Inertia Investigation

Physics homework for 11/17/14:

Investigating Instances of Incredible Inertia

       Today in physics we focused on inertia and we learned about Newton's First Law of Motion. To learn about these things, we rotated around from stations and did investigations. Though I would love to summarize everything we did today, I will just explain what inertia is and what Newton's first law is.

So what is inertia?--

Person I don't know: IS THIS INERTIA!?!? :DDD

Yes :D, well, it is one part of it, but yes ;w;.

Inertia is the tendency of an object to preserve its motion unless acted upon by an unbalanced force. It is also the tendency of an object at rest, any object at rest, to stay at rest OR it is when an object in motion stays in motion with the same speed, in the same direction (when the forces are balanced) unless acted upon by an unbalanced force. And that definition also is what Newton's first law (AKA "the law of inertia") is. Inertia can be found in any body as long as the body is acting relative to the definition of inertia and can only occur when the forces are balanced I believe. 

And just for fun, I wanna try my hand at an explanation of Newton's first law for a first grader, "Newton's first law" is when an object that is not moving does not move unless something else makes it move like a person. Or it is when something moving keeps on moving in the same direction with the same fastness unless something stops it from moving in the same direction and speed. 

Okay, now onto some examples of inertia!~

One instance of inertia in my own life and through out my days involves swirling milk. The details behind this situation basically involve me being super tired and wanting to make coffee with milk. After I heat up the milk I of course need to pour in the sugar and coffee mix and when I want the solutes to dissolve I use a spoon to stir the solutes into the solvent. Of course the sugar and coffee will be distributed nicely, but also when the spoon is pulled out after mixing everything in the solution still continues to swirl around on its own! I believe that is a form of inertia, especially since the coffee seems to swirl in one direction over all (counter-clockwise or clockwise depending on which way you stir the solution) and since the speed seems to remain the same until the end (at the end the coffee loses its momentum and goes back to staying at rest). The coffee stayed in motion even after I stopped swirling it around and it only stopped due to some other force (I'm guessing maybe inertia is the reason why it goes back to rest too?) I gave the coffee some applied force, the coffee had inertia, and it was affected by some unbalanced force causing it to go back to rest.

Also, I do not know if this counts as well, I feel like these are not good examples; but when I am taking the MBTA or the T and I am on the bus I am usually at rest through out the whole trip, especially if I am sitting down. Even though the bus is moving, I might jolt a bit at first or during some intervals but I am mainly at rest. Now, when the train or bus stops suddenly I kind of jolt forward but go back to my original position at rest after. That represents me having inertia because with inertia an object at rest will stay at rest unless acted upon by an unbalanced force. Technically, the force from the train/bus must have made me jolt forward, but I sprung right back to rest after. I had a tendency to stay at rest because of inertia (nah, it's mostly laziness and sleepiness actually).

My last example involves two different scenarios; one where I move my tiny little Play-Doh with items on it around and another where I move open these drawers in my kitchen to get bowls and what not (to get fat, of course). So, when I move my little table the table is obviously in motion but not all of the contents on it; in fact, only one item is staying still usually. Today I had a few water bottles, money, a banana, and my pencil pouch on it and only the banana stayed at rest when I moved the table. That might be an example of inertia as the banana stayed at rest. Maybe the force from my hand and the table movement was not strong enough to move the banana? Maybe inertia just helps certain bodies stay at rest? Well, all I know is that I am hungry due to this talk about fruttas. And when I am in the kitchen moving the drawers open, the contents in the drawers remain at rest even though the drawers move due to inertia. The objects are not really being affected by any force and are staying at rest.

Oh, and me sleeping is of course an example of inertia :333 (TwT). 

Welp, I must do the homework of the history class now, I will see the people of this Earth in a few hours! Good nighteth :DDD.

HAVE ALL THE FLUFF <3 YES <3 (more luff will help le world hopefully :33 <3 )