缂栧彿
锛?/p>
3
鍏勾绾т笂鍐岀墿鐞嗗瀛︽
涓诲锛?/p>
绉戠粍闀垮鏍革細
骞寸骇缁勫鏍革細
瀛︽灏忎富浜猴細
鐝?nbsp; 绾э細
缁?nbsp; 娆★細
璇?/p>
棰?/p>
缁煎悎搴旂敤棰樹笓椤瑰涔?/p>
璇惧瀷
棰勪範+灞曠ず
瀛︿範鐩爣
1.
璁╁鐢熺啛缁冩帉鎻″叓骞寸骇涓嬪唽閲嶇偣鍏紡銆?/p>
2.
鑳界伒娲诲湴杩愮敤鍏紡瑙ｇ瓟鏈夊叧鐗╃悊闂銆?/p>
3.
浣垮鐢熸帉鎻¤В绛旂墿鐞嗙患鍚堝簲鐢ㄩ鐨勬柟娉?/p>
瀛︿範閲嶇偣
涓庨毦鐐?/p>
1
閲嶇偣锛氬帇寮恒�佸姛銆佸姛鐜囩殑璁＄畻
2.
闅剧偣锛氬帇寮恒�佹诞鍔涖�佸姛銆佸姛鐜囥�佹粦杞粍鏈烘鏁堢巼鐨勮绠?/p>
瀛︿範鏂规硶
鑷富瀛︿範銆佽璁恒�佸睍绀烘硶
瀛︿範杩囩▼
涓�銆佺煡璇嗗洖椤撅細
1 .
瀵嗗害鍏紡
鐗╃悊閲?/p>
鍗曚綅
蟻鈥斺�斿瘑搴?/p>
kg/m3 g/cm3
m
鈥斺�旇川閲?/p>
kg g
V
鈥斺�斾綋绉?/p>
m3 cm3
鍗曚綅鎹㈢畻锛?/p>
1kg=103 g 1g/cm3=1
脳
103kg/m3
1m3=106cm3 1L=1dm3 1mL=1cm3
2.
閲嶅姏涓庤川閲忕殑鍏崇郴锛?/p>
鍏紡锛?/p>
G = mg
鐗╃悊閲?/p>
鍗曚綅
G
鈥斺�旈噸鍔?/p>
N
m
鈥斺�旇川閲?/p>
kg g
鈥斺�旈噸鍔涗笌璐ㄩ噺鐨勬瘮鍊?/p>
g=9.8N/kg
锛涚矖鐣ヨ绠楁椂鍙?/p>
g=10N/kg
銆?/p>
鍏紡鍙樺舰
:m=G/g
3
娴姏鍏紡
锛?/p>
1
锛?/p>
. F
娴?/p>
=G
鈥?/p>
F(
瀹為獙鎺㈢┒娉?/p>
)
F
娴�斺�旀诞鍔?/p>
鐗╃悊閲?/p>
锛?/p>
G
鈥斺�旂墿浣撶殑閲嶅姏
鍗曚綅
N
F
鈥斺�旂墿浣撴蹈鍏ユ恫浣撲腑寮圭哀绉ょ殑绀烘暟