{"id":2262,"date":"2024-11-09T05:03:53","date_gmt":"2024-11-09T05:03:53","guid":{"rendered":"https:\/\/gbelentzas.sites.sch.gr\/?p=2262"},"modified":"2025-08-08T15:00:40","modified_gmt":"2025-08-08T15:00:40","slug":"1-3-%ce%b5%ce%bc%ce%b2%ce%b1%ce%b4%cf%8c%ce%bd-%ce%bf%cf%81%ce%b8%ce%bf%ce%b3%cf%89%ce%bd%ce%af%ce%bf%cf%85","status":"publish","type":"post","link":"https:\/\/gbelentzas.sites.sch.gr\/?p=2262","title":{"rendered":"1.3 \u0395\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd \u03bf\u03c1\u03b8\u03bf\u03b3\u03c9\u03bd\u03af\u03bf\u03c5"},"content":{"rendered":"\n\n
\n
\n\t\t\t
\n\t\t\t

\u0395\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03c7\u03bf\u03bb\u03b9\u03ba\u03bf\u03cd \u03b2\u03b9\u03b2\u03bb\u03af\u03bf\u03c5: 1.3. \u0395\u03bc\u03b2\u03b1\u03b4\u03ac \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03c9\u03bd \u03c3\u03c7\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd<\/a><\/em><\/strong><\/h4>\n\t\t\t
<\/span><\/div>\n\t\t<\/div>\n\t\t\t
<\/div>\n\t\t<\/div>\n<\/div>\n\n\n

\u039f\u03c1\u03b8\u03bf\u03b3\u03ce\u03bd\u03b9\u03bf<\/strong> \u03bf\u03bd\u03bf\u03bc\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c4\u03bf \u03c4\u03b5\u03c4\u03c1\u03ac\u03c0\u03bb\u03b5\u03c5\u03c1\u03bf \u03c0\u03bf\u03c5 \u03ad\u03c7\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03b1\u03c0\u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ad\u03c2 \u03af\u03c3\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03cc\u03bb\u03b5\u03c2 \u03c4\u03b9\u03c2 \u03b3\u03c9\u03bd\u03af\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03bf\u03c1\u03b8\u03ad\u03c2.<\/p>\n\n\n\n

\u03a4\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd \u03b5\u03bd\u03cc\u03c2 \u03bf\u03c1\u03b8\u03bf\u03b3\u03c9\u03bd\u03af\u03bf\u03c5 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03c4\u03bf \u03b3\u03b9\u03bd\u03cc\u03bc\u03b5\u03bd\u03bf \u03c4\u03bf\u03c5 \u03bc\u03ae\u03ba\u03bf\u03c5\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03af\u03b1\u03c2 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac\u03c2 \u03c4\u03bf\u03c5 (\u03bc\u03ae\u03ba\u03bf\u03c2) \u03bc\u03b5 \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03c0\u03bb\u03b1\u03bd\u03ae\u03c2 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac\u03c2 \u03c4\u03bf\u03c5 (\u03c0\u03bb\u03ac\u03c4\u03bf\u03c2).<\/p>\n\n\n\n

\u0394\u03b7\u03bb\u03b1\u03b4\u03ae, \u03b1\u03bd \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \"\alpha\" \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c0\u03bb\u03ac\u03c4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \"\beta\", \u03c4\u03cc\u03c4\u03b5 \u03c4\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd E \u03c4\u03bf\u03c5 \u03bf\u03c1\u03b8\u03bf\u03b3\u03c9\u03bd\u03af\u03bf\u03c5 \u03b4\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03c4\u03cd\u03c0\u03bf:<\/p>\n\n\n\n

\"E = \alpha \times \beta\"<\/p>\n\n\n

\n
\n\t\t\t
\n\t\t\t

<\/i>\u00a0 \u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 1<\/strong><\/p>\n\t\t\t

<\/span><\/div>\n\t\t<\/div>\n\t\t\t
\n\n

\u039d\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd \u03bf\u03c1\u03b8\u03bf\u03b3\u03c9\u03bd\u03af\u03bf\u03c5 \u03bc\u03b5 \u03bc\u03ae\u03ba\u03bf\u03c2 8 cm \u03ba\u03b1\u03b9 \u03c0\u03bb\u03ac\u03c4\u03bf\u03c2 5 cm.<\/strong><\/p>\n\n\n

<\/div><\/div><\/div>\n\n\n

\u03a3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03c4\u03cd\u03c0\u03bf \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd \u03bf\u03c1\u03b8\u03bf\u03b3\u03c9\u03bd\u03af\u03bf\u03c5 \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5:<\/p>\n\n\n\n

\"E<\/p>\n\n\n\n

\u0388\u03c4\u03c3\u03b9, \u03c4\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd \u03c4\u03bf\u03c5 \u03bf\u03c1\u03b8\u03bf\u03b3\u03c9\u03bd\u03af\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9\u00a0\"40\\,.<\/p>\n\n<\/div>\n\t\t<\/div>\n<\/div>\n\n

\n
\n\t\t\t
\n\t\t\t

<\/i>\u00a0 \u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 <\/strong><\/strong>2<\/p>\n\t\t\t

<\/span><\/div>\n\t\t<\/div>\n\t\t\t
\n\n

\u039d\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03bc\u03af\u03b1\u03c2 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac\u03c2 \u03bf\u03c1\u03b8\u03bf\u03b3\u03c9\u03bd\u03af\u03bf\u03c5 \u03bc\u03b5 \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd\u00a0\"72\\,\u00a0\u03ba\u03b1\u03b9 \u03c0\u03bb\u03ac\u03c4\u03bf\u03c2 \"9.<\/p>\n\n\n

<\/div><\/div><\/div>\n\n\n

\u03a3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03c4\u03cd\u03c0\u03bf \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd \u03bf\u03c1\u03b8\u03bf\u03b3\u03c9\u03bd\u03af\u03bf\u03c5 \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5:<\/p>\n\n\n\n

\"E<\/p>\n\n\n\n

\u039a\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c0\u03c1\u03bf\u03ba\u03cd\u03c0\u03c4\u03b5\u03b9:<\/p>\n\n\n\n

\"72<\/p>\n\n\n\n

\u0394\u03b9\u03b1\u03b9\u03c1\u03ce\u03bd\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03cd\u03bf \u03bc\u03ad\u03bb\u03b7 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03bf\u03c5 \u03b1\u03b3\u03bd\u03ce\u03c3\u03c4\u03bf\u03c5, \u03b4\u03b7\u03bb\u03b1\u03b4\u03ae \u03c4\u03bf 9:<\/p>\n\n\n\n

\"\\alpha<\/p>\n\n\n\n

\u0388\u03c4\u03c3\u03b9, \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03ac\u03bb\u03bb\u03b7\u03c2 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac\u03c2 \u03c4\u03bf\u03c5 \u03bf\u03c1\u03b8\u03bf\u03b3\u03c9\u03bd\u03af\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9\u00a0\\(8\\, cm\\’).<\/p>\n\n<\/div>\n\t\t<\/div>\n<\/div>\n\n

\n
\n\t\t\t
\n\t\t\t

<\/i> Let’s Practise<\/em><\/strong><\/h4>\n\t\t\t
<\/span><\/div>\n\t\t<\/div>\n\t\t\t
\n\n

\u0386\u03c3\u03ba\u03b7\u03c3\u03b7 1<\/em><\/strong><\/p>\n\n\n\n

\u039d\u03b1 \u03c3\u03c5\u03bc\u03c0\u03bb\u03b7\u03c1\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf\u03bd \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1<\/p>\n\n\n\n

\u039c\u03ae\u03ba\u03bf\u03c2 (\u03c3\u03b5 cm)<\/strong><\/td>\u03a0\u03bb\u03ac\u03c4\u03bf\u03c2 (\u03c3\u03b5 cm)<\/strong><\/td>\u03a0\u03b5\u03c1\u03af\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 (\u03c3\u03b5 cm)<\/strong><\/td>\u0395\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd (\u03c3\u03b5 \"cm^2\")<\/strong><\/td><\/tr>
2<\/td>7<\/td><\/td><\/td><\/tr>
<\/td>4<\/td>18<\/td><\/td><\/tr>
3<\/td><\/td><\/td>15<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u0386\u03c3\u03ba\u03b7\u03c3\u03b7 2<\/em><\/strong><\/p>\n\n\n\n

\u039d\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03b3\u03c1\u03b1\u03bc\u03bc\u03bf\u03c3\u03ba\u03b9\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd \u03c4\u03bf\u03c5 \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c3\u03c7\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2.<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

\u0386\u03c3\u03ba\u03b7\u03c3\u03b7 <\/em>3<\/strong><\/p>\n\n\n\n

\u03a3\u03c4\u03bf \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c3\u03c7\u03ae\u03bc\u03b1 \u03b4\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b7 \u03ba\u03ac\u03c4\u03bf\u03c8\u03b7 \u03b5\u03bd\u03cc\u03c2 \u03b4\u03b9\u03b1\u03bc\u03b5\u03c1\u03af\u03c3\u03bc\u03b1\u03c4\u03bf\u03c2.<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

\u039d\u03b1 \u03b2\u03c1\u03b5\u03af\u03c4\u03b5:\u00a0<\/p>\n\n\n\n

\u03b1) \u03a4\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd \u03ba\u03ac\u03b8\u03b5 \u03b4\u03c9\u03bc\u03b1\u03c4\u03af\u03bf\u03c5.\u00a0<\/p>\n\n\n\n

\u03b2) \u03a4\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd \u03c4\u03bf\u03c5 \u03b3\u03c9\u03bd\u03b9\u03b1\u03ba\u03bf\u03cd \u03b4\u03b9\u03b1\u03b4\u03c1\u03cc\u03bc\u03bf\u03c5.<\/p>\n\n\n\n

\u03b3) \u03a4\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd \u03c4\u03b7\u03c2 \u03b2\u03b5\u03c1\u03ac\u03bd\u03c4\u03b1\u03c2.<\/p>\n\n\n\n

\u0386\u03c3\u03ba\u03b7\u03c3\u03b7 <\/em>4<\/strong><\/p>\n\n\n\n

\u0388\u03bd\u03b1 \u03bf\u03c1\u03b8\u03bf\u03b3\u03ce\u03bd\u03b9\u03bf \u03bc\u03b5 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ad\u03c2 \u03b1 = 2 m \u03ba\u03b1\u03b9 \u03b2 = (2x -1) m \u03ad\u03c7\u03b5\u03b9 \u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc \u03bc\u03b5 \u03ad\u03bd\u03b1 \u03c4\u03b5\u03c4\u03c1\u03ac\u03b3\u03c9\u03bd\u03bf \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac\u03c2 4 m. N\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03b8\u03b5\u03af \u03c4\u03bf x.<\/p>\n\n\n\n

<\/p>\n\n<\/div>\n\t\t<\/div>\n<\/div>\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

\u039f\u03c1\u03b8\u03bf\u03b3\u03ce\u03bd\u03b9\u03bf \u03bf\u03bd\u03bf\u03bc\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c4\u03bf \u03c4\u03b5\u03c4\u03c1\u03ac\u03c0\u03bb\u03b5\u03c5\u03c1\u03bf \u03c0\u03bf\u03c5 \u03ad\u03c7\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03b1\u03c0\u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ad\u03c2 \u03af\u03c3\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03cc\u03bb\u03b5\u03c2 \u03c4\u03b9\u03c2 \u03b3\u03c9\u03bd\u03af\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03bf\u03c1\u03b8\u03ad\u03c2. \u03a4\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd \u03b5\u03bd\u03cc\u03c2 \u03bf\u03c1\u03b8\u03bf\u03b3\u03c9\u03bd\u03af\u03bf\u03c5 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03c4\u03bf \u03b3\u03b9\u03bd\u03cc\u03bc\u03b5\u03bd\u03bf \u03c4\u03bf\u03c5 \u03bc\u03ae\u03ba\u03bf\u03c5\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03af\u03b1\u03c2 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac\u03c2 \u03c4\u03bf\u03c5 (\u03bc\u03ae\u03ba\u03bf\u03c2) \u03bc\u03b5 \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03c0\u03bb\u03b1\u03bd\u03ae\u03c2 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac\u03c2 \u03c4\u03bf\u03c5 (\u03c0\u03bb\u03ac\u03c4\u03bf\u03c2). \u0394\u03b7\u03bb\u03b1\u03b4\u03ae, \u03b1\u03bd \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \\(\\alpha\\) \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c0\u03bb\u03ac\u03c4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \\(\\beta\\), \u03c4\u03cc\u03c4\u03b5 \u03c4\u03bf \u03b5\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd E \u03c4\u03bf\u03c5…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-2262","post","type-post","status-publish","format-standard","hentry","category-1---"],"featured_image_src":null,"author_info":{"display_name":"admin","author_link":"https:\/\/gbelentzas.sites.sch.gr\/?author=1"},"yoast_head":"\n1.3 \u0395\u03bc\u03b2\u03b1\u03b4\u03cc\u03bd \u03bf\u03c1\u03b8\u03bf\u03b3\u03c9\u03bd\u03af\u03bf\u03c5 - 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