《2018-2018学年河南省信阳市息县中考物理模拟试题（参考答案）.doc》由会员分享，可在线阅读，更多相关《2018-2018学年河南省信阳市息县中考物理模拟试题（参考答案）.doc（6页珍藏版）》请在三一文库上搜索。
1、2018-2018学年河南省信阳市息县中考物理模拟试题（参考答案）DIV.MyFav_1244095178244 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 15.6pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1244095178244 LI.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGI
2、N: 0cm 0cm 0pt; LINE-HEIGHT: 15.6pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1244095178244 DIV.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 15.6pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1244095178244 P.MsoHeaderB
3、ORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; FONT-SIZE: 9pt; PADDING-BOTTOM: 0cm; MARGIN: 0cm 0cm 0pt; BORDER-LEFT: medium none; LAYOUT-GRID-MODE: char; LINE-HEIGHT: 12pt; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; FONT-FAMILY: Times New Roman; TEXT-AL
4、IGN: centerDIV.MyFav_1244095178244 LI.MsoHeaderBORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; FONT-SIZE: 9pt; PADDING-BOTTOM: 0cm; MARGIN: 0cm 0cm 0pt; BORDER-LEFT: medium none; LAYOUT-GRID-MODE: char; LINE-HEIGHT: 12pt; PADDING-TOP: 0cm; BORDER-BOTTOM: me
5、dium none; FONT-FAMILY: Times New Roman; TEXT-ALIGN: centerDIV.MyFav_1244095178244 DIV.MsoHeaderBORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; FONT-SIZE: 9pt; PADDING-BOTTOM: 0cm; MARGIN: 0cm 0cm 0pt; BORDER-LEFT: medium none; LAYOUT-GRID-MODE: char; LINE-
6、HEIGHT: 12pt; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; FONT-FAMILY: Times New Roman; TEXT-ALIGN: centerDIV.MyFav_1244095178244 P.MsoFooterFONT-SIZE: 9pt; MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; LINE-HEIGHT: 12pt; FONT-FAMILY: Times New RomanDIV.MyFav_1244095178244 LI.MsoFooterFONT-SIZE: 9p
7、t; MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; LINE-HEIGHT: 12pt; FONT-FAMILY: Times New RomanDIV.MyFav_1244095178244 DIV.MsoFooterFONT-SIZE: 9pt; MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; LINE-HEIGHT: 12pt; FONT-FAMILY: Times New RomanDIV.MyFav_1244095178244 P.MsoBodyTextIndentTEXT-JUSTIFY: int
8、er-ideograph; FONT-SIZE: 14pt; MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 56pt; FONT-FAMILY: 新宋体; TEXT-ALIGN: justifyDIV.MyFav_1244095178244 LI.MsoBodyTextIndentTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 14pt; MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 56pt; FONT-FAMILY: 新宋体; TEXT-ALIGN: justifyDIV.MyFav_1244095178244
9、 DIV.MsoBodyTextIndentTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 14pt; MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 56pt; FONT-FAMILY: 新宋体; TEXT-ALIGN: justifyDIV.MyFav_1244095178244 DIV.Section1page: Section1DIV.MyFav_1244095178244 OLMARGIN-BOTTOM: 0cmDIV.MyFav_1244095178244 ULMARGIN-BOTTOM: 0cm一、填空题1响度 能量2112
10、70 力越大物体的形变程度越大33108m/s 增大压力4改变物体的形状5自己 36发声体的震动 音调7平面镜成像（或光的反射） 镜面8震动 音调9浮力 排开液体的重力104：1二、选择题11D12A13C14D15D16C17C18D19A20C三、作图题（略）四、实验探究题23浸入液体的体积越大，受到的浮力越大。（1分）浸没时深度改变，物体所受的浮力不变。（1分） （1分）（3分）把鸡蛋放入清水中，鸡蛋沉入水底，此时鸡蛋受的浮力小于受到的重力。向烧杯中加入食盐，改变液体的密度，直至鸡蛋上浮到液面。浮力等于鸡蛋的重力。结论：液体的密度变大，物体受的浮力变大。（注意：本题不能增加器材）2447
11、4 （1分）（2）首先测出空瓶的质量M1=14g（1分）测出装满水后，水和瓶的总质量M2=44g（1分）倒出水，再测出装满酱油和瓶的总质量M3=474g（1分）（3）V水=M水/水=（M2-M1）/水V瓶=V水=V酱油酱油=M酱油/V酱油=（M3-M1）/（M2-M1）水（2分）25 1 2 20 04 二力平衡 40 小于20 （每空1分）五、综合运用题26F浮=G排=0.5N (2分)(2)V物=V排=G排/水g=0.510-4m3(2分)（3）盐=物=M物/V物=1.1103kg/m3(2分)27.(1)跑跑鼠的平均速度大 (1分)(2)t1=s1/v1=7m/3.5m/s=2st2=t1v2=s2/t2=5m/2s=2.5m/s (3分)