Unit Conversion & Significant Figures: Crash Course Chemistry #2
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Date: 2022-04-04
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Comments and reviews: 9
education
To be precise you did not feel voltage, you felt current. Feeling voltage is like the sensation you get when your hair gets static. Voltage itself won't hurt you, rather the current that results from the voltage. It's a potential. Like gravity, falling does not kill you but the kinetic energy will. Experiencing voltage is experiencing potential, you don't notice it until that potential is converted
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To be precise you did not feel voltage, you felt current. Feeling voltage is like the sensation you get when your hair gets static. Voltage itself won't hurt you, rather the current that results from the voltage. It's a potential. Like gravity, falling does not kill you but the kinetic energy will. Experiencing voltage is experiencing potential, you don't notice it until that potential is converted
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Sniper
Hi Crash Course. Absolutely love your content. But I feel like this video didn't really feel like it belong to chemistry. Although your content is always great I'm sure as I proceed through your videos that this will hopefully all make sense soon enough.
I am on the hunt to find a topic for you to cover through crash course and once I find it I'll put it forward!
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Hi Crash Course. Absolutely love your content. But I feel like this video didn't really feel like it belong to chemistry. Although your content is always great I'm sure as I proceed through your videos that this will hopefully all make sense soon enough.
I am on the hunt to find a topic for you to cover through crash course and once I find it I'll put it forward!
reply
education
9: 55 - I understand that we need to round to 2 sig figs in the final answer, but I thought you round the answer to 310 or 3. 1x10-2? I thought you do that because the 5 in the ones place is right next to the 0 in the tens place, so you round up?
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9: 55 - I understand that we need to round to 2 sig figs in the final answer, but I thought you round the answer to 310 or 3. 1x10-2? I thought you do that because the 5 in the ones place is right next to the 0 in the tens place, so you round up?
reply
Mary
Could you please put a note on your video that the answer with the unit conversion is not correct. The answer is 2. 8 x 10-15 ly/s not 9. 3 x 10-12 ly/s. It messes students up when their calculation doesn't come out the same. Thanks
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Could you please put a note on your video that the answer with the unit conversion is not correct. The answer is 2. 8 x 10-15 ly/s not 9. 3 x 10-12 ly/s. It messes students up when their calculation doesn't come out the same. Thanks
reply
Sunroot
In the significant figures section he multiples 60 x 5. 0839. He says that 60 is two significant numbers but isn't it only 1? Trailing zeroes are not significant. So that answer should be 3 x10-2 and not 3. 0 x 10-2
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In the significant figures section he multiples 60 x 5. 0839. He says that 60 is two significant numbers but isn't it only 1? Trailing zeroes are not significant. So that answer should be 3 x10-2 and not 3. 0 x 10-2
reply
It's
I know almost nothing about chemistry, I suck at math, and I did not find this episode - or any of the ones I have watched thus far - difficult to comprehend at all. Thank you. :)
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I know almost nothing about chemistry, I suck at math, and I did not find this episode - or any of the ones I have watched thus far - difficult to comprehend at all. Thank you. :)
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Suhani
5: 26 The most ancient trick on the calculator and I just realized it today!
15 years of my life have been a lie 10: 27 but wait Hank don't kill me for that!
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5: 26 The most ancient trick on the calculator and I just realized it today!
15 years of my life have been a lie 10: 27 but wait Hank don't kill me for that!
reply
education
You guys should really re-upload this video with the corrected numbers, annotations have been removed so no one can see the corrections.
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You guys should really re-upload this video with the corrected numbers, annotations have been removed so no one can see the corrections.
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Joni
i did it on my calculator and i got 2. 824858757x10-15 what am i doing wrong? because i also googled it and got the same answer
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i did it on my calculator and i got 2. 824858757x10-15 what am i doing wrong? because i also googled it and got the same answer
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