Physics AP Formulas Flashcards

Study Notes

Speed and Velocity Formulas

Average speed is calculated as ( V = \frac{d}{t} ) where ( V ) is speed, ( d ) is distance, and ( t ) is time.
Average velocity is given by ( V = \frac{\Delta X}{\Delta t} ), with ( \Delta X ) representing displacement and ( \Delta t ) representing the time interval.
Average velocity can also be determined from initial (( V_o )) and final velocity (( V )) using ( V = \frac{(V_o + V)}{2} ).

Displacement and Time

Displacement in uniformly accelerated motion can be calculated using the formula ( \Delta X = \left( \frac{V + V_o}{2} \right)t ), taking into account final velocity, initial velocity, and time.
For constant acceleration, the final velocity is expressed as ( V = V_o + at ), where ( a ) is acceleration.

Position and Acceleration

The final position in uniformly accelerated motion is defined by ( X = X_o + V_o t + \frac{1}{2} a t^2 ), relating final and initial position, initial velocity, acceleration, and time.
For calculating final velocity in terms of position and acceleration, use ( V^2 = V_o^2 + 2a(X - X_o) ).

Free Fall Motion

In free fall, the final Y velocity is given by ( V_y = V_{oy} - gt ) where ( g ) is the acceleration due to gravity.
The Y position during free fall is derived from ( y = Y_o + V_{oy} t - \frac{1}{2} g t^2 ), incorporating initial position and initial velocity.

Vertical Motion Equations

Final velocity in a vertical motion context is defined as ( V_y^2 = V_{oy}^2 - 2g(y - Y_o) ), connecting vertical positions and velocities.
Upward or downward projectile motion can be described by ( V_y = V_{oy} - gt ) where initial velocity and time are considered.

Projectile Motion

Horizontally launched projectile motion is described by ( X = V_{ox}t ), using initial velocity in the x-direction and time.

Summary of Key Equations

( V = \frac{d}{t} ) - Average speed
( V = \frac{\Delta X}{\Delta t} ) - Average velocity
( V = \frac{(V_o + V)}{2} ) - Average velocity from initial and final values
( \Delta X = \left( \frac{V + V_o}{2} \right)t ) - Displacement with acceleration
( V = V_o + at ) - Final velocity with acceleration
( X = X_o + V_o t + \frac{1}{2} a t^2 ) - Final position with constant acceleration
( V^2 = V_o^2 + 2a(X - X_o) ) - Final velocity in relation to displacement
( V_y = V_{oy} - gt ) - Final vertical velocity during free fall
( y = Y_o + V_{oy} t - \frac{1}{2} g t^2 ) - Vertical position in free fall
( V_y^2 = V_{oy}^2 - 2g(y - Y_o) ) - Final vertical velocity relating to positions
( X = V_{ox}t ) - Horizontal projectile motion.

Description

This quiz features essential formulas in Physics AP, focusing on speed, velocity, and displacement. Each flashcard provides key equations and definitions to enhance understanding. Perfect for AP students looking to master their physics concepts before exams.