Khan Academy: Kinematic Formulas/projectile Motion: Projectile Height Given Time

Practice naming chemical compounds or stating the formula when given the name. Discover how well you have mastered these skills either by time or percentage correct.

Looks at how to determine how fast something will be traveling upon impact when it is released from a given height. [11:43]

Using what we know about takeoff velocity and runway length to determine acceleration. [14:16]

Match graphs with the correct scenario for the projectile motion by understanding velocity, acceleration, and displacement.

Reconstructing the total displacement vector for a projectile. [13:46]

Explains how to calculate the total final velocity for a projectile landing at a different altitude. (There is a mistake near the end where Sal wrote 29.03 m/s when it should be 26.03 m/s, and the final total magnitude should be 26.55...

A video explaining how acceleration is change in velocity over time. Video also includes examples of how to solve for the vector quantity of acceleration. [9:05]

Learn how to calculate the empirical formula of a compound by knowing the mass composition. The video gives two step-by-step examples of how to figure out the empirical formula. [12:58]

Ever wonder exactly how the left ventricle's pressure changes over time? Find out in this color-coded video! Rishi is a pediatric infectious disease physician and works at Khan Academy. [10:51]

Calculating average velocity when acceleration is constant