springs

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Tag archives for springs

DIY Force probe

I was thinking about some experiments that deal with friction and I wanted to show something with a force probe. The problem is that most people don’t have one of these. So, I decided to try and make one out of simple things. In this case, I am using some straws, a rubber band and…

Pendulum – a third way

Looking back at part I of this idea, I don’t think I did a very good job. Let me summarize the key things I wanted to say: Normally, there are two ways of modeling the motion of an object: Calculating the forces on the object and using the momentum principle or Newton’s second law (which…

Accelerometer Version-2

So, I built a new accelerometer. Why? The jelly-jar one was just not doing it for me. Plus, the cork was starting to make the water all yellowy. It was a good start, but I can do better. What was wrong with the jelly-jar one? First, it didn’t let the cork move very far before…

Here is what is cool about [Fantastic Contraption](http://fantasticcontraption.com/) – it’s like a whole new world, a world ready for exploring. I am Newton, and I can see if this world follows the models that I propose. In this post, I am going to explore the elastic nature of the “water-sticks”. If you have played fantastic…

Fake vs. Real Forces

In this post, I am going to talk about real and not real forces as well as the fake centrifugal force (if you don’t like the word “fake” you could replace that with “fictitious”) First, an example: suppose you are in a car at rest and press the gas pedal all the way down causing…