This video explains what Torque and the center of gravity is. Torque is a perpendicular force applied over a lever arm (distance from axis) causing rotation. In the video the man talks about how a door will rotate around it's hinges which is the same as saying you have applied a torque. It is impossible to rotate the door if you push it parallel, you must apply the force perpendicular in order to apply a torque (cause the door to rotate). As the video states, you want to push the door as far away from the hinges as you can. This will create a larger lever arm which allows the door to rotate. You can increase the torque by increasing the force, increasing the lever arm, or both.
Center of Gravity is the average placement of all your weight. It does not have to be in the exact center of the object. The video explains that you can find the center by hanging the object from something or you can find the center of gravity by rotating it. If you want something stable you must make sure that the center of gravity does not cross over the base of support. If the center of gravity goes over the base of support it will most likely topple over.
This video really helped to further my knowledge of these two concepts, because it provided good examples that were then thoroughly explained.
Torque and center of gravity video
This post really explained the two concepts of torque and center of gravity clearly. Good job with that! Like my own blog post, you explained the concepts and had a video that also explained the concepts. I think this worked well for you because two different explanations can clarify things or help people think about something in a different way which might make more sense to them. One thing that was different from my blog post was that your video had a more complete explanation of torque as well as center of gravity, which my video did not really talk about. I liked how your video showed a bunch of different examples and how some of them were ones we had seen in class, like the rope and wrench example that wouldn't increase the leaver arm and then the balanced ruler example and how the torques are balanced on either side of the center of gravity. The only constructive criticism I have is for you to embed your video next time. Nice post!
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