UH PHYS 1302 - clicker11:20 (8 pages)

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clicker11:20



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clicker11:20

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clicker question


Pages:
8
School:
University of Houston
Course:
Phys 1302 - Introductory to Physics II

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In Class Questions Nov 20 2014 Enter Ch 33 Ch on your clickers ResponseWare Session ID WHITEHEAD If a biological sample receives a dose of 100 rad from neutrons RBE 5 what dosage of protons RBE 10 would cause the same amount of damage to the sample A B C D E 5 rad 50 rad 100 rad 200 rad 400 rad 20 20 20 B C 20 20 60 A D E What weighs more an electron and a proton or a hydrogen atom A Electron proton B Hydrogen atom C They weigh the same 33 33 33 45 A B C What weighs more a proton 2 neutrons or a Tritium nucleus 3H A Proton 2 neutrons B Tritium nucleus C They weigh the same 33 33 33 45 A B C In a fission reaction how does the total mass of the fission fragments compare to the mass of the original nucleus A Fission fragments have more mass B Fission fragments have less mass C Fission fragments have the same mass 33 33 33 45 A B C You may notice that if a mercury in glass thermometer is inserted into a hot liquid the mercury column first drops and then later starts to rise as you expect Why A The mercury contracts before the glass contracts B The glass contracts before the mercury contracts C The mercury contracts before the glass expands D The glass expands before the mercury expands E The mercury expands before the glass expands 20 20 20 B C 20 20 60 A D E Two objects are made of the same material but have different masses and temperatures If the objects are brought into thermal contact which one will have the greater temperature change A The one with the higher initial temperature B The one with the lower initial temperature C The one with the greater mass D The one with the smaller mass E The one with the higher specific heat 60 20 A 20 20 B C 20 D 20 E Why does a metal doorknob feel colder to your hand than the wooden door A Metal has a greater thermal conductivity than wood B Metal has a smaller thermal conductivity than wood C Metal is always at a lower temperature than wood 45 33 A 33 B 33 C



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