MCAT PHYSICS EQUATIONS CONCEPTS -129 QUESTIONS AND ANSWERS 2024.

Kinematics Equations Force of Gravity Between Two Objects Units of G = N∗m²/kg² Brainpower Read More 0:13 / 0:15 Kinetic Friction Static Friction Uniform Circular Motion - Velocity Velocity vector is constantly changing and is tangential to the circle of motion Centripetal Acceleration The acceleration vector always points toward the center of the circle and constantly changes direction as the object moves. Centripetal Force Torque θ = angle between F and the lever arm. (Max force at sin90° = 1) By convention, clockwise rotation is negative, counterclockwise rotation is positive. Work-Energy Theorem Kinetic Energy SI Unit for KE (all energy) = Joules = kg∗m²/s² Work θ = angle between F and the displacement vector. Only forces (or components of forces) that are parallel or anti-parallel to the displacement vector will do work. Max work at cos0 or cos180 = 1 or -1. Gravitational Potential Energy Conservation of Energy Power SI Unit for Power = Watt = J/s = Energy consumption, transfer or transformation per unit time Momentum Momentum is measured in kg∗m/s Conservation of Momentum For elastic and inelastic collisions Completely Inelastic Collision Hooke's Law F = restoring force, k = spring constant, x = displacement from natural length. Larger k = stiffer spring, and larger magnitude of restoring force for a given displacement. F is always opposite the direction of displacement. Simple Harmonic Motion - Period/Frequency Simple Harmonic Motion - Angular Frequency - Mass and Spring One revolution = 2π radians. ω only depends on k and m, not x! Two springs with identical k and m values will have the same ω, regardless of x. Simple Harmonic Motion - Elastic Potential Energy of a Spring where x is displacement from equilibrium. Upon release, the spring will accelerate in proportion to the restoring force and PE will be converted to KE. Simple Harmonic Motion - Angular Frequency - Pendulum ω only depends on g and L, not m or θ! Two pendulums with the same length will have the same ω regardless of m or initial θ. Simple Harmonic Motion - Restoring Force - Pendulum F = restoring force, m = mass attached to pendulum, g = acceleration due to gravity, θ = angle between pendulum arm and the vertical. F acts tangential to arc of circle. Max F and a at max θ.