Khan Academy: Analyzing Graphs of Spring Mass Systems

Practice solving for the frequency, mass, period, and spring constant for a spring-mass system.

Video tutorial explains the difference between atomic weight and atomic mass in chemistry, and how it compares to the physics definitions of weight and mass. [8:53]

Find out how simple it is to calculate your BMI and the common BMI categories from a pediatric infectious disease physician who works at Khan Academy. [7:20]

Learn how blood flows through the heart, and understand the difference between systemic and pulmonary blood flow. Rishi is a pediatric infectious disease physician and works at Khan Academy.

This program simulates a particle connected to an anchor by a spring. Try changing the value of the k variable. Press "Restart" after changing the value. How does the length of the spring change as k increases? How does the speed of the...

This video lesson from Khan Academy covers the center of mass for student who are studying high school physics. Sal gives a conceptual understanding of what center of mass means.

Identify the significant arteries in the brain that bring necessary oxygen to all parts of the brain with the help of this Khan Academy video. [10:20]

What interventions can be made in treating a stroke? Khan Academy answers this question. [7:10]

Is post-stroke inflammation common? Khan Academy fills us in with what it is and why it occurs. [5:55]

A Khan Academy lesson identifies the risk factors for strokes. [11:37]