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AP Physics 2 formula prompts Flashcards

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123753909311st kinematics equation$v_f=v_0+at$0
123753909322nd kinematics equation$x=x_0+v_0t+\frac{1}{2}at^2$1
123753917703rd kinematics equation$v_f^2=v_0^2+2a\left(x-x_0\right)$2
12375391771Net force$F_{net}=ma$3
12375391772Force of friction$F_f=\mu F_n$4
12375393812Centripetal acceleration$a_c=\frac{v^2}{r}$5
12375393813Torque$\tau=r_\perp F=rF\sin \theta$6
12375393814Momentum$p=mv$7
12375394666Kinetic energy$K=\frac{1}{2}mv^2$8
12375394667Work$W=\Delta E = F_\parallel d=Fd \cos \theta$9
12375394668Power$P=\frac{\Delta E}{\Delta t}$10
12375411635Force of a spring$F_s=-kx$11
12375411636Potential energy of a spring$U_s=\frac{1}{2}kx^2$12
12375412479Period of a mass on a spring$T_s=2 \pi \sqrt{\frac{m}{k}}$13
12375412480Period of a pendulum$T_p=2 \pi \sqrt{\frac{l}{g}}$14
12375413281Period in terms of frequency$T=\frac{1}{f}$15
12390694112Gravitational force between two massive objects$F_G=G\frac{M_1M_2}{r^2}$16
12390713641Gravitational potential energy between two massive objects$U_G=-G\frac{M_1M_2}{r}$17
12375414634Electric force between two point charges$F_E=\frac{kq_1q_2}{r^2}$18
12375414635Electric field in terms of electric force$E=\frac{F_E}{q}$19
12375521875Electric field at some point due to a point charge$E=\frac{kq}{r^2}$20
12375416061Potential energy in terms of potential$\Delta U_E=q \Delta V$21
12375417381Potential energy between two point charges$\Delta U_E = \frac{kq_1q_2}{r}$22
12375418925Uniform electric field between two parallel plates$E=\frac{\Delta V}{\Delta r}$23
12375421081The potential at some point due to a point charge$V=\frac{kq}{r}$24
12375421082Definition of capacitance$\Delta V = \frac{Q}{C}$25
12375423434Capacitance of a parallel plate capacitor$C=\kappa \epsilon_0 \frac{A}{d}$26
12375423435Energy stored on a capacitor$U_C=\frac{1}{2}Q\Delta V=\frac{1}{2}C\left(\Delta V\right)^2$27
12375540583Electric field inside a capacitor$E=\frac{Q}{\epsilon_0 A}$28
12375424012Definition of current$I=\frac{\Delta Q}{\Delta t}$29
12375424013Resistance of a wire$R=\frac{\rho l}{A}$30
12375424014Ohm's law$V=IR$31
12375424883Power in an electrical circuit$P=IV$32
12375424884How to add parallel capacitors$C_p=\sum_i{C_i}$33
12375426087How to add series capacitors$\frac{1}{C_s}=\sum_i\frac{1}{C_i}$34
12375426088How to add series resistors$R_s=\sum_i{R_i}$35
12375426833How to add parallel resistors$\frac{1}{R_p}=\sum_i\frac{1}{R_i}$36
12375426834Magnetic force on a charge$\overrightarrow{F_M}=q\overrightarrow{v}\times \overrightarrow{B}$37
12375565284Magnetic force on a charge when it is moving in a direction not perpendicular to the magnetic field$\left|\overrightarrow{F_M}\right|=\left|q\overrightarrow{v}\right|\left|\sin{\theta}\right|\left|\overrightarrow{B}\right|$38
12375428892Magnetic force on a wire$\overrightarrow{F_M}=I\overrightarrow{l}\times\overrightarrow{B}$39
12375567620Magnetic force on a wire when it is not perpendicular to the magnetic field$\left|\overrightarrow{F_M}\right|=\left|I\overrightarrow{l}\right|\left|\sin{\theta}\right|\left|\overrightarrow{B}\right|$40
12375430180Magnetic field due to a long straight wire$B=\frac{\mu_0}{2 \pi}\frac{I}{r}$41
12375430181Magnetic flux$\Phi_B=\overrightarrow{B}\cdot\overrightarrow{A}$42
12375571969Magnetic flux when the loop is at an angle to the magnetic field$\Phi_B=\left|\overrightarrow{B}\right|\cos\left(\theta\right)\left|\overrightarrow{A}\right|$43
12375430182Induced EMF$\mathcal{E}=-\frac{\Delta \Phi_B}{\Delta t}$44
12375432055Induced EMF in the special case of a rectangular wire with constant speed$\mathcal{E}=Blv$45
12375582442Density$\rho = \frac{m}{V}$46
12375432056Pressure in a static fluid column$P=P_0+\rho g h$47
12375433222Buoyant force - Archimedes' principle$F_b=\rho V g$48
12375433223Continuity equation$A_1v_1=A_2v_2$49
12375434778Bernoulli's equation$P_1+\rho g y_1 +\frac{1}{2}\rho v_{1}^2=P_2+\rho g y_2 +\frac{1}{2}\rho v_{2}^2$50
12375434779Thermal expansion$\Delta L = \alpha L_0 \Delta T$51
12375434780Definition of pressure$P=\frac{F}{A}$52
12375435525Ideal gas law$PV=nRT=Nk_BT$53
12375436066Average kinetic energy per molecule in an ideal gas$K=\frac{3}{2}k_B T$54
12375436071rms speed of the molecules in an ideal gas$v_{rms}=\sqrt{\frac{3k_B T}{m}}$55
12375438096Work done on a gas in an isobaric process$W=-P\Delta V$56
12375438097First law of thermodynamics$\Delta U = Q+W$57
12375599796Heat transfer through a rod$\frac{Q}{\Delta t}=\frac{kA \Delta T}{L}$58
12375439267Definition of efficiency$e=\frac{W}{Q_H}$59
12375439268Efficiency of an ideal heat engine$e_{ideal}=\frac{T_H-T_C}{T_H}$60
12375442083Velocity of a wave$\lambda=\frac{v}{f}$61
12375442084Definition of the index of refraction$n=\frac{c}{v}$62
12375443042Snell's law$n_1 \sin \theta_1 = n_2 \sin \theta_2$63
12375443719How to find the critical angle for total internal reflection$\sin \theta_c=\frac{n_2}{n_1}$64
12375443720Lensmaker's equation/Mirror equation$\frac{1}{f}=\frac{1}{s_o}+\frac{1}{s_i}$65
12375444710Magnification$M=\frac{h_i}{h_o}=\frac{s_i}{s_o}$66
12375444711Focal length of a spherical mirror$f=\frac{r}{2}$67
12375642105The path difference for light passing through slits$\Delta L = m \lambda$68
12375446976Position of constructive interference points for light passing through slits$d \sin \theta=m \lambda$69
12375448950Position of constructive interference points for light passing through slits if the angle to the screen is small$x=\frac{m \lambda L}{d}$70
12375448954Energy of a photon$E=hf=pc$71
12375451130Kinetic energy of an electron ejected from a metal surface$K_{max}=hf-\phi$72
12375451131De Broglie wavelength$\lambda=\frac{h}{p}$73
12375452785Conversion between mass and energy$E=mc^2$74

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