大学物理公式全集（Complete College Physics Formulas）.doc

大学物理公式全集（Complete College Physics Formulas） Complete College Physics Formulas Basic concepts (definitions and related formulas) Position vector: it is in the Cartesian coordinate system: angular position: theta Speed: average speed: speed: angular speed: Angular velocity versus velocity: V=r Omega Acceleration: or average acceleration: angular acceleration: In the natural coordinate system (=r, beta), (=r2, omega) 1. force: =m (or =) torque: (size: M=rFcos theta direction: right hand helix rule) 2. momentum: angular momentum: (size: L=rmvcos theta direction: right hand spiral rule) 3. impulse: (= t); power: (gas external work: A= formula PdV) Mg (Zhong Li) MGH -kx (elastic force) kx2/2 F= (gravitation) - =Ep (electrostatic force) 4. kinetic energy: mV2/2 5. potential energy: A = = Ep, the potential energy forms of different interaction forces are different, and the choice of zeros is different, in different form, in the case of zero potential energy potential: Mechanical energy: E=EK+EP 6. heat: the molar heat capacity C is related to the process. The relationship between the constant heat capacity Cv and the isobaric heat capacity Cp is: Cp=, Cv+R 7. pressure: Average translational energy of 8. molecules: internal energy of ideal gas: 9. Maxwell velocity distribution function (meaning: the ratio of the number of molecules within a unit velocity interval around V) 10. average speed: The root mean square speed; most probable speed: 11. entropy: S=Kln is the thermodynamic probability, that is, the number of microscopic states contained in a macroscopic state 12. electric field strength: =/q0 (point charge) 13. electric potential: (point to point charge); electric potential energy: Wa=qUa (A= - W) 14. capacitor: C=Q/U; capacitor storage: W=CU2/2; electric field energy density, Omega e= epsilon 0E2/2 15.: the size of the magnetic induction intensity, B=Fmax/qv (T); the direction of small needle point (S, N). Laws and theorems 1. vector superposition principle: any vecto