the box in Joules?200 J20.0J100 J10 J
- 117. Multiple ChoiceIf you do 40 joules of work lifting a 10N box, how high is the shelf you move it to.400m40m50m4m
- 118. Multiple ChoiceIn which of the following situations do your arms do work on books?holding a heavy stack of books while standingcarrying a heavy stack of booksdropping a stack of books onto a tablepicking up a pile of books from the floor
- 119. Multiple ChoiceA runners races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?10 m/s1000 m/s100 seconds10 seconds
- 120. Multiple ChoiceThe graph representsno motionconstant velocityaccelerationnegative acceleration
- 121. Multiple ChoiceThe graph representsno motionConstant velocityAccelerationnegative acceleration
- 122. Multiple ChoiceFind the velocity of a truck that travels 75 miles north in 2.5 hours.187.5 mph north30 mph north300 mph north200 mph north
- 123. Multiple ChoiceFind the velocity of a plane that traveled 3000 miles west in 5 hours.65 mph west6 mph west600 mph west6000 mph west
- 124. Multiple ChoiceWhat are the units of Force?kg*m/seckg*mNN*sec
- 125. Multiple ChoiceWhat is the unit for velocity?m/seckg/seckg/mkg m/sec
- 126. Multiple ChoiceWhat is the unit for mass?m/seckg/seckgkg m/sec
- 127. Multiple ChoiceWhat is the unit for acceleration?m/sm/s2kg*m/sN
- 128. Multiple ChoiceWhat law is best described by inertia?1st2nd3rd
- 129. Multiple Choice1st2nd3rd
- 130. Multiple Choice1st2nd3rd
- 131. Multiple ChoiceWhen you kick a ball across a feild and it hits someone in the face and they fly backwardsAction=ReactionSpeedMotionAir
- 132. Multiple ChoiceIf the mass of an object decreases, what property will decrease as well?AccelerationForceInertiaVelocity
- 133. Multiple ChoiceIf an unbalanced force acts on an object, what will be the outcome?No changeAccelerationMass will increaseMass will decrease
- 134. Multiple ChoiceAcceleration on earth due to gravity is....9.8 meters9.8 seconds9.8 meters per second9.8 meters per second squared
- 135. Multiple ChoiceHow much work is produced when 350 N is used to move a car 5 m?70 J1750 J355 J175 J
- 136. Multiple ChoiceWhat is a machine?an object that has AIan object that is designed to take over the earth in 2020simple mechanisms that use mechanical advantage to multiply force.a mechanism that is used to decrease the amount of work done
- 137. Multiple ChoiceWhat is effort (input) force?the force required by a machine in order to accomplish work (the force you put on the machine)the force which an effort force must overcome in order to do work on an object via a simple machine.the force the machine exerts on a objectthe output work times the input distance
- 138. Multiple ChoiceWhat is resistance (output) force?the force required by a machine in order to accomplish work (the force you put on the machine)the force which an effort force must overcome in order to do work on an object via a simple machine.the force the machine exerts on a objectthe output work times the input distance
- 139. Multiple Choice
What property of this wave is represented by the letter "A"
amplitude
crest
trough
wavelength
- 140. Multiple ChoiceWhat property of the wave is represented by the letter "B"?amplitudecresttroughwavelength
- 141. Multiple ChoiceThe highest point on a wave is:the crestthe troughthe topthe coast
- 142. Multiple ChoiceThe lowest point on a wave is the:AmplitudeCrestTroughWavelength
- 143. Multiple ChoiceThe number of wavelengths that pass a point each per second is:frequencyperiodlongitudinaltransverse wave
- 144. Multiple ChoiceWhich letter(s) represent the trough of the wave?AB & DDC & G
- 145. Multiple ChoiceWhich wave in the diagram has the greatest wavelength?1234
- 146. Multiple ChoiceWhich wave in the diagram has the greatest frequency?1234
- 147. Multiple ChoiceWhich of the following can sound travel through?solidliquidgasall of the above
- 148. Multiple ChoiceElectromagnetic waves include the following exceptradio wavesX-raysdoing the wave at a football gamemicrowaves
- 149. Multiple Choiceregular disturbances that carry energy through matter or spacecrestenergywavetrough
- 150. Multiple ChoiceWhen a wave strikes and object and bounces off. (example echo)mediumrefractionreflectioninterference
- 151. Multiple ChoiceWhen a wave bends as it passes through at an angle from one medium to another.(example: pencil in a glass of water-)mediumrefractionreflectioninterference
- 152. Multiple ChoiceHow do you measure the wavelength of a longitudinal wave?Crest to crestMiddle of compression to middle of next compressionYou cannot measure the wavelength.It does not have a wavelength.
- 153. Multiple ChoiceWhich wave is pictured?TransverseLongitudinalBothNeither
- 154. Multiple ChoiceWhich wave is pictured?TransverseLongitudinalBothNeither
- 155. Multiple ChoiceHow many waves are in this picture?123.54
- 156. Multiple ChoiceSound is an example of which type of wave?TransverseLongitudinalBothNeither
- 157. Multiple ChoiceWhich of the following best explains the difference between transverse and longitudinal waves?Only transverse waves vibrate.Only longitudinal waves can travel through a solid.Particles only travel in a circular pattern along a longitudinal wave.Particles only travel perpendicular to the direction the energy travels in a transverse wave.
- 158. Multiple ChoiceImagine one end of a rope is tied to a door handle. The other end is caused to vibrate vertically(up & down). The wave that travels along the rope is an example of a(n)...Electromagnetic WaveMicrowaveTransverse WaveLongitudinal Wave
- 159. Multiple ChoiceWhich letter represents the amplitude of the wave?ABCD
- 160. Multiple ChoiceWhen the car moves away from you, its horn seems...Low pitchedHigh pitchedNormal
- 161. Multiple ChoiceTrue or False: The Doppler effect occurs when an observer moves away from a wave source.TrueFalse
- 162. Multiple ChoiceTrue or False: The Doppler effect occurs when a wave source moves towards an observer.TrueFalse
- 163. Multiple ChoiceWhen someone is playing music by the road and you drive pass him, the music will _______become higher and then lowerbecome lower and then higherbecome lowerbecome higher
- 164. Multiple ChoiceFriction is a force that acts in an ___________ direction of movement.similaroppositeparallelwest
- 165. Multiple ChoiceIn static electricity,chargesflow continuouslyflow intermittentlybuild up in an atombuild up on an object
- 166. Multiple ChoiceA region around a charged object where electric force is exerted where object's electric force is exerted on other charged objects in an electricfieldoutletsocketpower plant
- 167. Multiple ChoiceCharges can redistribute themselves by friction, conduction,polarization, or........reductionproductioninductionsuper conduction
- 168. Multiple ChoiceCharges that are different _____________ each other.attractrepelequalmove opposite to
- 169. Multiple ChoiceLighting is an example of a static ___________.fielddischargeforcepolarization
- 170. Multiple Choice_______________ force is the force between charged objects.Electricconservationinductionfield
- 171. Multiple ChoiceThe Gulf Stream is a current that brings warm ocean water from the south to the north. What type of heat transfer is this?conductionconvectionradiationInsolation
- 172. Multiple ChoiceIroning a shirt is an example of...condensationconductionconvectionradiation
- 173. Multiple ChoiceThe heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?radiationconductionconvectioninsulation
- 174. Multiple ChoiceDoes this statement best describe a parallel or a series circuit.
Different voltages are dropped across each resistor.Parallel circuitSeries circuit - 175. Multiple ChoiceWhich of the two circuits would have the brightest bulbs?AB
- 176. Multiple ChoiceThe picture shows an electrical circuit. This circuit is a series circuit because:It has 3 light bulbs.The same current flows through all three light bulbs.It uses a single battery.The electrical current is divided between the three light bulbs.
- 177. Multiple ChoiceWhen you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in __________.parallelseriesopenclosed
- 178. Multiple Choicewhat is this symbol for?light bulbswitchbatteryresistor
- 179. Multiple ChoiceUnit for resistanceAmpereOhmVoltWatt
- 180. Multiple ChoiceWhat is one benefits of using a parallel circuit?It gets confusing.There are no problems.If one goes down, it does not affect the others.Porque es para llelio.
- 181. Multiple ChoiceIn a cell, which form of energy is converted into electrical energy?Chemical energySolar energyMechanical energyElectrical energy
- 182. Multiple ChoiceWhat device is the diagram below representing?Bar MagnetBarometerElectromagnetElectric current
- 183. Multiple ChoiceWhich of the following answers the best completes this hypothesis about electromagnets?If the wire is coiled more times around the nail, THEN the strength of the electromagnet will decrease.A. IF the piece of iron is bigger, THEN the strength of the electromagnet will decrease.A. IF the wire is coiled fewer times around the nail, THEN the strength of the electromagnet will increaseA. IF the wire is coiled more times around the nail, THEN the strength of the electromagnet will increase
- 184. Multiple Choice1. An iron nail is not normally magnetic. In an electromagnet, the iron nail can attract iron and steel. How can a nail become magnetized in an electromagnet?A. The electricity in running through the wire produces a magnetic field and magnetizes the ironB. The nail is a special type of nailC. The paper clips will magnetize the nailD. Being close to the battery magnetizes the nail
- 185. Multiple ChoiceWhat is the transfer of electricity in a generator?Mechanical to ElectricalPhysical to PotentialElectrical to MechanicalYogurt to Light
- 186. Multiple ChoiceWhat can you use to make an electromagnet?Battery, nail and stringBattery, pencil and wireWire, battery and iron ore (nail)Peanut butter, lampshade, hand sanitizer
- 187. Multiple ChoiceIn large generators in power plants, ___________ rotate inside a coil of wire to produce an electric current.WindWaterMagnetsCircuits
- 188. Multiple ChoiceWhich device uses mechanical energy to produce electrical energy?Electric MotorMagnetGeneratorSolar Cell
- 189. Multiple ChoiceElectric fields are often associated with what other kind of field?Magnetic FieldsNuclear FieldsParticle FieldsCorn Fields
- 190. Multiple ChoiceWhat force does a magnetic field apply without actually touching the object?a push or pullgravityfrictionpressure
- 191. Multiple ChoiceWhat two forces are required for generators and electric motors to work?magnetism and thermalelectricity and thermalelectricity and magnetismmagnetism and radiant
- 192. Multiple ChoiceIn an electric motor, the energy transformation begins as ----electrical and becomes chemicalmechanical and becomes electricalelectrical and becomes mechanicalmechanical and becomes chemical
- 193. Multiple ChoiceIf I were to try to connect the north pole of one magnet to the north pole of another magnet, the two poles would:attractrepelneitherflip
- 194. Multiple ChoiceWhat is the symbol for Potassium?PKPbPd
- 195. Multiple ChoiceWhich has 4 valence electrons on the outer energy level?BoronSiliconBerylliumSulfur
- 196. Multiple ChoiceWhich is an alkaline earth metal?CalciumRubidiumCarbonIodine
- 197. Multiple ChoiceWhich family of metals would be the most reactive?Alkali MetalsTransition MetalsAlkaline Earth MetalsFull Metal Jacket
- 198. Multiple ChoiceHow many valence electrons does Sodium (Na) have?1234
- 199. Multiple ChoiceWhich two factors affect the gravitational attraction between two objects?Density and FrictionMass and DistanceDensity and DistanceMass and Friction
- 200. Multiple ChoiceIf you use a crowbar to get the lid off of a bucket, what simple machine are you using?Inclined PlanePulleyWheel and AxleLever
- Answer choicesTagsAnswer choicesTags