PhysicsHonors

Points Possible:100

N

1. Identifyhowtheelectrostaticforceactsbetween protons,andbetween protonsandeachof the other two types of particles that make up atoms. (4 points)

1. Identifytheelementwhose atomshave9protons.Isitametal,anonmetal,orametalloid? Writesentencesdescribinghowanatomofthiselementchanges whenitforms anionic bond. (4 points)

Aroboticsubmersibleisbeinglowered intothewater. Whathappenstothetension inthecable asthesubmersibleentersthewater? Writesentencesexplainingyourreasoning.(6points)

1. If0.96kgofironat120Cisaddedto0.75kgofwater at20C,whatwillbethenal temperature of the system? (4 points)

1. Writesentences describinghowtorecognizeanendothermicreaction andhowthe energyoftheproductsofanendothermicreactioncompareswiththeenergy ofthereactants.

(4points)

1. Thetemperatureofasubstancedoesnotchange asitfreezes.Writesentencesto explain why this happens at a molecular level. (4 points)

1. Writesentences comparingthefollowing propertiesofbluelightandredlight: wavelength, energy, frequency, and speed. (4 points)

1. Whenbluelight andredlight shineonametalsurface, onlyonecolor producesanelectric current.Writesentencesdescribingtheeffect ofeachlight onthemetal.Wouldincreasing theintensityofeither typeoflight haveaneffect onthecurrentproduced?Howdoes quantization help explain these observations? (6 points)

1. Drawthemagneticeldlinesbetween thetwoendsofthemagnets.Write sentences describingthedirectionofthemagnetic forcebetweenthemagnetsandidentifyingthetwo electricpointchargesthathaveanelectriceldbetweenthemthatresembles thismagnetic eld. (6 points)

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