What is the main purpose of using significant figures in measurements?

• To make numbers look more complex

• To ensure the result is not more precise than the measurements

• To simplify calculations

• To convert units

Which digits are considered significant in the number 0.00700?

• None of the digits

• Only the non-zero digits

• The non-zero digits and trailing zeros

• All digits including leading zeros

Why are leading zeros not considered significant?

• They are always counted as significant

• They are part of the measurement

• They do not affect the precision of the measurement

• They are only placeholders

In the number 370., how many significant figures are there?

• One

• Four

• Two

• Three

What does the decimal point in 370. indicate?

• The number is rounded

• The measurement is precise to the nearest ten

• The number is an approximation

• All three digits are significant

How many significant figures are in the number 52?

• One

• Two

• Four

• Three

Why are trailing zeros considered significant when a decimal point is involved?

• They indicate the precision of the measurement

• They are placeholders

• They are not significant

• They are always significant

In the number 7.00, how many significant figures are there?

• Three

• Two

• One

• Four

What is the significance of zeros between non-zero digits?

• They are ignored

• They are significant

• They are placeholders

• They are not counted

How can ambiguity in significant figures be avoided in the number 37,000?

• By adding a decimal point

• By changing the units

• By removing the zeros

• By rounding the number