Knowing Which Equation to Use


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AChoudhry_1L
Posts: 55
Joined: Sat Sep 07, 2019 12:17 am

Knowing Which Equation to Use

Postby AChoudhry_1L » Sat Oct 12, 2019 6:19 pm

When approaching quantum problems, what is your method to determine which equation we should be using?

FDeCastro_1B
Posts: 54
Joined: Thu Jul 25, 2019 12:16 am

Re: Knowing Which Equation to Use

Postby FDeCastro_1B » Sat Oct 12, 2019 8:22 pm

I use Dr. Lavelle's problem solving guidelines:
1. What is the question?
2. What concepts do I know?
3. What model or equations do I know?
4. What is known? What is unknown?
5. Can I express unknown with respect to the known?

AKhanna_3H
Posts: 104
Joined: Wed Sep 18, 2019 12:19 am

Re: Knowing Which Equation to Use

Postby AKhanna_3H » Sat Oct 12, 2019 8:25 pm

I usually start by figuring out what variables I know and then finding an equation that has the unknown variable in it, filling in all the known variables that apply to that equation.

Natalie Wang 1B
Posts: 51
Joined: Sat Sep 14, 2019 12:15 am
Been upvoted: 1 time

Re: Knowing Which Equation to Use

Postby Natalie Wang 1B » Sat Oct 12, 2019 8:33 pm

At the moment, I'm distinguishing them based off of electromagnetic radiation and the quantum mechanics of electrons. For example, De Brogile's equation can only be applied to electrons, NOT light.

gabbymaraziti
Posts: 111
Joined: Wed Sep 18, 2019 12:19 am

Re: Knowing Which Equation to Use

Postby gabbymaraziti » Sat Oct 12, 2019 11:13 pm

I usually begin by circling the quantities and units given in the problem, and what type of unit I need to find. Then, I just find which equation allows me work between what is given and the unknown.


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