Count the significant figures in each length

Question

Accepted Answer

Welcome back everyone. We need to determine the number of significant figures in the following integer, 0.650 m. We're going to begin by recalling that we move from left to right when counting sig figs and we would hit the left most non zero number as our first intruder. And then we would continue to count until we reached the end of the number towards the right. So looking at our integer 0.650 m, recognize that our first number is zero, then we have a decimal place. So we're going to keep going. We have another zero followed by a third zero in which our first non zero number is a six. So this would be our first significant figure. Then we reached the number five towards the right, which is our second non zero number. So, so far we have two significant figures. And then after five, we have a zero which follows and zero would be our third significant figure now because it is towards the right after our non zero numbers. This zero is considered significant. This zero here is considered significant And that is due to the fact that our count of significant figures continues on until we reach the end of our integer. And so that's why we consider the 65 and zero are three significant figures. And so we can say therefore, we have three significant figures in this integer. And so three significant figures would be our final answer to complete this example corresponding to choice be in the multiple choice. I hope everything I reviewed was clear. If you have any questions, please leave them down below and I'll see everyone in the next practice video.

Count the significant figures in each length

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