# Inertia- who discovered it?

### Inertia- who discovered it?

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##### Transcript
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Created by Ashley Pierre and Tolulope Ilori
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For the video you are about to see, fair warning: We are science people not artists. If you are able to do both, good for you, but we are not those people. Forgive us for bad art. Thank you.
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Once Upon A Time....
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There were two cats, Fifi and Alex. One day, Fifi found Alex and begun to tell him about what she learned in physics.
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"Hey Alex! Would you like to hear about what I learned in my physics class today?" Fifi asked.
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"Yes, tell me about it." Alex responded.
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Fifi replied. "Okay, it is called... INERTIA!"
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Alex stretches and looks at Fifi confused. "What is Inertia?" Alex asked Fifi
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"The law of inertia was first formulated by Galileo Galilei during the first decade of the 17th century. Which eventually led to Newton’s first law of motion!"Fifi replied.
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Alex thought, "Uh, I think I heard of this Newton..."
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"Since we are on a brick wall,
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let’s find a loose brick! I brought a hammer and I will show you a very cool real-life application of Inertia!" Fifi exclaimed, as she was excited to show her friend what she had learned.
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Alex exclaimed as he dropped the brick off of the wall. Fifi looked on in shock. She then exclaimed, "Cool! Here's Dad's hammer!"
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"Oh! I found a brick!"
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"First of all, I will define Newton's first law which is otherwise known as INERTIA:
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states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving unless it is acted upon by a force. In simple terms, Inertia is the resistance of any physical object to any change in its velocity. An object with a larger mass will resist change in its motion compared to an object with a smaller mass."
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"To demonstrate Inertia, I would like you to hit this hammer on my hand." said Fifi.
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Oh no Fifi! I cannot do that!!! That will hurt!
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“Trust me, it won’t!” Fifi exclaimed.
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“Because this is a large brick, it has a big mass that will restrict change in its motion thereby causing me not to feel any pain or effect of the force applied. However, if you use a small brick, hitting with a hammer will cause a larger displacement leading to a larger force, which causes pain.”
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With one fell swoop, Alex hit the hammer on the brick that was placed on Fifi 's hand.
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Fifi didn't move and didn't budge, but instead laughed it off!
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“Wow, this is pretty cool!”
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“I wouldn’t have thought that using a larger brick will cause you less pain compared to a smaller brick which will cause more pain!”
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“Correct!” Fifi exclaimed.
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“Tell me more about Galileo Galilei!” Alex exclaimed excitedly.
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"Of course!" Fifi exclaimed.
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THE      END
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References/Credit: Giancoli, D. C. (2014). Dynamics: Newton's Law of Motion. In Physics: Principles with applications, 7/e (pp. 75–97). essay, Pearson. Project slide creator: https://dashboard.moovly.com/projects The law of inertia. (n.d.). Retrieved November 7, 2021, from https://www.tau.ac.il/education/muse/museum/galileo/the_law_of_inertia.html.