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日本代购-DVD わかるよ! 電流・電磁石 小学生の理科【在庫有 13時迄即日発送可 最短翌日配達】知育 教材 幼児 子供 小学生 家庭学習 自宅学習 宿題 勉強 中学受験 にっく映像 理科 中学受験向けセレクト
  • chaoone:10001214
  • 日本国内邮费另付 价格包含消费税 普通店铺
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日本代购-メーカー希望小売価格はメーカーカタログに基づいて掲載しています 商品説明 DVD(46分)『わかるよ!電流・電磁石-小学生の理科- DVD』【知育教材】【子供】【幼児】 家電は並列つなぎ。電磁石でモーターが回る。電気のこと、おしえてあげるよ! 「理科がきらい!」を克服しよう 学校の授業ではそれなりに、身近な現象と理科を結びつけようと導いていたのかもしれないけれど、実験や観察と、理科とがどうしても結びつかなかった。 ⇒⇒ それは、なぜ、どうして、と、疑問をもつ前に課題を与えられてしまうから 当社の理科シリーズは、どうして理科がきらいになるのか、を考え、その道筋を逆にたどって、導入の糸口をつかむところから始まります。なぜ?どうして?からスタートすれば、興味は自然に広がります。 豆電球は、電気の流れの邪魔をする抵抗。豆電球を直列にふやすと抵抗が大きくなる⇒流れる電流がへる⇒豆電球は暗くなる! 細いところを電気の粒がぶつかりながら通って、発熱する! 難しいと思われがちな電気の分野も、順序だてた簡潔な展開でわかりやすく、必ず楽しく、理解できます。 数式や理屈の前に、電流や抵抗の概念を、粒や水の流れに例えた簡単な映像でわかりやすく説明し、原理のイメージをつかみやすくします。 オームの法則、40Wと100Wの電球を並列・直列につなぐと明るさは逆転、など少し難しい話も、丁寧な解説で納得!延長コードの配線、電熱線が熱くなる理由、家電のワット数の意味…身近なことと関連づけ、電気への興味を広げます。 わかること、が、理科好きへの第一歩! 電気は苦手…な大人の方にも、きっと役立ちます! ◆直列・並列 ・回路に流れる電流 ・ショート ・電圧とは ・電流計のよみ方 ◆抵抗と電流 ・抵抗とは ・抵抗の直列並列と電流 ・合成抵抗 ・オームの法則 ◆電熱線と発熱 ・電流の大きさと発熱 ・抵抗の直列並列と発熱 ・40Wと100Wの電球の直列並列 ◆電流と磁力線 ・磁石・磁力線 ・右ねじの法則 ◆電磁石 ・コイルと磁力線 ・右手の法則 ◆電磁石を利用したもの ・ベル ・コイルモーター
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Process: 0.243s ( Load:0.011s Init:0.021s Exec:0.182s Template:0.029s ) | DB :23 queries 0 writes | Cache :5 gets 2 writes | UseMem:27,607 kb
页面Trace信息
当前页面 : /index.php/Rakuten/ShopView/id/chaoone:10001214.html
请求方法 : GET
通信协议 : HTTP/1.1
请求时间 : 2025-08-21 02:29:40
用户代理 : Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
会话ID : t7m5huqa7o97r7h8c91l6n1qd2
运行数据 : Process: 0.243s ( Load:0.011s Init:0.021s Exec:0.182s Template:0.029s ) | DB :23 queries 0 writes | Cache :5 gets 2 writes | UseMem:27,607 kb
输出编码 :
加载类库 : 37
模板编译 : 重新编译
SQL记录 : 23条SQL
[ 25-08-21 02:29:41 ] RunTime:0.000539s SQL = SHOW COLUMNS FROM bio_yahooid
[ 25-08-21 02:29:41 ] RunTime:0.001017s SQL = SHOW COLUMNS FROM bio_agent
[ 25-08-21 02:29:41 ] RunTime:0.000328s SQL = SELECT * FROM bio_agent WHERE ( `isViews` = 1 ) AND ( `domain` LIKE '%test.ripai.com' )
[ 25-08-21 02:29:41 ] RunTime:0.000209s SQL = SELECT * FROM bio_agent WHERE ( `domain` = 'www.jp-daigou.com' )
[ 25-08-21 02:29:41 ] RunTime:0.000268s SQL = select * from bio_siteparams where FIND_IN_SET('081',AgentID)
[ 25-08-21 02:29:41 ] RunTime:0.000395s SQL = SHOW COLUMNS FROM bio_point
[ 25-08-21 02:29:41 ] RunTime:0.001142s SQL = SHOW COLUMNS FROM bio_user
[ 25-08-21 02:29:41 ] RunTime:0.000745s SQL = SELECT * FROM bio_goods WHERE `isView` = 1 and gType<=3 ORDER BY created DESC LIMIT 15
[ 25-08-21 02:29:41 ] RunTime:0.000359s SQL = SHOW COLUMNS FROM bio_syscolumn
[ 25-08-21 02:29:41 ] RunTime:0.000273s SQL = SELECT * FROM bio_syscolumn WHERE ( `column_leftid` = 17 ) AND ( `column_open` = 1 ) ORDER BY column_order asc
[ 25-08-21 02:29:41 ] RunTime:0.000378s SQL = SELECT * FROM bio_syscolumn WHERE ( `column_leftid` = '19' ) AND ( `column_open` = 1 ) ORDER BY column_order asc
[ 25-08-21 02:29:41 ] RunTime:0.000282s SQL = SELECT * FROM bio_syscolumn WHERE ( `column_leftid` = '89' ) AND ( `column_open` = 1 ) ORDER BY column_order asc
[ 25-08-21 02:29:41 ] RunTime:0.000294s SQL = SELECT * FROM bio_syscolumn WHERE ( `column_leftid` = '20' ) AND ( `column_open` = 1 ) ORDER BY column_order asc
[ 25-08-21 02:29:41 ] RunTime:0.000300s SQL = SELECT * FROM bio_syscolumn WHERE ( `column_leftid` = '18' ) AND ( `column_open` = 1 ) ORDER BY column_order asc
[ 25-08-21 02:29:41 ] RunTime:0.000582s SQL = SHOW COLUMNS FROM bio_rakutencategory
[ 25-08-21 02:29:41 ] RunTime:0.000308s SQL = SELECT * FROM bio_rakutencategory WHERE id=203054
[ 25-08-21 02:29:41 ] RunTime:0.000223s SQL = SELECT p.id,p.name_cn FROM bio_rakutencategory p LEFT JOIN bio_rakutencategory c on c.parentid=p.id WHERE c.id=203054
[ 25-08-21 02:29:41 ] RunTime:0.000177s SQL = SELECT p.id,p.name_cn FROM bio_rakutencategory p LEFT JOIN bio_rakutencategory c on c.parentid=p.id WHERE c.id=401123
[ 25-08-21 02:29:41 ] RunTime:0.000186s SQL = SELECT p.id,p.name_cn FROM bio_rakutencategory p LEFT JOIN bio_rakutencategory c on c.parentid=p.id WHERE c.id=111078
[ 25-08-21 02:29:41 ] RunTime:0.000175s SQL = SELECT p.id,p.name_cn FROM bio_rakutencategory p LEFT JOIN bio_rakutencategory c on c.parentid=p.id WHERE c.id=100533
[ 25-08-21 02:29:41 ] RunTime:0.000166s SQL = SELECT * FROM bio_rakutencategory WHERE parentid=203054
[ 25-08-21 02:29:41 ] RunTime:0.000400s SQL = SHOW COLUMNS FROM bio_rate
[ 25-08-21 02:29:41 ] RunTime:0.000191s SQL = SELECT * FROM bio_rate WHERE ( `type` = 'RMB->JPY' ) ORDER BY date desc LIMIT 1
错误记录 : 107条错误
[ 25-08-21 02:29:41 ] 注意:[8] A session had already been started - ignoring session_start() App.class.php 第 115 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated apiExecuter.php 第 253 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated apiExecuter.php 第 284 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated getApiData.php 第 125 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated getApiData.php 第 134 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated getApiData.php 第 499 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated Request.php 第 412 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated Request.php 第 736 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated Request.php 第 749 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated Request.php 第 794 行.
[ 25-08-21 02:29:41 ] 注意:[2048] Redefining already defined constructor for class Net_URL URL.php 第 122 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated Unserializer.php 第 691 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated Unserializer.php 第 693 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated Unserializer.php 第 852 行.
[ 25-08-21 02:29:41 ] 注意:[2048] Redefining already defined constructor for class XML_Parser Parser.php 第 206 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated Parser.php 第 576 行.
[ 25-08-21 02:29:41 ] 注意:[2048] Declaration of XML_Parser::raiseError() should be compatible with that of PEAR::raiseError() Parser.php 第 634 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: openid BaseAction.class.php 第 72 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: Debug BaseAction.class.php 第 174 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: uid BaseAction.class.php 第 209 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated Client.php 第 179 行.
[ 25-08-21 02:29:41 ] 注意:[8192] Assigning the return value of new by reference is deprecated Client.php 第 228 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: type_ BaseAction.class.php 第 649 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: type_ BaseAction.class.php 第 649 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined offset: 11 BaseAction.class.php 第 349 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: type_ BaseAction.class.php 第 649 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: agentId common_inc.php 第 3135 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: isDebugMe forbidcates.php 第 108 行.
[ 25-08-21 02:29:41 ] 注意:[2] shuffle() expects parameter 1 to be array, boolean given BaseAction.class.php 第 418 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined property: RakutenApiExecuter::$ApiDataWorker RakutenApiExecuter.php 第 346 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: appid getApiData.php 第 417 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: isDebugMe getApiData.php 第 436 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: isDebugMe getApiData.php 第 447 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: isDebugYourMa getApiData.php 第 450 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: isDebugMe getApiData.php 第 468 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: isDebugMe getApiData.php 第 481 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: options Unserializer.php 第 448 行.
[ 25-08-21 02:29:41 ] 注意:[2048] Non-static method PEAR::isError() should not be called statically, assuming $this from incompatible context getApiData.php 第 503 行.
[ 25-08-21 02:29:41 ] 注意:[2048] Non-static method PEAR::isError() should not be called statically, assuming $this from incompatible context getApiData.php 第 509 行.
[ 25-08-21 02:29:41 ] 注意:[2048] Non-static method PEAR::isError() should not be called statically, assuming $this from incompatible context RakutenAction.class.php 第 595 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: isDebugMe RakutenAction.class.php 第 607 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: categoryPath RakutenCategoryGetter.class.php 第 55 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: _imgserver YahooAction.class.php 第 1014 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: _imgserver YahooAction.class.php 第 1014 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: _imgserver YahooAction.class.php 第 1014 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: _imgserver YahooAction.class.php 第 1014 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: _imgserver YahooAction.class.php 第 1014 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: _imgserver YahooAction.class.php 第 1014 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: descpre RakutenAction.class.php 第 645 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: type_ BaseAction.class.php 第 649 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: agentId common_inc.php 第 3135 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: isDebugMe forbidcates.php 第 108 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: type_ BaseAction.class.php 第 649 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: showmiddleOfIndex bf17f8f5a76a9d7e9186c4c573d8f8fc.php 第 2 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: parseStr TagLibCx.class.php 第 272 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: parseStr TagLibCx.class.php 第 272 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: parseStr TagLibCx.class.php 第 272 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: parseStr TagLibCx.class.php 第 272 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined offset: 0 ThinkTemplate.class.php 第 578 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined offset: 0 ThinkTemplate.class.php 第 578 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: meta_keyword 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 7 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: Act 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 42 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: U 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 59 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: Act 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 97 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: Act 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 121 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: keyword 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 134 行.
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[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: category 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 278 行.
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[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: keyword 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 286 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: shopcode 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 296 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: minPrice 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 300 行.
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[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: keyword 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 462 行.
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[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: sellerID 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 476 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: store 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 486 行.
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[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: item_status 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 503 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: item_status 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 506 行.
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[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: wrappingicon 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 520 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: buynow 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 523 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: thumbnail 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 525 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: urlpre 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 536 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: chkjp 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 536 行.
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[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: aucminprice 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 537 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined index: aucmaxprice 7e3578d85670e1bc8aad2b48d2c6a90d.php 第 538 行.
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[ 25-08-21 02:29:41 ] 注意:[8] Undefined offset: 0 ThinkTemplate.class.php 第 578 行.
[ 25-08-21 02:29:41 ] 注意:[8] Undefined variable: url 97ae39e43927d85ac9989230a15609a2.php 第 4 行.