AP Physics 1 Exam Questions & Answers

AP Physics 1 Exam Questions & Answers Acceleration (a) - ANSWER: -Rate of change of velocity w/ respect to time -Measured in meters per second squared (m/s^2) average a = Δv/t Acceleration in SHM - ANSWER: -Acceleration is the 2nd derivative of displacement -Maximum acceleration occurs at extreme positions Acceleration vs. Time Graph - ANSWER: -Area represents change in velocity Amplitude (A) - ANSWER: The maximum displacement from equilibrium Angular Acceleration (α) - ANSWER: -Change in angular velocity over time -Measured in radians per second squared (rads/s^2) α = Δw/t Angular Frequency (w) - ANSWER: Frequency measured in radians per second (rads/s) w = 2∏f = 2∏/T Angular Kinematics - ANSWER: Δϴ = 1/2 αt^2 + w(o)t + x(o) w(f)^2 - w(i)^2 = 2αΔϴ Angular Momentum (L) - ANSWER: L = Iw, measured in kg x m^2/s^2 Angular momentum is conserved if no net torque is applied Angular Velocity (w) - ANSWER: -Change in angle over time -Measured in radians per second (rads/s) or revolutions per minute (rpm) w = Δϴ/t Beats - ANSWER: When sound waves with slightly different frequencies meet, the interference is alternately constructive and destructive, so the sound gets louder and softer at regular intervals Centripetal Acceleration - ANSWER: -Acceleration towards the center of a circle Ac = v^2 / r Centripetal Force - ANSWER: The net force (not a real force) that points toward the center of a circle Circular vs. Elliptical Orbits - ANSWER: Circular Orbits: radius is constant, Ug is constant, and K is constant