## Question on Midterm

$E=hv$

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### Question on Midterm

For the midterm, I remember Dr.Lavelle said something on Friday about using all the numbers for Plank's constant (or any constant)... for example, instead of using 6.626, we would use all the numbers, which are 6.62607004... would we have to use all the numbers instead of just the first three.. because i remember in class Dr.Lavelle used all of them?

Bianca Nguyen 1B
Posts: 36
Joined: Fri Apr 06, 2018 11:04 am

### Re: Question on Midterm

Pretty sure we use whatever is given to us on the Constants and Equations sheet on the front. Thus, for Plank’s constant we’d use 6.62608 x 10^-34

Nikki Bych 1I
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am

### Re: Question on Midterm

Since we will be given a sheet with all the equations and constants on it, we'll just use the constant to as many sig figs as given :)

Zack Barta 3I
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Joined: Fri Sep 28, 2018 12:25 am

### Re: Question on Midterm

Thanks!

ariellasarkissian_3H
Posts: 46
Joined: Fri Sep 28, 2018 12:25 am

### Re: Question on Midterm

I would go with what is on the sheet. But at that point the numbers are on such a small scale where it won't really make a difference.

ariellasarkissian_3H
Posts: 46
Joined: Fri Sep 28, 2018 12:25 am

### Re: Question on Midterm

I would go with what is on the sheet. But at that point the numbers are on such a small scale where it won't really make a difference.

Alicia Gibbons 1B
Posts: 31
Joined: Fri Sep 28, 2018 12:17 am

### Re: Question on Midterm

"Known" values don't have sig figs (or so I was taught), so any constant given to you isn't going to determine the sig figs in your work. The point of using the long version of the constant is to ensure accurate calculations.

Bruce Chen 2H
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

### Re: Question on Midterm

I'm pretty sure as long as we convert to the significant figures and convert at the end, it should all be fine.

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