This paper deals with the factors that influence the weight of an object near the Earth’s surface.
\nThey are: (1) the Earth’s gravitational force, (2) the centrifugal force due to the Earth’s diurnal
\nrotation, and (3) tidal forces due to the gravitational field of the Moon and Sun, and other solar
\nsystem bodies to a lesser extent. Each of these three contributions is discussed and expressions are
\nderived. The relationship between weight and gravitation is thus established in a direct and
\npedagogical manner readily understandable by undergraduate students. The analysis applies to the
\nNewtonian limit of gravitation. The derivation is based on an experimental (or operational)
\ndefinition of weight, and it is shown that it coincides with the Earth\u2019s gravitational force
\nmodified by diurnal rotation around a polar axis and non-uniformity of external gravitational bodies
\n(tidal term). Two examples illustrate and quantify these modifications, respectively the E\u00f6tv\u00f6s
\neffect and the oceanic …<\/p>\n","protected":false},"excerpt":{"rendered":"
This paper deals with the factors that influence the weight of an object near the Earth’s surface.
\nThey are: (1) the Earth’s gravitational force, (2) the centrifugal force due to the Earth’s diurnal
\nrotation, and (3) tidal forces due to the gravitati…<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-121638","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/121638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=121638"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/121638\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=121638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=121638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=121638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}