Sách Giáo Khoa Vật Lí Lớp 10 - Sách Vật lí 10 nâng cao

BO GIAO DUC VA OAO TAO

LLiONG t)UYEN BINH (long Chu bicn kicniChu hicn i NGUYEN XUAN CHI - CO ClANG TR.4N CHI MINH - vu OUANG - BUI GIA THINH

Z7^

(Tdi bdn ldn thu tu)

NHA XUAT BAN GIAO DUC VIST NAM

CAU TRUC CAC T^i^iCi SACH GIAO KHOA

1. Ph^n noi dung bai hoc gom cac trang in thanh hai cot : mot cot la

noi clung chinh cua bai hoc, cot con lai chCr nho, trmh bay cac hmh

ve, tranh, anh, bieu bang, do thi, cac cau hoi (ki h i e u S * ) de giao

vien va hoc sinh cimg tham gia xay dung bai hoc... Tuy nhien, vai

cac hmh, do the... co kich thuoc lan thi in tran trang.

2. Sau phan noi dung bai hoc la (Dhan tom tat bai hoc, dugc in dam.

Cuoi moi bai hoc la phan cau hoi (ki hieu ''•) va bai tap (ki hieu"^ l

de hoc sinh lam a nha. Phan dap an va dap so bai tap dugc in a cuoi

cuon sach.

.3. Sau mpt so bai hoc co nhung bai dgc them ghi la "Em co biet ?"

Chiu tracti nhiem xuat ban : Chu tich HDQT kiem Tong Giam doc NGO IRAN Al

Pho Tong Giam doc kiem Tong bien tap NGUViN QUY THAO

Bien tap lan dau

Bien tap tai ban

Bien tap kT thuat

Trinh bay bia va minh hoa

SUa ban in

Che ban

NGUYEN VAN THUAN - VU THj THANH MAI PHUNG THANH HUYEN TA THANH TUNG TA THANH TUNG PHONG SL/A BAN IN (NXB GIAO DUC TAI HA NOI) CONG TY CO PHAN Ml THUAT VA TRUYEN THONG

Trong sach nay co sCr dung moi so anh tu lieu cua Thong tan xa Viet Nam

Ban quyen thuoc Nha xuat ban Giao diJC Viet Nam - Bp Giao due va Oao tao

VAT Ll 10

Ma so : CH005T0

In 100.000 ban (ST), kho 17x24 cm.

IntaiCongtyCPIn Nghe An. 216-Tran Phu -TP Vinh - Nghe An. S 6 i n : 0 8 G K . S 6 xuat ban: 01-2010/CXB/552-1485/GD. •

In xong va nop luu chieu thang 01 nam 2010.

1. Vat ll hoc nghien ciiu cac dang chuygn dong, cac qua trinh bien doi... va cau tao ciia cac vat thd. Do la mot trong cac mon khoa hoc tu nhien quan trong nhat ciia chuong trinh Trung hoc pho thong. Cac em hoc sinh da bat dau hoc mon Vat If tir cac ldp Trung hoc co so. Nhung tir ldp 10 Trung hoc phd thdng. mdn Vat If mdi dugc trinh bay mdt each he thdng, sau sdc va day dii hon. Trong chuong trinh Trung hoc phd thdng, mdn Vat If chii yeu diing phuong phap thuc nghiem : h^u het cac khai niem, dinh luat, cdng thuc... deu dugc rut ra ttr cac quan sat, thf nghiem... trong thuc te.

2. Chuong trinh mdn Vat If ldp 10 Trung hgc phd thdng gdm hai phan :

• Phan mdt - Co hgc : nghien cuu cac dang chuydn dgng co, cac djnh luat co ban ciia chuyen dgng co.

• Phan hai - Nhiet hgc : nghien ciru cac trang thai ciia cac vat the cau tao bdi cac phan tii'; nghien cuu su trao ddi nang lugng giua cac vat the trong qua trinh bien ddi.

3. Cac tfnh chat vat If khae nhau ciia mdt vat the dugc bieu didn bang cac dai lugng vat If khae nhau. Trong chuong trinh Trung hgc phd thdng. ta chi gap hai loai dai lugng vat If:

- Dai lugng vd hudng ; - Dai lugng vecto.

a) Dqi luang vo huang : Dai lugng vd hudng chi cd mdt gia tri : hoac khdng am (khd'i lugng. the tfch...), hoac cd dau duong hay am (dien tfch, cdng, hieu dien the...).

N

--,\a CJ»

M

b) Dqi luang vecta: dugc didn ta bang mdt vecto xac dinh bdi die'm gdc, die'm nggn, gia, chidu va do ldn.

Vi du : Vecto luc F = ~MN :

- Didm gd'c M ;

- Didm nggn N ;

- Chieu cua vecto la chidu ttr diem gdc de'n diem nggn ;

- Do ldn vecto bang F = \MN\.

4 Thli nguydn cua mdt dai lugng vat If.

Khi do mdt dai lugng, ngudi ta phai chgn mot dai lugng ciing loai lam chuan dd so sanh ggi la dan vi. Ngudi ta thay rang, chi can xac dinh don vi ciia mdt sd dai lugng co ban, cac don vi ciia cac dai lugng khae cd thd tir dd suy ra.

Vi du : Don vi co ban :

\ do dai : met (m) . thdi gian : giay (s) khd'i lugng : kildgam (kg)

Tir dd suy ra don vi :

i van td'c : m/s hay m.s~' j gia td'c : m/s- hay m.s"- luc : kg.m/s- hay kg.m.s"^ (ggi la niuton)

Cdng thiic xac dinh su phu thugc ciia don vi mot dai lugng nao dd vao cac don vi co ban dugc ggi la thli nguyen ciia don vi dd. De kf hidu thii nguydn ciia mdt don vi, ngudi ta diing hai dau ngoac vudng.

\'i dit :

[cdng] = [luc.do dai] = kg.m.s~-.m = …