#physics problems

[er-cryptid]

Comparing Forces [Ex. 1]

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[i-want-to-be-spaghettified]

getting a hard physics problem right >>>>>> any other feeling ever

[academio]

Advice on Improving Your Understanding of Physics

When I started studying physics with my dad, he gave me a few pointers for improving my performance in the subject. I figured, why not share the wisdom?

The first thing, and the most important, in my opinion, is mastering your basics. Don’t memorise the complex stuff, memorise the fundamental equations (eg. Equations of motion, etc.). Once you’ve got the basics down, you just need to learn how to apply them.

Second, draw diagrams. I cannot stress this enough, draw your diagrams. Free Body diagrams, just simple lines, vectors, if there’s a question you can’t understand, translate it pictorially.

Third, practice. Practice questions, all kinds of questions, from previous papers, all of the various sites, other curriculums, etc. If you keep practicing, you’ll find yourself comfortable doing the slightly tougher questions, which in turn will make you more confident.

Fourth, learn from your mistakes. So, you made a mistake. It sucks, you studied so hard, but you still ended up missing a step, or maybe you forgot a formula. Mourn it, then move on. Focus on that. Do 10-12 problems on that topic.

And last, don’t give up. Physics isn’t easy, but it isn’t as hard as everyone says either. You’re going to mess up. Let yourself be frustrated, but don’t dwell on it too long. You won’t get it all in one day. Give yourself time, take breaks if it gets too tiring, mark your weak points and work on them, but don’t neglect the stuff you’re good at it either.

[webeducationsciences]

Book Solved Problems in Classical Electromagnetism Analytical and Numerical Solutions with Comments by J Pierrus pdf Book Solved Problems in Classical Electromagnetism Analytical and Numerical Solutions with Comments by J Pierrus pdf Pages 656 By J Pierrus Publisher: Oxford University Press, USA, Year: 2018 ISBN: 0198821913,9780198821915 Search in Amazon.com Description: Classical electromagnetism – one of the...

[mysteriousquantumphysics]

When you’re desperately trying to understand how to use co- and contravariant notation and then you realize that there is one last hope.

[omg-physics]

Today is just one of those days where everything I calculate is off by a factor of 2π...

[physicsbelike]

Physics Final be like

A uniform rod is held at equilibrium by a diamond thumbtack attached to one end and a string attached to the other.

The string is then burned in a sacrificial ceremony dating back to Athens in 400 BCE.

Using the period of the rod’s swing and the godly insight provided by this ceremony, determine the hypothetical moment of inertia of the diamond before it was carved into a thumbtack.

[lbibliophile]

When dinner-time conversation turns to the absurdity/impracticality of physics exercises, and I try to give an example

Me: Imagine a perfectly spherical cow, acting like a point source

Mum: So a bit like a cow sized Jupiter

Me: It carries an electric charge

Mum: So someone rubbed it with a balloon

Me: It is in a magnetic field

Mum: Ok, green grassy field (hence why spherical) with magnetic metal fences on two sides

Me: It is moving

Mum: Two very large people are throwing it to each other

Me: This produces an electric current

Mum: The spherical Jupiter-cow is actually being pushed through a long narrow pond, making a current

BONUS

Me: Of course, this is electro-magnetism, so the ‘cow’ has no mass

Mum: … Sorry, no can do. Visualisation error.