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物理 高中

第六題

| t 8 功力監什禾 (c)6戶 (CD》%F *些哇帶電量較天的乙, 全 CA》2丘一CB》4戶CC)6戶CCDS反 GCEDA2戶 人只號人所5 CGSyRN補人 人 > 4. 有呢重力的敘進,下和烈何老錢蜈? Ni SA (2當以人7 參 來表示,式中重力當 請 同 2. MR (0田以說明月球何以繞地球運行而休堅北 到只 (@何以說明為何蔡果會趕闊地區 KAY 太喝受到的地球引力, 、與地于受至太吧的戰力如罕 @ GayB ,所受全到心引力信代心。 ccy. 昌定,是以它維妃你下球 Mo 功利負僅 。 G W 3要估同力。器多到誠變歐臣王、電生條多 介程。 唱僚吧一種隻柑交互共中 于妃名革 See. 要人贍馬力? (A)靜電力“(GB)強核 (c)電磁力 (GD)重力 GSy)吧煽力。 畫,分品放置繼電堅 3d 屆 Ad 6亡N 凶險 (@ 在人2林0人多 : 谷嫖苹。d抒受元電力之含旋生生 公分全AA 給 今將另一帶電量4 的點電蕉放置於哪罷 之、 y 主2 0 2二4 (092 (GCD) x三6 (5》 x汪% 7. 有關「強核力,」 的化信, 克列歸若正匯? 選科 喇 (^)為庫命首先提出 (GB)遵守與距離平方反多的熙你 (c)兩冰塊間緊密結含熙 。甘你馬力點 ~Gp)強核力的作用範革很大 (品原子核內質子之國的東鍋須低化只官2 1 衛是,依 2011 年誠位攤地只條還S 六 s. 我國福衛五號(FORMOSAT 5) 際線作軍轉,主要是四哪一竹交九估有 (A)重力_(B)電磁力 AU 導別坊力 再戰鬼還林 龍騰文化

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物理 高中

18題,感謝

10. [2D and 3D motion] Show that the potential energy U(r) ofFa particle of nass jat aa distance r(> 員 from a planet of Inass 4 and radins 戶話 11. [The cross product] Caleulate the cross product A x B, assuming that A and B both lie in the x-y plane and have the respective nonzero components 4,, 4, and 妖,, 且, 12. [Angular momentum] Show that 主r, the instantaneous position ofa particle of mass mu with respect to a certain origin O, is parallel to its acceleration dv/吧, then the time Tate of change of the angular Inoimentum L with respect to the given origin vanishes 13. [Theorem 了 Show that the torque-angular momentum formnla _箇 7二 is also valid for a two-particle system 放 the origin lies at the center of mass 14. [Theorem IIH] Two particles of respective Inass ml and 2 are connected to the ends of amassless rod and Inove in the uniform gravitational field g ofthe earth. (a) What is the acceleration of their center of nass Telative to a Newtonian origin O? (b) Show that the angular Inomentum of the two particles about their center of nass 生 aconstant of the motion. 15. [Moments of inertia] Calculate the moment of inertia ofathin, uniform rod of mass m and length / about an axis perpendicular to the rod and at a distance q from one end. 16. [Rotation about a fixed axis] Consider the rotating cylinder in Figure, and suppose that A7 sg, Fo 三 0.6 Nt, and @ 二 0.2m, Calculate (a) The torque 7 acting on the cylinder (b) Ti ngular aceeleration q of the cylinder 17. [Work and kinet: instant Totat eenergy] A 40-kg homogeneous sphere of radius 10 cm is at acertain about ashaft through its center at 600 rpm. Assuining that a constant fric itude ets so that the sphere comes to rest in 10 seconds, Calculate th tional torque ofthis torque. 18. [The physical pendl end and allowed to oscillate freely in a horizontal plane (see Figure) m] A uniform Tod of Inass ru and length / is suspended at one (a) What is the period of this physic lpendulum for small amplitudes? (b) Ithe velocity u0 of the mass ce Hulum is initially released at rest in a horizontal position。what is the er at a subsequent instant when the Tod is vertical? (ec) Calculate the vertical and the horizontal components of the force on the rod at the point of suspensic 19 and rotations] Analyze the motion of a homogeneous sphere of mass 和7 and Tadius dq, which rolls without slipping down a fixed inclined plane of angle # 20. of angular momentum] A Inan has ainoment of inertia 五 about the = axis. He is originally at Test and standing on asinall platform which can turn freely. Ifhe is handed a wheel which is rotating at and has anoinent of inertia 了about its spinning axis, determine his angular velocity 放 (a) he holds the wheel upright, (b) turns the wheel out 9 二 90?, and (c) turns the wheel downward, 9 二 180?. Neglect the effect of holding the wheel a distance d away from the z axis

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物理 高中

1,2,3,9

( /」)1. 一發電機的線圈在均勻磁場中等速旋轉, 最大感應電動勢值為6,,自線圖平面垂直於磁場起 【,防 內之平均感應電動勢值為:,則 el: 52為 還1 0) 2 :1 (5D2. 2 (了多. 電磁輻射中,某一 0 N/A一m 向北,電碰輻射向西進行, 崗人陸產生之電電為 (A)3x10'向上 (B)9x10?向上 (C)9x10 各下 (D)3x10 向下(BED10 向上 : (了 一帶電質點Q 被拋入一均勻電場,拋入時其初速與電場方向不益行,則 和有人 (A)螺線 (B)雙曲線 (C)圓 (D)拋物線 (入)4. 下列有關X 射線的敘述何者正確? (A)X 射線的速率等於光速 (B)X 射線可用電場加速 (C》射可用磁場加速 (D)X 和二一種放生的電 (M )5. 近代生物學家決定複雜分子的結構時, 常用的技術是 : 1 (A)超音波探測一(B)可見光雷射透射 (C)紅外光反射 (D)X 光,繞射 時 導 下列和敘述何者錯誤? ~ @)光電效應證明光具有粒子性質 ”(B)動量愈大,物質波波長愈長 (0電子例和 有波動性 (3D) 和 質量愈大的物體,波動性愈不明顯 (RE)波長愈大,波動性愈顯著 ' 0 )7 已知某金屬表面接受波長為和和 2和的單色光照射時, 釋放出的光電子的了人二 分別為30 eW和10 eV, 則便 金屬表面產生光電效應的入射光的底限波長為多少 ? 遇 胃上9 9 GB (0G)5和2 (D)1042 (EE)3人 28. 已知卻的功函數為 2 1 e.Y.。現以波長為 400 nm 的紫光照射甸金屬的表面 則放生則的光電子最大動能為多2 1 同(6 e.V7 0D)1.2 ee [站 以波長為刀 之光線。,照射某一光電表面,測得截止電位為V,若以波長入/2 之光照射呈 , 護裁止電位邁歸9 占C 自G@ 忠和 hA 2 (G0)V十 (0)江一 襄 / 光電效應叫, 被光芒撞離的為 (了(0)中子 (D)電子 贍 人 全人 靈效應刻,若了表示電流,Y為二極間的電劑,光照在光學板,入射光強顏人病有其

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