中学生网络课堂本课配套习题挑战模式1/5
有关地磁场，下列说法正确的是（ ）
| A: 指南针总指南北，是因为受到了地磁场的作用 |
| B: 地磁两极与地理两极完全重合 |
| C: 地球周围的地磁场的磁感线是从地磁南极出发到地磁北极 |
| D: 我国宋代学者沈括正确找到了地磁场产生的原因 |
- 提示1：PHA+5Zyw55CD5pys6Lqr5piv5LiA5Liq5aSn56OB5L2TPC9wPg==
- 提示2：PHA+5Zyw56OB55qE5YyX5p6B5Zyo5Zyw55CG55qE5Y2X5p6B6ZmE6L+R77yM5Zyw56OB55qE5Y2X5p6B5Zyo5Zyw55CG55qE5YyX5p6B6ZmE6L+RPGJyPjwvcD4=
- 提示3：PHA+5rKI5ous5Y+R546w5LqG56OB5YGP6KeSPC9wPg==
- 答案：QQ==
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
本课配套习题挑战模式2/5
下列关于地磁场的说法正确的是（ ）
| A: 地理北极附近有地磁北极 |
| B: 地理南极附近有地磁南极 |
| C: 地磁场的方向是不确定的 |
| D: 地理北极附近有地磁南极，地理南极附近有地磁北极 |
- 提示1：PHA+5Zyw55CD5piv5Liq5beo5aSn55qE56OB5L2TPC9wPg==
- 提示2：PHA+5Zyw55CD5ZGo5Zu05a2Y5Zyo552A56OB5Zy6PC9wPg==
- 提示3：PHA+5Zyw56OB5YyX5p6B5Zyo5Zyw55CG5Y2X5p6B6ZmE6L+R77yM5Zyw56OB5Y2X5p6B5Zyo5Zyw55CG5YyX5p6B6ZmE6L+RPC9wPg==
- 答案：RA==
PHA+5Zyw55CG5YyX5p6B6ZmE6L+R5piv5Zyw56OB5Y2X5p6BLiBB6ZSZLiDlnLDnkIbljZfmnoHpmYTov5HmmK/lnLDno4HljJfmnoEuIELplJkuIOWcsOeQg+S4iuS7u+S4gOeCueeahOWcsOejgeWcuueahOaWueWQkeaYr+S4jeWPmOeahO+8jEPplJkuIOWcsOeQhuWMl+aegeeahOmZhOi/keaYr+WcsOejgeWNl+aege+8jOWcsOeQhuWNl+aegeeahOmZhOi/keaYr+WcsOejgeWMl+aegS4gROespuWQiOmimOaEjy4g5pWF6YCJRC48L3A+
本课配套习题挑战模式3/5
下列关于地磁场的说法正确的是（ ）
| A: 地球的南极对应地磁的南极 |
| B: 地球的北极对应地磁的南极 |
| C: 地球的南北极磁性比地球赤道处的磁性小 |
| D: 地球赤道处的小磁针静止时N极指向地球南极 |
- 提示1：PHA+5Zyw55CD5piv5Liq5beo5aSn55qE56OB5L2TPC9wPg==
- 提示2：PHA+5Zyw55CD5ZGo5Zu05a2Y5Zyo552A56OB5Zy6PC9wPg==
- 提示3：PHA+56OB5p6B5piv56OB5oCn5pyA5by655qE5Zyw5pa5PC9wPg==
- 答案：Qg==
PHA+5Zyw55CG5Y2X5p6B6ZmE6L+R5piv5Zyw56OB5YyX5p6BLiBB5LiN56ym5ZCI6aKY5oSPLiDlnLDnkIbljJfmnoHpmYTov5HmmK/lnLDno4HljZfmnoEuIELnrKblkIjpopjmhI8uIOWcsOeQg+eahOWNl+WMl+aegeejgeaAp+avlOWcsOeQg+i1pOmBk+WkhOeahOejgeaAp+W8ui4gQ+S4jeespuWQiOmimOaEjy4g5pS+5Zyo5Zyw55CD6LWk6YGT5aSE55qE5bCP56OB6ZKI6Z2Z5q2i5pe2TuaegeaMh+WQkeWcsOeQg+WMl+aegS4gROS4jeespuWQiOmimOaEjy4g5pWF6YCJQi48L3A+
本课配套习题挑战模式4/5
下列关于地磁场的说法正确的是（ ）
| A: 地球位置的南、北极即为地磁场的南、北极 |
| B: 地磁场的磁感线是不闭合曲线 |
| C: 在赤道上的小磁针的N极在静止时指向地球南极 |
| D: 在赤道上的小磁针的N极在静止时指向地球北极 |
- 提示1：PHA+5Zyw55CD5piv5Liq5beo5aSn55qE56OB5L2T77yM5ZGo5Zu05a2Y5Zyo552A56OB5Zy6PGJyPjwvcD4=
- 提示2：PHA+5bCP56OB6ZKI5YyX5p6B5omA5oyH5pa55ZCR5Y2z5Li66K+l54K555qE56OB5Zy65pa55ZCRPGJyPjwvcD4=
- 提示3：PHA+5Zyw56OB5YyX5p6B5Zyo5Zyw55CG5Y2X5p6B6ZmE6L+R77yM5Zyw56OB5Y2X5p6B5Zyo5Zyw55CG5YyX5p6B6ZmE6L+RPC9wPg==
- 答案：RA==
PHA+5Zyw55CG5YyX5p6B6ZmE6L+R5piv5Zyw56OB5Y2X5p6B77yM5Zyw55CG5Y2X5p6B6ZmE6L+R5piv5Zyw56OB5YyX5p6B77yO5pWFQeS4jeespuWQiOmimOaEj++8juWcsOejgeWcuueahOejgeaEn+e6v+aYr+mXreWQiOeahO+8jOS4jeebuOS6pOeahOabsue6v++8juaVhULkuI3nrKblkIjpopjmhI/vvI7op4TlrprlsI/no4HpkohO5p6B6Z2Z5q2i5pe25oyH5ZCR5Li656OB5Zy655qE5pa55ZCR77yM5Zug5q2k5Zyo6LWk6YGT5LiK55qE5bCP56OB6ZKI55qETuaegeWcqOmdmeatouaXtuaMh+WQkeWcsOeQg+WMl+aege+8juaVhUPkuI3nrKblkIjpopjmhI/vvIxE56ym5ZCI6aKY5oSP77yOPGJyPjwvcD4=
本课配套习题挑战模式5/5
下列关于地磁场的说法不正确的是（ ）
| A: 地磁的两极与地理的两极不完全重合 |
| B: 地球是一个巨大的磁体，周围存在地磁场 |
| C: 最早发现磁偏角的是我国宋朝的沈括 |
| D: 若能将指南针放在地心，则它的N极指向地球北极 |
- 提示1：PHA+5Zyw55CD5piv5Liq5beo5aSn55qE56OB5L2T77yM5ZGo5Zu05a2Y5Zyo5Zyw56OB5Zy6PC9wPg==
- 提示2：PHA+5oiR5Zu955qE5rKI5ous5pyA5pep5Y+R546w5LqG56OB5YGP6KeSPC9wPg==
- 提示3：PHA+56OB5oSf57q/5piv6Zet5ZCI5puy57q/77yM5Zyw55CD5YaF6YOo55qE56OB5oSf57q/5piv5LuOU+aegeWIsE7mnoE8L3A+
- 答案：RA==
PHA+5Zyw55CD5piv5Liq5beo5aSn55qE56OB5L2T77yM5ZGo5Zu05a2Y5Zyo5Zyw56OB5Zy6LiDlnLDno4HljJfmnoHlnKjlnLDnkIbljZfmnoHpmYTov5HvvIzlnLDno4HljZfmnoHlnKjlnLDnkIbljJfmnoHpmYTov5EuIOWcsOejgeeahOS4pOaegeS4juWcsOeQhueahOS4pOaegeS4jeWujOWFqOmHjeWQiO+8jOWtmOWcqOejgeWBj+inku+8jOaIkeWbveayiOaLrOacgOaXqeWPkeeOsC4g5Zyw55CD5YaF6YOo55qE56OB5oSf57q/5piv5LuO5Zyw56OBU+aegeWIsE7mnoHvvIzlm6DmraToi6Xog73lsIbmjIfljZfpkojmlL7lnKjlnLDlv4PvvIzliJnlroPnmoRO5p6B5oyH5ZCR5Zyw55CD55qE5Y2X5p6BLiDmlYVE6ZSZ6K+vPGJyPjwvcD4=
