Forces | Middle school physics | Khan Academy

Title:
Forces | Middle school physics | Khan Academy
Description:

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/science/ms-physics

Want to explore more? Check out the full middle school physics playlist here: https://www.youtube.com/playlist?list=PLSQl0a2vh4HC-daPugvP8kL_zuE3u_3Zr

A force is a push or a pull. Types of contact forces include the normal and friction forces. Types of non-contact forces include the gravitational, electric, and magnetic forces. When two or more forces act on an object in the same direction, their effects add. In opposite directions, their effects subtract. Adding and subtracting all of the individual forces this way gives the net force on the object. If the net force is zero, the forces are balanced. If not zero, the forces are unbalanced.

Sections:
00:00 - What is a force?
00:32 - Types of forces
04:41 - Multiple forces acting on a body
06:32 - Summary

------------------

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc

Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc

more » « less
Video Language:
English
Team:
Khan Academy
Duration:
07:14
Amara Bot edited English subtitles for Forces | Middle school physics | Khan Academy
Somebody (possibly automatically) added a video: Forces | Middle school physics | Khan Academy
http://www.youtube.com/watch?v=emZftp_UBKs
Format: Youtube
Primary
Original
Synced
Added   by None
Format: Youtube
Primary
Original
Synced
This video is part of the Khan Academy team.

Assignments