原子核+运动检测

《原子核+运动检测》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、11年级物理期末考试1.Recallwhathappenstotheatomicnumberandmassnumberofanucleuswhenitundergoes:(C)aalphadecaybbetadecay2.Listthesevenfundamentalunitsoftheinternationalsystem.(C)3.Acycliststartsfromrestandattainsavelocityof20ms–1in4seconds.Calculate(a)theacceleration,assumedconstan

2、t;(b)thedisplacement.(C)4.ForthemotionofthebungeejumpershownintheFigure:(C)(a)calculatethedisplacementanddistancetravelledafter20s;（0-20s）(b)calculatetheaccelerationat10s,(c)sketchanacceleration–timegraph.5.Aforceof10.0NWNand10.0NENactsonthesamepointP.Determinethetotalfo

3、rceactingonthatpoint.(C)6.Astoneisdroppedfromabridge50mabovethewater.Exactly1slater,anotherstoneisthrowndownsothatbothstonesstrikethewatertogether.(B)Whatisthetotaltimetakenforthestonestoreachthewater?Plotav–tgraphofbothstonesontheonegraph.7.Anewspaperarticlequotesasafet

4、yexpertwhosays,“Apersonnotwearinghisseatbeltina50kmh-1carcrashwillexperiencethesameeffectsasifdroppedontotheconcretegroundfromthesecondfloorofabuilding.”Explainwhetheryouagreewithordisagreewiththeclaim.Justifyyourresponse(A)