Tài liệu 25 Đề Thi Olympic Vật Lí 10 Trường Chuyên. Phân loại: Phổ thông > Lý > Lớp 10. Chủ đề: Vật lí, Vật Lí 10. Có bản xem trước trang đầu dạng HTML và PDF để tham khảo nội dung.

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.document-html-preview--word div.Section0{page:Section0;}</style><div class="document-html-preview__page document-html-preview__page--word" data-page="1">&#272;&#7872; OLYMPIC QU&#7888;C GIA<o:p></o:p>&nbsp;2016-2017<o:p></o:p>C&#226;u 1: (5 &#273;i&#7875;m)<o:p></o:p>M&#7897;t chi&#7871;c c&#244;ng-ten-n&#417; &#273;ang n&#7857;m y&#234;n tr&#234;n m&#7863;t &#273;&#7845;t ngang, ph&#7859;ng th&#236; &#273;&#432;&#7907;c m&#7897;t c&#7847;n c&#7849;u k&#233;o l&#234;n theo ph&#432;&#417;ng th&#7859;ng &#273;&#7913;ng v&#7899;i gia t&#7889;c <img width="84" height="24" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/ff1816f371a1bc97d207.png" >. Sau khi r&#7901;i m&#7863;t &#273;&#7845;t 4s, t&#7915; m&#7863;t tr&#234;n c&#7911;a c&#244;ng-ten-n&#417;, m&#7897;t h&#242;n &#273;&#225; &#273;&#432;&#7907;c b&#7855;n ra v&#7899;i v&#7853;n t&#7889;c <img width="87" height="24" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/fa2c55533ee362b64d01.png" >&nbsp;(&#273;&#7889;i v&#7899;i c&#244;ng-ten-n&#417;) theo ph&#432;&#417;ng h&#7907;p v&#7899;i ph&#432;&#417;ng ngang m&#7897;t g&#243;c <img width="52" height="22" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/dc43a1796db19db4788a.png" >. Bi&#7871;t c&#244;ng-ten-n&#417; cao h = 3m, l&#7845;y <img width="79" height="24" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/4cc3a8741585b85f14b4.png" >. Coi h&#242;n &#273;&#225; nh&#432; m&#7897;t ch&#7845;t &#273;i&#7875;m. H&#227;y t&#237;nh:<o:p></o:p>a. T&#237;nh th&#7901;i gian t&#7915; l&#250;c b&#7855;n h&#242;n &#273;&#225; &#273;&#7871;n l&#250;c n&#243; r&#417;i xu&#7889;ng m&#7863;t &#273;&#7845;t.<o:p></o:p>b. T&#237;nh t&#7847;m bay xa c&#7911;a h&#242;n &#273;&#225;. <o:p></o:p>C&#226;u 2: (5 &#273;i&#7875;m)<o:p></o:p>Hai v&#7853;t c&#243; kh&#7889;i l&#432;&#7907;ng <img width="71" height="24" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/5800b30b4433aa0b62dc.png" >v&#224; <img width="75" height="24" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/b82b8982f6bcef2ab99f.png" >&nbsp;&#273;&#432;&#7907;c n&#7889;i v&#7899;i nhau b&#7857;ng d&#226;y m&#7843;nh, nh&#7865;, kh&#244;ng d&#227;n, n&#7857;m y&#234;n tr&#234;n m&#7863;t b&#224;n ngang v&#224; ph&#7859;ng. D&#226;y &#273;&#432;&#7907;c v&#7855;t qua r&#242;ng r&#7885;c nh&#7865;, c&#242;n tr&#7909;c r&#242;ng r&#7885;c &#273;&#432;&#7907;c bu&#7897;c v&#224;o &#273;u&#244;i c&#7911;a m&#7897;t xe &#273;&#7891; ch&#417;i kh&#7889;i l&#432;&#7907;ng M = 500g nh&#432; h&#236;nh (nh&#236;n t&#7915; tr&#234;n xu&#7889;ng).<o:p></o:p><img width="330" height="101" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/8c5fb29bd918967fe9fa.png" ><o:p>&nbsp;</o:p>B&#7887; qua ma s&#225;t l&#259;n gi&#7919;a c&#225;c b&#225;nh xe v&#224; m&#7863;t b&#224;n, ma s&#225;t t&#7841;i tr&#7909;c quay c&#7911;a r&#242;ng r&#7885;c. H&#7879; s&#7889; ma s&#225;t gi&#7919;a hai v&#7853;t v&#224; b&#224;n l&#224; <img width="52" height="22" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/a57622aea1dfaf5ab6d9.png" >. D&#226;y kh&#244;ng tr&#432;&#7907;t tr&#234;n r&#242;ng r&#7885;c khi c&#417; h&#7879; chuy&#7875;n &#273;&#7897;ng. L&#7845;y <img width="79" height="24" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/4cc3a8741585b85f14b4.png" >. T&#225;c d&#7909;ng v&#224;o xe m&#7897;t l&#7921;c <img width="14" height="22" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/e5f73340344f64d2286e.png" >&nbsp;theo ph&#432;&#417;ng ngang c&#243; &#273;&#7897; l&#7899;n t&#259;ng d&#7847;n. T&#236;m &#273;&#7897; l&#7899;n t&#7889;i thi&#7875;u c&#7911;a F &#273;&#7875;:<o:p></o:p>a. Xe c&#243; th&#7875; chuy&#7875;n &#273;&#7897;ng.<o:p></o:p>b. C&#7843; hai v&#7853;t c&#249;ng chuy&#7875;n &#273;&#7897;ng.<o:p></o:p>C&#226;u 3: (5 &#273;i&#7875;m)<o:p></o:p>Hai t&#7845;m ph&#7859;ng nh&#7865; c&#7913;ng OA v&#224; OB &#273;&#432;&#7907;c n&#7889;i v&#7899;i nhau b&#7857;ng b&#7843;n l&#7873; t&#7841;i O. Ng&#432;&#7901;i ta &#273;&#7863;t m&#7897;t kh&#7889;i tr&#7909; tr&#242;n tr&#7885;ng l&#432;&#7907;ng P, &#273;&#7891;ng ch&#7845;t, ti&#7871;t di&#7879;n &#273;&#7873;u b&#225;n k&#237;nh R v&#224;o gi&#7919;a hai t&#7845;m sao cho tr&#7909;c <img width="20" height="24" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/52026638dc684c3f930b.png" >&nbsp;c&#7911;a n&#243; song song v&#7899;i tr&#7909;c O c&#7911;a b&#7843;n l&#7873;. Hai tr&#7909;c n&#224;y n&#7857;m ngang v&#224; c&#249;ng n&#7857;m trong m&#7863;t ph&#7859;ng th&#7859;ng &#273;&#7913;ng vu&#244;ng g&#243;c v&#7899;i m&#7863;t ph&#7859;ng h&#236;nh v&#7869;.<o:p></o:p><img width="178" height="132" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/bf960e7c89d7c976828e.png" ><o:p>&nbsp;</o:p>&#272;&#7875; kh&#7889;i tr&#7909; n&#7857;m y&#234;n c&#226;n b&#7857;ng gi&#7919;a hai t&#7845;m sao cho g&#243;c <img width="127" height="27" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/2c885f799e9f446faa14.png" >&nbsp;ng&#432;&#7901;i &#273;&#7891;ng th&#7901;i t&#225;c d&#7909;ng v&#224;o hai t&#7845;m t&#7841;i A v&#224; B hai l&#7921;c tr&#7921;c &#273;&#7889;i n&#7857;m ngang, c&#249;ng &#273;&#7897; l&#7899;n F h&#432;&#7899;ng v&#224;o nhau. Bi&#7871;t r&#7857;ng h&#7879; s&#7889; ma s&#225;t ngh&#7881; gi&#7919;a kh&#7889;i tr&#7909; v&#224; m&#7895;i t&#7845;m ph&#7859;ng &#273;&#7873;u l&#224; <img width="14" height="18" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/6b4f10bcce649ac47ba8.png" >. B&#7887; qua ma s&#225;t &#7903; b&#7843;n l&#7873; O. H&#227;y x&#225;c &#273;&#7883;nh &#273;&#7897; l&#7899;n c&#7911;a l&#7921;c F.<o:p></o:p><o:p>&nbsp;</o:p><o:p>&nbsp;</o:p><img width="237" height="176" src="https://daythem.com/public/s3/user.document/user-system-generate/ly/lop-10/6cae89f4db0c45/html-preview-assets/844c0ffac428a6717b43.png" align="left" hspace="12" >C&#226;u 4: (5 &#273;i&#7875;m)<o:p></o:p></div></section>

25 Đề Thi Olympic Vật Lí 10 Trường Chuyên

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