Questions: Which choice has zeros that are not significant? 1.00 kg 2.05 m / s 1,000 J 1.30 N

Solution Steps

Significant figures are the digits in a number that carry meaningful information about its precision. Zeros can be significant or not, depending on their position in the number.

1. 1.00 kg: The zeros here are significant because they are trailing zeros in a decimal number, indicating precision.
2. $2.05 \mathrm{~m} / \mathrm{s}$: The zero here is significant because it is between two non-zero digits.
3. 1,000 J: The zeros here are not significant because they are trailing zeros in a whole number without a decimal point.
4. 1.30 N: The zero here is significant because it is a trailing zero in a decimal number, indicating precision.

Final Answer