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22
灏忛锛屾弧鍒?/p>
90
鍒嗐�傜墿鐞嗕笌鍖栧鐨勮�冭瘯鏃堕棿鍏?/p>
120
鍒嗛挓銆?/p>
涓�銆佸～绌洪
锛?/p>
(
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1
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3
棰樻病绌?/p>
1
鍒嗭紝鍏朵綑鍚勯姣忕┖
2
鍒嗭紝鍏?/p>
28
鍒嗭紱灏嗙瓟妗堢洿鎺?/p>
鍐欏湪妯嚎涓?/p>
)
1.
瀹屾垚涓嬪垪鍗曚綅鎹㈢畻锛?/p>
锛?/p>
1
锛?/p>
0.8g/cm
3
=__________kg/m
3
锛?/p>
锛?/p>
2
锛?/p>
360km/h=________m/s
2.
鍚勭绠′箰鍣ㄥ湪婕斿鏃讹紝涔愰煶鏄涓┖姘旀煴鐨勬尟鍔ㄤ骇鐢熺殑銆傚湪杩涜绠′箰鍣ㄧ殑婕斿
杩囩▼涓紝褰撶敤鎵嬫寚鍫典綇绠′笂涓嶅悓浣嶇疆鐨勫瓟鏃讹紝灏辨敼鍙樹簡鎸姩閮ㄥ垎绌烘皵鏌辩殑闀垮害锛?/p>
浠庤�屾敼鍙樹簡鎵�浜х敓鐨勪箰闊崇殑
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3.
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_________
锛堥�夊～鈥滃澶р�濇垨鈥滃噺灏忊�?/p>
锛夊畠鐨勬儻鎬э紝浠ユ彁楂樺畠鐨勭伒娲绘�с�?/p>
4.
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瀛愬湪鍋?/p>
_____________________
銆傛墍浠ュ湪浠讳綍娓╁害涓嬶紝钂稿彂鐜拌薄閮藉彲鑳藉彂鐢燂紱娓?/p>
搴﹁秺楂橈紝鍒嗗瓙鐨?/p>
______________________________
锛屼粠鑰岃捀鍙戣秺蹇�?/p>
5.
濡傚浘鎵�绀虹殑鐢佃矾涓紝鐢垫簮鐢靛帇淇濇寔
6V
涓嶅彉锛岀數闃?/p>
R
1
锛?/p>
10
惟锛?/p>
R
2
锛?/p>
20
惟锛岄棴鍚?/p>
寮�鍏?/p>
s
锛屽垯
R
1
娑堣�楃殑鐢靛姛鐜囦负
________W
锛涜嫢閫氱數
30s
锛岀數闃?/p>
R
2
浜х敓鐨勭儹閲忎负
________J
銆?/p>
6.
鏀�宀╂槸涓�椤规寫鎴樿嚜鐒讹紝瓒呰秺鑷垜鐨勬儕闄╄繍鍔ㄣ�備竴浣嶆攢宀╄�呬綋閲嶄负
520N
锛岃儗鐫�
鐢熶负
8kg
鐨勮儗鍖咃紝鐢ㄦ椂
40min
鐧讳笂楂樹负
9m
鐨勫抄澹併�傚湪姝よ繃绋嬩腑鏀�宀╄�呭鑳屽寘鍋?/p>
鍔?/p>
________J
锛屼粬鍋氬姛鐨勫钩鍧囧姛鐜囨槸
_________W
銆?/p>
锛?/p>
g
鍙?/p>
10N/kg
锛?/p>
7.
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褰撳绾夸腑鏈夌數娴侀�氳繃鏃讹紝
灏忕閽堝氨浼氬彂鐢熷亸杞�?/p>
璇疯繍鐢ㄥ満鐨勮鐐硅В閲婂皬纾侀拡鍙戠敓
鍋?/p>
杞?/p>
鐨?/p>
鍘?/p>
鍥?/p>
:_______________________________________________________________
銆?/p>
8.
鍒囧壊澶х悊鐭炽�侀挗鏉跨殑鈥滄按鍒�鈥濆彲浠ュ垏鍓茶〃闈骇鐢熼珮澶?/p>
10
8
Pa
鐨勫帇寮猴紝閭ｄ箞鈥滄按
鍒�鈥濅綔鐢ㄥ湪
10
锛?/p>
7
m
2
鐨勯潰绉笂鏃讹紝浜х敓鐨勫帇鍔涗负
_________N
銆?/p>
9.
鏌愬お闃宠兘鐑按鍣ㄨ鏈?/p>
100kg
鍒濇俯涓?/p>
20
鈩冪殑鍐锋按锛岀粡杩囦竴澶╃殑澶槼鐓у皠锛?/p>
姘存俯鍗囬珮鍒?/p>
65
鈩冿紝鍒欒繖浜涙按鍚告敹鐨勭儹閲忕瓑浜庡畬鍏ㄧ噧鐑?/p>
________m
3
澶╃劧
姘旀墍鏀惧嚭鐨勭儹閲忥紱鍋囧鐢ㄥ姛鐜囦负
2kW
鐨勭數鐑按鍣ㄤ骇鐢熷悓鏍峰鐨勭儹閲忥紝
鍒欓�氱數鐨勬椂闂翠负
_______s
銆?/p>
锛堝凡鐭ユ按鐨勬瘮鐑涓?/p>
4.2
脳
10
3
J/(kg.
鈩?/p>
)
銆?/p>
澶╃劧姘旂殑鐑�间负
4.2
脳
10
7
J/m
3
锛?/p>