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鍏� 6 闋�(y猫)绗� 1 闋�(y猫)
鎴愰兘闆诲瓙绉戞妧澶у(xu茅)
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鑰冭│绉戠洰锛�811 澶у(xu茅)鐗╃悊
娉細鎵€鏈夌瓟妗堝繀闋堝(xi臎)鍦ㄧ瓟椤岀礄涓婏紝瀵�(xi臎)鍦ㄨ│鍗锋垨鑽夌ǹ绱欎笂鍧囩劇(w煤)鏁�銆�
涓€銆侀伕鎿囬(鏈鍏辫▓(j矛) 42 鍒�,姣忛 3 鍒�)
1 鍏╁€�(g猫)鐗╅珨 A 鍜� B 鐨勮唱(zh矛)閲忎互鍙婂畠鍊戠殑閫熺巼閮戒笉鐩稿悓锛岃嫢鐗╅珨 A 鐨勫嫊(d貌ng)閲忓湪鏁�(sh霉)鍊间笂姣旂墿楂� B 鐨�
澶�锛屽墖 A 鐨勫嫊(d貌ng)鑳� EKA 鑸� B 鐨勫嫊(d貌ng)鑳� EKB 涔嬮枔
(A) EKB 涓€瀹氬ぇ浜� EKA锛� (B) EKB 涓€瀹氬皬浜� EKA锛�
(C) EKB锛滶KA锛� (D) 涓嶈兘鍒ゅ畾瑾�(shu铆)澶ц(shu铆)灏忥紟 锛� 锛�
2 濡傚湒鎵€绀�锛屽叐鍊�(g猫)鍚屽績鍧囧嫽甯堕浕鐞冮潰锛屽収(n猫i)鐞冮潰鍗婂緫鐐� R1銆佸付鏈夐浕鑽� Q1锛屽鐞冮潰鍗婂緫鐐� R2銆�
甯舵湁闆昏嵎 Q2锛屽墖鍦ㄥ鐞冮潰澶栭潰銆佽窛闆㈢悆蹇冪偤 r 铏曠殑 P 榛�(di菐n)鐨勫牬(ch菐ng)寮�(qi谩ng)澶у皬 E 鐐猴細
(A) 2
0
21
4 r
QQ
??
?
锛�
(B)
? ? ? ?2
20
2
2
10
1
44 Rr
Q
Rr
Q
??
?
?? ??
锛�
(C)
? ?2
120
21
4 RR
QQ
??
?
?
锛�
(D) 2
0
2
4 r
Q
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锛� 锛� 锛�
3 瑷�(sh猫)鏌愮ó姘ｉ珨鐨勫垎瀛愰€熺巼鍒嗗竷鍑芥暩(sh霉)鐐� f(v)锛屽墖閫熺巼鍦� v 1鈹€v 2 鍗€(q奴)闁撳収(n猫i)鐨勫垎瀛愮殑骞冲潎閫熺巼鐐�
(A) ? ??
2
1
d
v
v
vvvf 锛�
(B) ? ??
2
1
d
v
v
vvvv f 锛�
(C) ? ??
2
1
d
v
v
vvvf / ? ??
2
1
d
v
v
vvf 锛�
(D) ? ??
2
1
d
v
v
vvf / ? ??
?
0
dvvf 锛� 锛� 锛�
4 闆绘祦 I 鐢遍暦(zh菐ng)鐩村皫(d菐o)绶� 1 娌垮钩琛� bc 閭婃柟鍚戠稉(j墨ng) a 榛�(di菐n)娴佸叆鐢遍浕闃诲潎
鍕荤殑灏�(d菐o)绶氭(g貌u)鎴愮殑姝ｄ笁瑙掑舰绶氭锛屽啀鐢� b 榛�(di菐n)娌垮瀭鐩� ac 閭婃柟鍚戞祦鍑�锛�
缍�(j墨ng)闀�(zh菐ng)鐩村皫(d菐o)绶� 2 杩斿洖闆绘簮(濡傚湒)锛庤嫢杓夋祦鐩村皫(d菐o)绶� 1銆�2 鍜屼笁瑙掑舰妗�
涓殑闆绘祦鍦ㄦ涓績 O 榛�(di菐n)鐢�(ch菐n)鐢熺殑纾佹劅寮�(qi谩ng)搴﹀垎鍒ョ敤 1B
?
銆� 2B
?
鍜� 3B
?
琛�
绀�锛屽墖 O 榛�(di菐n)鐨勭鎰熷挤(qi谩ng)搴﹀ぇ灏�
(A) B = 0锛屽洜?y脿n)?B1 = B2 = B3 = 0锛�
(B) B = 0锛屽洜?y脿n)娈鐒� B1鈮� 0銆丅2鈮� 0锛屼絾 021 ?? BB
??
锛�
O
P
r
R1
R2
Q1
Q2
a
b
c
I
O
1
2
鍏� 6 闋�(y猫)绗� 2 闋�(y猫)
B3 = 0锛�
(C) B 鈮� 0锛屽洜?y脿n)娈鐒� B2 = 0銆丅3= 0锛屼絾 B1鈮� 0锛�
(D) B 鈮� 0锛屽洜?y脿n)娈鐒� 021 ?? BB
??
锛屼絾 B3鈮� 0锛� 锛� 锛�
5 ABCD 鐐轰竴濉婃柟瑙ｇ煶鐨勪竴鍊�(g猫)鎴潰锛孉B 鐐哄瀭鐩翠簬绱欓潰鐨勬櫠楂斿钩闈㈣垏
绱欓潰鐨勪氦绶氾紟鍏夎桓鏂瑰悜鍦ㄧ礄闈㈠収(n猫i)涓旇垏 AB 鎴愪竴閵宠?锛屽鍦栨墍绀猴紟涓€鏉熷钩
琛岀殑鍠壊鑷劧鍏夊瀭鐩翠簬 AB 绔潰鍏ュ皠锛庡湪鏂硅В鐭冲収(n猫i)鎶樺皠鍏夊垎瑙ｇ偤 o 鍏夊拰
e 鍏�锛宱 鍏夊拰 e 鍏夌殑
(A) 鍌虫挱鏂瑰悜鐩稿悓锛岄浕鍫�(ch菐ng)寮�(qi谩ng)搴︾殑鎸嫊(d貌ng)鏂瑰悜浜掔浉鍨傜洿锛�
(B) 鍌虫挱鏂瑰悜鐩稿悓锛岄浕鍫�(ch菐ng)寮�(qi谩ng)搴︾殑鎸嫊(d貌ng)鏂瑰悜涓嶄簰鐩稿瀭鐩达紟
(C) 鍌虫挱鏂瑰悜涓嶅悓锛岄浕鍫�(ch菐ng)寮�(qi谩ng)搴︾殑鎸嫊(d貌ng)鏂瑰悜浜掔浉鍨傜洿锛�
(D) 鍌� 鎾� 鏂� 鍚� 涓� 鍚� 锛� 闆� 鍫�(ch菐ng) 寮�(qi谩ng) 搴� 鐨� 鎸� 鍕�(d貌ng) 鏂� 鍚� 涓� 浜� 鐩� 鍨�
鐩达紟 锛� 锛�
6 闄勫湒鏄皫(d菐o)楂�銆佸崐灏�(d菐o)楂�銆佺禃绶ｉ珨鍦ㄧ啽鍔涘(xu茅)婧害 T =0 K 鏅�(sh铆)鐨勮兘甯剁祼(ji茅)妲�(g貌u)鍦栵紟鍏朵腑灞簬绲曠罚楂旂殑
鑳藉付绲�(ji茅)妲�(g貌u)鏄�
(A) (1)锛� (B) (2)锛�
(C) (1)锛�(3)锛� (D) (3)锛�
(E) (4)锛� 锛� 锛�
7 瀵嗙珛鏍规补婊村(sh铆)椹�(y脿n)锛屾槸鍒╃敤浣滅敤鍦ㄦ补婊翠笂鐨勯浕鍫�(ch菐ng)鍔涘拰閲嶅姏骞宠 鑰屾脯(c猫)閲忛浕鑽风殑锛屽叾闆诲牬(ch菐ng)鐢卞叐濉�
甯堕浕骞宠鏉跨敘(ch菐n)鐢燂紟瀵�(sh铆)椹�(y脿n)涓�锛屽崐寰戠偤 r銆佸付鏈夊叐鍊�(g猫)闆诲瓙闆昏嵎鐨勬补婊翠繚鎸侀潨姝㈡檪(sh铆)锛屽叾鎵€鍦ㄩ浕鍫�(ch菐ng)鐨�
鍏╁妤垫澘鐨勯浕鍕�(sh矛)宸偤 U12锛庣暥(d膩ng)闆诲嫝(sh矛)宸鍔犲埌 4U12 鏅�(sh铆)锛屽崐寰戠偤 2r 鐨勬补婊翠繚鎸侀潨姝�锛屽墖瑭叉补婊�
鎵€甯剁殑闆昏嵎鐐猴細
(A) 2e (B) 4e
(C) 8e (D) 16e 锛� 锛�
8 鍦ㄥ鍦栨墍绀虹殑瑁濈疆涓紝鐣�(d膩ng)涓嶅お闀�(zh菐ng)鐨勬褰㈢閻靛湪闁夊悎绶氬湀鍏�(n猫i)浣滄尟鍕�(d貌ng)鏅�(sh铆)(蹇界暐绌烘埃闃诲姏)锛�
(A) 鎸箙鏈�(hu矛)閫愭几鍔犲ぇ锛� (B) 鎸箙鏈�(hu矛)閫愭几娓�?銆�?br/>(C) 鎸箙涓嶈畩锛� (D) 鎸箙鍏堟笡灏忓悗澧炲ぇ锛� 锛� 锛�
闁夊悎绶氬湀
NS
D
A
C
B
鍏�
杌�?
灏�(d菐o)甯讹紙绌哄付锛�
绂佸付
婊垮付
灏�(d菐o)甯讹紙绌哄付锛�
绂佸付
婊垮付
灏�(d菐o)甯讹紙鏈豢锛�
绂佸付
婊垮付
绌哄付
绂佸付
婊垮付
灏�(d菐o)甯讹紙鏈豢锛�
閲�
杩�
(1) (2) (3) (4)
鍏� 6 闋�(y猫)绗� 3 闋�(y猫)
9 濡傚湒鎵€绀�锛孲1 鍜� S2 鐐哄叐鐩稿共娉㈡簮锛屽畠鍊戠殑鎸嫊(d貌ng)鏂瑰悜鍧囧瀭鐩翠簬
鍦栭潰锛岀櫦(f膩)鍑烘尝闀�(zh菐ng)鐐�? 鐨勭啊(ji菐n)璜ф尝锛孭 榛�(di菐n)鏄叐鍒楁尝鐩搁亣鍗€(q奴)鍩熶腑鐨勪竴榛�(di菐n)锛�
宸茬煡 ?21 ?PS 锛� ?2.22 ?PS 锛屽叐鍒楁尝鍦� P 榛�(di菐n)鐧�(f膩)鐢熺浉娑堝共娑夛紟鑻�
S1 鐨勬尟鍕�(d貌ng)鏂圭▼鐐� )
2
12cos(1 ???? tAy 锛屽墖 S2 鐨勬尟鍕�(d貌ng)鏂圭▼鐐�
(A) )
2
1
2cos(2 ???? tAy 锛� (B) )2cos(2 ???? tAy 锛�
(C) )
2
1
2cos(2 ???? tAy 锛� (D) )1.02cos(22 ???? tAy 锛� 锛� 锛�
10 鏌愬厓绱犵殑鐗瑰緛鍏夎瓬涓惈鏈夋尝闀�(zh菐ng)鍒嗗垾鐐�?1锛�450 nm 鍜�?2锛�750 nm (1 nm锛�10
-9
m)鐨勫厜
璀滅窔锛庡湪鍏夋煹鍏夎瓬涓�锛岄€欏叐绋尝闀�(zh菐ng)鐨勮瓬绶氭湁閲嶇枈鐝�(xi脿n)璞★紝閲嶇枈铏�?2鐨勮瓬绶氱殑绱�(j铆)鏁�(sh霉)灏囨槸
(A) 2 锛�3 锛�4 锛�5 锛庯紟锛庯紟锛庯紟
(B) 2 锛�5 锛�8 锛�11锛庯紟锛庯紟锛庯紟
(C) 2 锛�4 锛�6 锛�8 锛庯紟锛庯紟锛庯紟
(D) 3 锛�6 锛�9 锛�12锛庯紟锛庯紟锛庯紟 锛� 锛�
11 鍦ㄧ嫻缇╃浉灏�(du矛)璜栦腑锛屼笅鍒楄(shu艒)娉曚腑鍝簺鏄纰虹殑锛�
(1) 涓€鍒囬亱(y霉n)鍕�(d貌ng)鐗╅珨鐩稿皪(du矛)浜庤瀵熻€呯殑閫熷害閮戒笉鑳藉ぇ浜庣湡绌轰腑鐨勫厜閫燂紟
(2) 璩�(zh矛)閲忋€侀暦(zh菐ng)搴�銆佹檪(sh铆)闁撶殑娓�(c猫)閲忕祼(ji茅)鏋滈兘鏄毃鐗╅珨鑸囪瀵熻€呯殑鐩稿皪(du矛)閬�(y霉n)鍕�(d貌ng)鐙€鎱�(t脿i)鑰屾敼璁婄殑锛�
(3) 鍦ㄤ竴鎱ｆ€х郴涓櫦(f膩)鐢熶簬鍚屼竴鏅�(sh铆)鍒�锛屼笉鍚屽湴榛�(di菐n)鐨勫叐鍊�(g猫)浜嬩欢鍦ㄥ叾浠栦竴鍒囨叄鎬х郴涓篃鏄悓鏅�(sh铆)
鐧�(f膩)鐢熺殑锛�
(4)鎱ｆ€х郴涓殑瑙€瀵熻€呰瀵熶竴鍊�(g猫)鑸囦粬浣滃嫽閫熺浉灏�(du矛)閬�(y霉n)鍕�(d貌ng)鐨勬檪(sh铆)閻樻檪(sh铆)锛屾渻(hu矛)鐪嬪埌閫欐檪(sh铆)閻樻瘮鑸囦粬鐩�
灏�(du矛)闈滄鐨勭浉鍚岀殑鏅�(sh铆)閻樿蛋寰楁參浜涳紟
(A) (1)锛�(3)锛�(4)锛� (B) (1)锛�(2)锛�(4)锛�
(C) (1)锛�(2)锛�(3)锛� (D) (2)锛�(3)锛�(4)锛� 锛� 锛�
12 闂�(gu膩n)浜庡厜闆绘晥鎳�(y墨ng)鏈変笅鍒楄(shu艒)娉曪細
(1) 浠讳綍娉㈤暦(zh菐ng)鐨勫彲瑕�(ji脿n)鍏夌収灏勫埌浠讳綍閲戝爆琛ㄩ潰閮借兘鐢�(ch菐n)鐢熷厜闆绘晥鎳�(y墨ng)锛�
(2) 鑻ュ叆灏勫厜鐨勯牷鐜囧潎澶т簬涓€绲﹀畾閲戝爆鐨勭磪闄�锛屽墖瑭查噾灞垎鍒ュ彈鍒颁笉鍚岄牷鐜囩殑鍏夌収灏�
鏅�(sh铆)锛岄噵鍑虹殑鍏夐浕瀛愮殑鏈€澶у垵鍕�(d貌ng)鑳戒篃涓嶅悓锛�
(3) 鑻ュ叆灏勫厜鐨勯牷鐜囧潎澶т簬涓€绲﹀畾閲戝爆鐨勭磪闄愶紝鍓囪┎閲戝爆鍒嗗垾鍙楀埌涓嶅悓闋荤巼銆佸挤(qi谩ng)搴︾浉绛�
鐨勫厜鐓у皠鏅�(sh铆)锛屽柈浣嶆檪(sh铆)闁撻噵鍑虹殑鍏夐浕瀛愭暩(sh霉)涓€瀹氱浉绛�锛�
(4) 鑻ュ叆灏勫厜鐨勯牷鐜囧潎澶т簬涓€绲﹀畾閲戝爆鐨勭磪闄愶紝鍓囩暥(d膩ng)鍏ュ皠鍏夐牷鐜囦笉璁婅€屽挤(qi谩ng)搴﹀澶т竴鍊�
鏅�(sh铆)锛岃┎閲戝爆鐨勯＝鍜屽厜闆绘祦涔熷澶т竴鍊嶏紟
鍏朵腑姝ｇ⒑鐨勬槸
(A) (1)锛�(2)锛�(3)锛�
(B) (2)锛�(3)锛�(4)锛�
(C) (2)锛�(3)锛�
(D) (2)锛�(4)锛�
锛� 锛�
13 纭寲閹�(CdS)鏅堕珨鐨勭甯跺搴︾偤 2.42 eV锛岃浣块€欑ó鏅堕珨鐢�(ch菐n)鐢熸湰寰佸厜闆诲皫(d菐o)锛屽叆灏勫埌鏅堕珨
涓婄殑鍏夌殑娉㈤暦(zh菐ng)涓嶈兘澶т簬
(A) 650 nm锛� (1 nm = 10?9
m) (B) 628 nm锛�
(C) 550 nm锛� (D) 514 nm锛� 锛� 锛�
(鏅湕鍏嬪父閲� h =6.63脳10
-34
J路s锛屽熀鏈浕鑽� e =1.60脳10
-19
C)
S1
S2
P
鍏� 6 闋�(y猫)绗� 4 闋�(y猫)
14 鎸夌収鍘熷瓙鐨勯噺瀛愮悊璜�锛屽師瀛愬彲浠ラ€氶亷(gu貌)鑷櫦(f膩)杓诲皠鍜屽彈婵€杓诲皠鐨勬柟寮忕櫦(f膩)鍏�锛屽畠鍊戞墍鐢�(ch菐n)鐢熺殑
鍏夌殑鐗归粸(di菐n)鏄細
(A) 鍏╁€�(g猫)鍘熷瓙鑷櫦(f膩)杓诲皠鐨勫悓闋荤巼鐨勫厜鏄浉骞茬殑锛屽師瀛愬彈婵€杓诲皠鐨勫厜鑸囧叆灏勫厜鏄笉鐩稿共
鐨勶紟
(B) 鍏╁€�(g猫)鍘熷瓙鑷櫦(f膩)杓诲皠鐨勫悓闋荤巼鐨勫厜鏄笉鐩稿共鐨�锛屽師瀛愬彈婵€杓诲皠鐨勫厜鑸囧叆灏勫厜鏄浉骞�
鐨勶紟
(C) 鍏╁€�(g猫)鍘熷瓙鑷櫦(f膩)杓诲皠鐨勫悓闋荤巼鐨勫厜鏄笉鐩稿共鐨勶紝鍘熷瓙鍙楁縺杓诲皠鐨勫厜鑸囧叆灏勫厜鏄笉鐩稿共
鐨勶紟
(D) 鍏╁€�(g猫)鍘熷瓙鑷櫦(f膩)杓诲皠鐨勫悓闋荤巼鐨勫厜鏄浉骞茬殑锛屽師瀛愬彈婵€杓诲皠鐨勫厜鑸囧叆灏勫厜鏄浉骞�
鐨勶紟 锛� 锛�
浜屻€佸～绌洪(鏈鍏� 6 灏忛,鍏� 20 鍒�)
15 锛�3 鍒嗭級璩�(zh矛)閲忕偤 m 鐨勭墿楂�锛岀疆浜庨浕姊収(n猫i)锛岄浕姊互
2
1
g 鐨勫姞閫熷害鍕诲姞閫熶笅闄� h锛屽湪姝ら亷(gu貌)绋�
涓�锛岄浕姊皪(du矛)鐗╅珨鐨勪綔鐢ㄥ姏鎵€鍋氱殑鍔熺偤_(k膩i)_________锛�
16 锛�3 鍒嗭級濡傚湒鎵€绀�锛屼竴娈甸暦(zh菐ng)搴︾偤 l 鐨勭洿灏�(d菐o)绶� MN锛屾按骞虫斁缃湪
杓夐浕娴佺偤 I 鐨勮睅鐩撮暦(zh菐ng)灏�(d菐o)绶氭梺鑸囪睅鐩村皫(d菐o)绶氬叡闈�锛屽苟寰為潨姝㈢敱鍦栫ず浣�
缃嚜鐢变笅钀�锛屽墖 t 绉掓湯灏�(d菐o)绶氬叐绔殑闆诲嫝(sh矛)宸�
?? NM UU ______________________锛�
17 锛�4 鍒嗭級鐣�(d膩ng)涓€鍒楃伀杌�(ch膿)浠� 10 m/s 鐨勯€熺巼鍚戞澅琛岄鏅�(sh铆)锛岃嫢鐩稿皪(du矛)浜�
鍦伴潰璞庣洿涓嬭惤鐨勯洦婊村湪鍒楄粖(ch膿)鐨勭獥瀛愪笂褰㈡垚鐨勯洦璺″亸闆㈣睅鐩存柟鍚� 30掳锛屽墖闆ㄦ淮鐩稿皪(du矛)浜庡湴闈㈢殑
閫熺巼鏄痏_________锛涚浉灏�(du矛)浜庡垪杌�(ch膿)鐨勯€熺巼鏄痏_________锛�
18 锛�3 鍒嗭級鏈変竴璩�(zh矛)閲忕偤 m锛�5 kg 鐨勭墿楂�锛屽湪 0 鍒� 10 绉掑収(n猫i)锛屽彈鍒�
濡傚湒鎵€绀虹殑璁婂姏 F 鐨勪綔鐢紟鐗╅珨鐢遍潨姝㈤枊(k膩i)濮嬫部 x 杌告鍚戦亱(y霉n)鍕�(d貌ng)锛屽姏
鐨勬柟鍚戝绲傜偤 x 杌哥殑姝ｆ柟鍚戯紟鍓� 10 绉掑収(n猫i)璁婂姏 F 鎵€鍋氱殑鍔熺偤
____________锛�
19锛�3 鍒嗭級涓€浣滃畾杌歌綁(zhu菐n)鍕�(d貌ng)鐨勭墿楂�锛屽皪(du矛)杞�(zhu菐n)杌哥殑杞�(zhu菐n)鍕�(d貌ng)鎱ｉ噺 J锛�3.0 kg路m2
锛�
瑙掗€熷害??0锛�6.0 rad/s锛庣従(xi脿n)灏�(du矛)鐗╅珨鍔犱竴鎭掑畾鐨勫埗鍕�(d貌ng)鍔涚煩 M 锛濓紞12
N路m锛岀暥(d膩ng)鐗╅珨鐨勮閫熷害娓涙參鍒�?锛�2.0 rad/s 鏅�(sh铆)锛岀墿楂斿凡杞�(zhu菐n)閬�(gu貌)浜嗚搴�???锛漘________________锛�?
20锛�4 鍒嗭級鏈変竴鍚岃桓闆荤簻锛屽叾灏哄濡傚湒鎵€绀�锛屽畠鐨勫収(n猫i)澶栧叐灏�(d菐o)楂斾腑鐨勯浕娴�
鍧囩偤 I锛屼笖鍦ㄦ┇鎴潰涓婂潎鍕诲垎甯�锛屼絾浜岃€呴浕娴佺殑娴佸悜姝ｇ浉鍙嶏紝鍓�
(1) 鍦� r < R1 铏曠鎰熷挤(qi谩ng)搴﹀ぇ灏忕偤_(k膩i)_______________锛�
(2) 鍦� r > R3 铏曠鎰熷挤(qi谩ng)搴﹀ぇ灏忕偤_(k膩i)_______________锛�
涓�銆佽▓(j矛)绠楅(鏈鍏辫▓(j矛) 63 鍒�,鍏辫▓(j矛) 9 椤�)
21锛�5 鍒嗭級绲﹂浕瀹圭偤 C 鐨勫钩琛屾澘闆诲鍣ㄥ厖闆�锛岄浕娴佺偤 i = 0.2e
-t
( SI )锛宼 = 0 鏅�(sh铆)闆诲鍣ㄦサ鏉夸笂
鐒�(w煤)闆昏嵎锛庢眰锛�
(1) 妤垫澘闁撻浕澹� U 闅ㄦ檪(sh铆)闁� t 鑰岃畩鍖栫殑闂�(gu膩n)绯伙紟
M N
a
l
I
20
40
105
t(s)
F(N)
O
R1
R3
R2
II
鍏� 6 闋�(y猫)绗� 5 闋�(y猫)
(2) t 鏅�(sh铆)鍒绘サ鏉块枔绺界殑浣嶇Щ闆绘祦 Id (蹇界暐閭婄罚鏁堟噳(y墨ng))锛�
22 锛�5 鍒嗭級濡傚湒鎵€绀�锛屼竴绨�(ji菐n)璜ф尝鍚� x 杌告鍚戝偝鎾�锛�
娉㈤€� u = 500 m/s锛寈0 = 1 m, P 榛�(di菐n)鐨勬尟鍕�(d貌ng)鏂圭▼鐐�
)
2
1
500cos(03.0 ???? ty (SI).
(1) 鎸夊湒鎵€绀哄潗妯�(bi膩o)绯�锛屽(xi臎)鍑虹浉鎳�(y墨ng)鐨勬尝鐨勮〃閬�(d谩)寮�锛�
(2) 鍦ㄥ湒涓婄暙(hu脿)鍑� t = 0 鏅�(sh铆)鍒荤殑娉㈠舰鏇茬窔锛�
23 锛�10 鍒嗭級 闆昏嵎浠ョ浉鍚岀殑闈㈠瘑搴�??鍒嗗竷鍦ㄥ崐寰戠偤 r1锛�10 cm 鍜� r2锛�20 cm 鐨勫叐鍊�(g猫)鍚屽績鐞冮潰
涓婏紟瑷�(sh猫)鐒�(w煤)闄愰仩(yu菐n)铏曢浕鍕�(sh矛)鐐洪浂锛岀悆蹇冭檿鐨勯浕鍕�(sh矛)鐐� U0锛�300 V锛�
(1) 姹傞浕鑽烽潰瀵嗗害?锛�
(2) 鑻ヨ浣跨悆蹇冭檿鐨勯浕鍕�(sh矛)涔熺偤闆�锛屽鐞冮潰涓婃噳(y墨ng)鏀炬帀澶氬皯闆昏嵎锛�
锛�?0锛�8.85脳10
-12
C2
/(N路m2
)锛�
24锛�5 鍒嗭級鍦ㄤ竴鐒�(w煤)闄愰暦(zh菐ng)杓夋湁闆绘祦 I 鐨勭洿灏�(d菐o)绶氱敘(ch菐n)鐢熺殑纾佸牬(ch菐ng)涓�锛屾湁涓€闀�(zh菐ng)搴︾偤 b 鐨勫钩琛屼簬灏�(d菐o)绶氱殑
鐭惖妫掞紝瀹冨€戠浉璺濈偤 a锛庤嫢閻垫浠ラ€熷害v
?
鍨傜洿浜庡皫(d菐o)绶氳垏閻垫鍒濆浣嶇疆绲勬垚鐨勫钩闈㈠嫽閫熼亱(y霉n)鍕�(d貌ng)锛�
姹� t 鏅�(sh铆)鍒婚惖妫掑叐绔殑鎰熸噳(y墨ng)闆诲嫊(d貌ng)鍕�(sh矛) 鐨勫ぇ?銆�?br/>25锛�5 鍒嗭級瑙€瀵熻€� A 娓�(c猫)寰楄垏浠栫浉灏�(du矛)闈滄鐨� Oxy 骞抽潰涓婁竴鍊�(g猫)鍦撶殑闈㈢⿳鏄� 12 cm2
锛屽彟涓€瑙€瀵熻€�
B 鐩稿皪(du矛)浜� A 浠� 0.8 c (c 鐐虹湡绌轰腑鍏夐€�)骞宠浜� Oxy 骞抽潰浣滃嫽閫熺洿绶氶亱(y霉n)鍕�(d貌ng)锛孊 娓�(c猫)寰楅€欎竴鍦栧舰鐐轰竴
姗㈠湏锛屽叾闈㈢⿳鏄灏�锛�
26锛�10 鍒嗭級涓€鐗╅珨鑸囨枩闈㈤枔鐨勬懇鎿︾郴鏁�(sh霉)? = 0.20锛屾枩闈㈠浐瀹�锛屽偩瑙�? =
45掳锛庣従(xi脿n)绲︿簣鐗╅珨浠ュ垵閫熺巼 v 0 = 10 m/s锛屼娇瀹冩部鏂滈潰鍚戜笂婊�锛屽鍦栨墍
绀猴紟姹傦細
(1) 鐗╅珨鑳藉涓婂崌鐨勬渶澶ч珮搴� h锛�
(2) 瑭茬墿楂旈仈(d谩)鍒版渶楂橀粸(di菐n)鍚�锛屾部鏂滈潰杩斿洖鍒板師鍑虹櫦(f膩)榛�(di菐n)鏅�(sh铆)鐨勯€熺巼 v 锛�
27锛�5 鍒嗭級鏈変簩鏍瑰皫(d菐o)绶氾紝鍒嗗垾闀�(zh菐ng) 2 绫冲拰 3 绫�锛屽皣瀹冨€戝綆鎴愰枆鍚堢殑鍦�锛屼笖鍒嗗垾閫氫互闆绘祦 I1 鍜� I2锛�
宸茬煡鍏╁€�(g猫)鍦撻浕娴佸湪鍦撳績铏曠殑纾佹劅寮�(qi谩ng)搴﹀ぇ灏忕浉绛夛紟姹傚湏闆绘祦鐨勬瘮鍊� I1 / I2锛�
28锛�8 鍒嗭級 涓€瀹氶噺鐨勫墰鎬ч洐鍘熷瓙鍒嗗瓙鐞嗘兂姘ｉ珨锛岄枊(k膩i)濮嬫檪(sh铆)铏曚簬澹撳挤(qi谩ng)鐐� p0 = 1.0脳105
Pa锛岄珨绌�
鐐� V0 =4脳10-3
m3
锛屾韩搴︾偤 T0 = 300 K 鐨勫垵鎱�(t脿i)锛屽悗缍�(j墨ng)绛夊鑶ㄨ劰閬�(gu貌)绋嬫韩搴︿笂鍗囧埌 T1 = 450 K锛屽啀
缍�(j墨ng)绲曠啽閬�(gu貌)绋嬫韩搴﹂檷鍥炲埌 T2 = 300 K锛屾眰姘ｉ珨鍦ㄦ暣鍊�(g猫)閬�(gu貌)绋嬩腑灏�(du矛)澶栦綔鐨勫姛锛�
29锛�10 鍒嗭級鍦栦腑鎵€绀虹偤鍦ㄤ竴娆″厜闆绘晥鎳�(y墨ng)瀵�(sh铆)椹�(y脿n)涓緱鍑虹殑鏇茬窔
(1) 姹傝瓑锛氬皪(du矛)涓嶅悓鏉愭枡鐨勯噾灞�锛孉B 绶氱殑鏂滅巼鐩稿悓锛�
(2) 鐢卞湒涓婃暩(sh霉)鎿�(j霉)姹傚嚭鏅湕鍏嬫亽閲� h锛�
(鍩烘湰闆昏嵎 e =1.60脳10
-19
C)
鍥�銆佽瓑鏄庨(鏈鍏辫▓(j矛) 18 鍒�,鍏辫▓(j矛) 2 椤�)
30锛�8 鍒嗭級璩�(zh矛)閲忕偤 m 鐨勬苯杌�(ch膿)锛屽湪姘村钩闈笂娌� x 杌告鏂瑰悜閬�(y霉n)鍕�(d貌ng)锛屽垵濮嬩綅缃� x0
锛�0锛屽緸闈滄闁�(k膩i)濮�
鍔犻€燂紟鍦ㄥ叾鐧�(f膩)鍕�(d貌ng)姗�(j墨)鐨勫姛鐜� P 缍寔涓嶈畩銆佷笖涓嶈▓(j矛)闃诲姏鐨勬浠朵笅锛岃瓑鏄庯細鍦ㄦ檪(sh铆)鍒� t
(1) 鍏堕€熷害琛ㄩ仈(d谩)寮忕偤 mPt /2?v 锛�
x (m)
u
x0
P
y (m)
O
?? h
0v
?
|Ua| (V)
??(脳10
14
Hz)A
B
0
1.0
2.0
5.0 10..0
??
鍏� 6 闋�(y猫)绗� 6 闋�(y猫)
(2) 鍏朵綅缃〃閬�(d谩)寮忕偤 23
)9/(8 tmPx ? 锛�
31锛�10 鍒嗭級瑷�(sh猫)姘師瀛愬厜璀滅殑宸磋€虫湯绯讳腑绗竴姊濊瓬绶�(H?)鐨勬尝闀�(zh菐ng)鐐�??锛岀浜屾璀滅窔(H?)鐨勬尝闀�(zh菐ng)
鐐�??锛岃│璀夋槑锛氬笗閭㈢郴(鐢卞悇楂樿兘鎱�(t脿i)韬嶉伔鍒颁富閲忓瓙鏁�(sh霉)鐐� 3 鐨勫畾鎱�(t脿i)鎵€鐧�(f膩)灏勭殑鍚勮瓬绶氱祫鎴愮殑璀滅窔
绯�)涓殑绗竴姊濊瓬绶氱殑娉㈤暦(zh菐ng)鐐�
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浜�銆佸洖绛斿晱(w猫n)椤�(鏈鍏辫▓(j矛) 7 鍒�,鍏辫▓(j矛) 1 椤�)
32 锛�7 鍒嗭級鎸囧嚭涓€绋脯(c猫)閲忎笉閫忔槑浠嬭唱(zh矛)鎶樺皠鐜囨柟娉曪紝骞剁啊(ji菐n)鏄庢晿杩版脯(c猫)閲忓師鐞嗗強姝ラ銆�
鍏嶈铂(z茅)鑱叉槑锛氭湰鏂囩郴杞�(zhu菐n)杓夎嚜缍�(w菐ng)绲�(lu貌)锛屽鏈変镜鐘�锛岃珛(q菒ng)鑱�(li谩n)绯绘垜鍊戠珛鍗冲埅闄わ紝鍙︼細鏈枃鍍呬唬琛ㄤ綔鑰呭€�(g猫)浜鸿榛�(di菐n)锛岃垏鏈恫(w菐ng)绔欑劇(w煤)闂�(gu膩n)銆傚叾鍘熷壍(chu脿ng)鎬т互鍙婃枃涓櫝杩版枃瀛楀拰鍏�(n猫i)瀹规湭缍�(j墨ng)鏈珯璀夊(sh铆)锛屽皪(du矛)鏈枃浠ュ強鍏朵腑鍏ㄩ儴鎴栬€呴儴鍒嗗収(n猫i)瀹�銆佹枃瀛楃殑鐪熷(sh铆)鎬с€佸畬鏁存€�銆佸強鏅�(sh铆)鎬ф湰绔欎笉浣滀换浣曚繚璀夋垨鎵胯锛岃珛(q菒ng)璁€鑰呭儏浣滃弮鑰�锛屽苟璜�(q菒ng)鑷鏍稿(sh铆)鐩搁棞(gu膩n)鍏�(n猫i)瀹广€�
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