Current Events > I just learned how to calculate force, acceleration, and mass

(+) Yeah! (+)

This might not seem like a big deal but to me it represents new beginnings.

I would love to hear from people who have studied physics what I should learn next. And any articles/readings you recommend.

No haters allowed ITT, I am trying to better myself

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Probably angular momentum, torque and stuff like that.

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work, kinetic energy, potential energy

give the formulas, now

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I hate physics... always holding me back or pushing me around

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congrats, multiplication is a great skill to have in life

Joker98 posted...

This might not seem like a big deal but to me it represents new beginnings.

I would love to hear from people who have studied physics what I should learn next. And any articles/readings you recommend.

No haters allowed ITT, I am trying to better myself

Once you start recognizing how calculus figures into those via integrals and derivatives you start having little epiphanies like noticing how gas consumption in a car isnt as closely tied to velocity but more to the changes in velocity due to how much you press the accelerator or brakes.

The scales fall away from your eyes.

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Have you already gone into vectors?

Ruvan22 posted...

Have you already gone into vectors?

Force and Acceleration are vectors.

Ruvan22 posted...

Have you already gone into vectors?

Good point. Velocity includes a direction component whereas speed does not.

In theory that isnt important but in practice youll eventually see problems where the velocity will need to be written as -12 m/sec to get the right answer instead of as the speed of 12 m/sec.

Speed = absolute value of velocity

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But can you calculate the dark side?

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no offense but are you young or did they not teach you this in school?

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SocialistGamer posted...

But can you calculate the dark side?

No but I have taken so much math that I can pretty much bullshit something that looks close if I have a question to work from and a few other semi related problems to use as filler.

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divot1338 posted...

Once you start recognizing how calculus figures into those via integrals and derivatives you start having little epiphanies like noticing how gas consumption in a car isnt as closely tied to velocity but more to the changes in velocity due to how much you press the accelerator or brakes.

The scales fall away from your eyes.

When I realized f=ma was a differential equation my mind was blown

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Kinematics
Friction
Tension
Angular kinematics
Torque

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NightMarishPie posted...

When I realized f=ma was a differential equation my mind was blown

1/2 m * v ^2

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Thanks for the guidance everyone! I've never studied physics and always wanted to, so I'm glad I'm doing it now!

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Can you apply this to deeding?

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R1masher posted...

I hate physics... always holding me back or pushing me around

Once you realize those are the same thing, you're in for an adventure.

Create a frictionless surface to take physics experiments to the next level

Complete_Idi0t posted...

Create a frictionless surface to take physics experiments to the next level

Questionmarktarius posted...

They said frictionless surface, that's just a game of air hoc----ooohhhhhh

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guys guys



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Watch The Organic Chemistry Tutor on YouTube.

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Here is what I studied today. Not a bad day for learning
(I wrote everything down so I don't forget what I learned and I can go back and expand on it later)


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Cpt_Pineapple posted...

but can you see why kids love the taste of cinnamon toast crunch?

Im no Einstein

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Does it annoy anyone else when they say their weight in kilograms

my bed is a frictionless surface

Rhylos posted...

Does it annoy anyone else when they say their weight in kilograms

i prefer when your mom says her weight on the richter

After you go through everything else on your checklist, you'll probably want to look into oscillations.

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I've TAed the stuff you're currently learning, so a small tip: don't forget to do practice problems. Reading an equation is one thing, learning when and how to use it is another

Also, I personally would have done your topics in a different order, but as long as you understand everything by the end it's not a big deal
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If you are trying to learn physics, don't read articles and watch videos. Buy yourself a quality college-level textbook, hone your math skills to the appropriate level, and use that to learn. There are good videos and articles, but those are just supplements to a good textbook's explanations, and most importantly, problem sets.

Hi guys.

Dark_Garioshi posted...

After you go through everything else on your checklist, you'll probably want to look into oscillations.

Noted, thank you!

teep_ posted...

I've TAed the stuff you're currently learning, so a small tip: don't forget to do practice problems. Reading an equation is one thing, learning when and how to use it is another

Also, I personally would have done your topics in a different order, but as long as you understand everything by the end it's not a big deal

I've been doing problems, but so far only for force, mass, acceleration, and a little friction, air resistance, etc etc. I plan to ramp this up quickly to get an understanding of what I'm undertaking if I decide to study physics further.

darkmaian23 posted...

If you are trying to learn physics, don't read articles and watch videos. Buy yourself a quality college-level textbook, hone your math skills to the appropriate level, and use that to learn. There are good videos and articles, but those are just supplements to a good textbook's explanations, and most importantly, problem sets.

That's a really good idea, and I agree. I'm currently on the hunt for a physics textbook and I've been searching out problem sets online. If you have any recommendations for where to find good problem sets, I would be all ears.

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@Joker98
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics 4th Edition
That was the textbook I used in college, and I found it to be excellent. I took physics as a returning adult student with no special background aside from a love for math, so this isn't one of those recommendations where the book sucks and I already knew the material. No, the book does a good job and there are lots of challenging problems inside. One of the negative reviews states there are typos in the answers in the back of the book. While I never encountered that, it is probably true for every textbook, it's just a matter of hitting the right problems. Another review complains of the difficulty. Physics for Scientists and Engineers is a college-level book aimed at people who have taken calculus before or are taking it while enrolled in physics. The material gets harder as you go, but only because the physics itself is harder. The EM stuff towards the back got a bit much for people in my class, and that was usually down to a poor mastery of calculus. There is a pretty big difference between doing well in calculus and understanding the math well enough to use it for real problems.

Anyway, that's my strong recommendation.