SIG FIGURES

[ayaz]

HEY GUYS FOR THE PHY THE QUESTION THAT SAYS CORRCET TO 3 SIG FIGURES

is it ok to write 498.000V or was it 498V

[Gloamglozer]

Just 498 V will be fine.

[THem]

Zeros located to the right of another number after a decimal point are significant

So 498.000 is 6 SF

[Gloamglozer]

Zeros located to the right of another number after a decimal point are significant

So 498.000 is 6 SF

Yep.  However, if you've got 0.0000000000000000000498 V, then that's only 3 significant figures.  But still, I wouldn't recommend writing it that way.

[Squida]

Zeros located to the right of another number after a decimal point are significant

So 498.000 is 6 SF

lmao ownd

[ayaz]

soo i wrote 498.000V so would i lose the mark(1)

[Gloamglozer]

soo i wrote 498.000V so would i lose the mark(1)

I doubt it for physics in this case but for Chem, yes.

[THem]

soo i wrote 498.000V so would i lose the mark(1)

I doubt it for physics in this case but for Chem, yes.

I think he would because this question is specifically asking for 3 significant figures.

[Gloamglozer]

soo i wrote 498.000V so would i lose the mark(1)

I doubt it for physics in this case but for Chem, yes.

I think he would because this question is specifically asking for 3 significant figures.

Oh, that's right.  I forgot about that.  Sorry, it's been almost a day since I've read this topic.  In that case, then you're right. 

[ayaz]

soo i wrote 498.000V so would i lose the mark(1)

I doubt it for physics in this case but for Chem, yes.

I think he would because this question is specifically asking for 3 significant figures.

Oh, that's right.  I forgot about that.  Sorry, it's been almost a day since I've read this topic.  In that case, then you're right. 

wait... who's right??? will i get the mark if i said 498.000V??

thanks all

[Gloamglozer]

soo i wrote 498.000V so would i lose the mark(1)

I doubt it for physics in this case but for Chem, yes.

I think he would because this question is specifically asking for 3 significant figures.

Oh, that's right.  I forgot about that.  Sorry, it's been almost a day since I've read this topic.  In that case, then you're right. 

wait... who's right??? will i get the mark if i said 498.000V??

thanks all

THem is right.  You would lose the mark because the question explicitly says to give your answer to three significant figures.

Although, I would doubt they would ever do that in the exams.  For physics, my advice would be:

1.  If your calculator gives you an answer with no decimals, then put that down.
2.  If your calculator gives you decimals, round your answer to 2 decimal places.

[jasopan]

What if you write say 123.45 for working out (you clearly write it there)
But then write 123.5 in the box?