绗竴閮ㄥ垎
鐭ヨ瘑鐐规⒊鐞?/p>
绗竴绔?/p>
鏈烘杩愬姩
鑰冪偣娓呭崟
鑰冪偣涓�
闀垮害鍜屾椂闂寸殑娴嬮噺
1.
闀垮害鐨勬祴閲?/p>
锛?/p>
1
锛夋祴閲忓伐鍏凤細鍒诲害灏恒�佺背灏恒�佺毊鍗峰昂銆佹父鏍囧崱灏恒�佹縺鍏夋祴璺濅华绛夈�?/p>
锛?/p>
2
锛夊崟浣嶏細鍥介檯涓诲崟浣嶆槸绫筹紙
m
锛?/p>
锛涘叾浠栧崟浣嶆湁锛氬崈绫筹紙
Km
锛?/p>
銆佸垎绫筹紙
dm
锛?/p>
銆佸帢绫筹紙
cm
锛?/p>
銆?/p>
姣背锛?/p>
mm
锛?/p>
銆佸井绫筹紙渭
m
锛?/p>
銆佺撼绫筹紙
nm
锛?/p>
銆?/p>
1 Km=1000 m
锛?/p>
1 dm=0.1m
锛?/p>
1 cm=10
-2
m
锛?/p>
1 mm=10
-3
m
锛?/p>
1
渭
m =10
-6
m
锛?/p>
1 nm =10
-9
m
锛?/p>
3
锛夋祴閲忥細瑕佸仛鍒板洓浼?/p>
锛?/p>
浼氭斁锛堝埢搴﹀昂涓庤娴嬮暱搴﹀钩琛岋級
锛涗細鐪嬶紙瑙嗙嚎涓庡昂闈㈠瀭鐩达級
锛?/p>
浼氳锛堟暟鎹寘鎷噯纭暟瀛楋紝浼拌鏁板瓧鍜屽崟浣嶏級
锛涗細浣跨敤纾ㄦ崯鍒诲害灏哄疄琛屾祴閲忋�?/p>
2.
鏃堕棿鐨勬祴閲?/p>
锛?/p>
1
锛夋祴閲忓伐鍏凤細绉掕〃銆佹墜琛ㄧ瓑銆?/p>
锛?/p>
2
锛夊崟浣嶏細鍥介檯涓诲崟浣嶆槸绉掞紙
s
锛?/p>
锛涘父鐢ㄧ殑鍗曚綅鏈夊皬鏃讹紙
h
锛夊垎锛?/p>
min
锛夌瓑
銆?/p>
1h= 60 min= 360 s.
锛?/p>
3
锛夋祴閲忥細绱Н娉曚及娴嬫椂闂达紝姣斿娴嬭剦鎼忚烦涓�娆＄殑鏃堕棿锛氬厛鐢ㄧ琛ㄦ祴鑴夋悘璺宠嫢骞叉鎵�鑺?/p>
鐨勬椂闂达紝鍐嶇敤鏃堕棿闄や互娆℃暟寰楀埌鑴夋悘璺充竴娆℃墍鑺辩殑鏃堕棿銆?/p>
鑰冪偣浜?/p>
杩愬姩鐨勬弿杩?/p>
1.
鏈烘杩愬姩
鐗╀綋浣嶇疆鐨勫彉鍖栧彨鏈烘杩愬姩锛堟垨涓�涓墿浣撶浉瀵逛簬鍙︿竴涓墿浣?/p>
浣嶇疆
鐨勬敼鍙樺彨鏈烘杩愬姩锛?/p>
2.
鍙傜収鐗?/p>
鍋囧畾涓嶅姩鐨勭墿浣撲负鍙傜収鐗╋紝鍙傜収鐗╃殑閫夋嫨鏄换鎰忕殑锛涢�夋嫨涓嶅悓鐨勫弬鐓х墿锛岀墿浣撶殑杩愬姩鎯?/p>
鍐典笉鍚岋紝杩愬姩鍜岄潤姝㈡槸鐩稿鐨勩�?/p>
鑰冪偣涓夈�佽繍鍔ㄧ殑蹇參
1.
閫熷害
琛ㄧず鐗╀綋杩愬姩蹇參鐨勭墿鐞嗛噺锛?/p>
鏄寚鐗╀綋鍦ㄥ崟浣嶆椂闂村唴閫氳繃鐨勮矾绋嬶紝
鍏紡
v=s/t,
鍥介檯鍗曚綅鏄?/p>
绫虫瘡绉掞紙
m/s
锛?/p>
銆?/p>
2.
鍖�閫熺洿绾胯繍鍔ㄥ拰鍙橀�熺洿绾胯繍鍔ㄧ殑鍖哄埆
鍖?/p>
鍒?/p>
鍖�
閫?/p>
鐩?/p>
绾?/p>
杩?/p>
鍔?/p>
鍖�
閫?/p>
鐩?/p>
绾?/p>
杩?/p>
鍔?/p>
鐗?/p>
鐐?/p>
杩愬姩杩囩▼涓紝
閫熷害鐨勫ぇ灏忓拰鏂瑰悜涓嶅彉
杩愬姩杩囩▼涓�熷害鍙樺寲
姹?/p>
閫?/p>
搴?/p>
鐢?/p>
v=s/t
姹傞�熷害
鐢?/p>
v
=s/t
姹傝矾绋?/p>
s
鍐呯殑骞冲潎閫熷害
鍩虹妫�娴?/p>
1
.
濡堝鐢ㄧ數鍔ㄨ溅閫佸皬鏄庝笂瀛︼紝閫斾腑濡堝鎻愰啋灏忔槑鈥滃潗濂斤紝鍒姩锛?/p>
鈥?/p>
銆傝繖涓�滃埆鍔ㄢ�濈殑鍙傜収
鐗╂槸锛?/p>
A
锛?/p>
A
.
鐢靛姩杞︿笂鐨勫骇浣?/p>
B
.
璺梺鐨勬爲鏈?/p>
C
.
杩庨潰璧版潵鐨勮浜?/p>
D
.
浠庢梺杈硅秴瓒婄殑姹?/p>
杞?/p>
2
.
灏忔苯杞﹀湪楂橀�熷叕璺笂姝ｅ父琛岄┒锛屽畠鐨勯�熷害鏈�鎺ヨ繎锛?/p>
B
锛?/p>
A
.3m/s
B
.30m/s
C
.300m/s
D
.3000m/s
3
.
涓嬪垪鍥涗釜閫夐」涓紝骞冲潎閫熷害鏈�澶х殑鏄紙
B
锛?/p>
A
.
鑸ā椋炶鍣ㄤ互
11m/s
鐨勯�熷害椋炶
B
.
姹借溅浠?/p>
50km/h
鐨勯�熷害鍦ㄥ叕璺笂琛岄┒
C
.
鐧剧背璧涜窇涓繍鍔ㄥ憳鐢?/p>
10s
鏃堕棿璺戝畬鍏ㄧ▼
D
.
浠?/p>
30m
楂樺嚭绔栫洿涓嬭惤鍒板湴闈㈢殑鐗╀綋鐢ㄤ簡
2
.5s