Podcast
Questions and Answers
When rounding a number, if the last digit is less than 5, what happens to the number of significant figures?
When rounding a number, if the last digit is less than 5, what happens to the number of significant figures?
- It depends on the number
- It increases
- It remains the same
- It decreases (correct)
In scientific notation, how is 100.8 s expressed?
In scientific notation, how is 100.8 s expressed?
- $0.1008 \times 10^3$ s
- $10.08 \times 10$ s
- $1.008 \times 10^2$ s (correct)
- $1.08 \times 10$ s
How many significant figures are there in 0.00580 km?
How many significant figures are there in 0.00580 km?
- 2
- 5
- 3 (correct)
- 4
If the last digit is 5 when rounding a number, what rule is followed to determine the new digit?
If the last digit is 5 when rounding a number, what rule is followed to determine the new digit?
What happens to the number of significant figures when zeros are used to space the decimal point?
What happens to the number of significant figures when zeros are used to space the decimal point?
Expressing 1.47 with two significant figures results in which number?
Expressing 1.47 with two significant figures results in which number?
In the value 210.0 g, how many zeros are considered as significant figures?
In the value 210.0 g, how many zeros are considered as significant figures?
If a digit is increased by one when rounding a number, what could happen to the number of significant figures?
If a digit is increased by one when rounding a number, what could happen to the number of significant figures?
'The zeros between two significant figures are also significant' - this statement is true when discussing:
'The zeros between two significant figures are also significant' - this statement is true when discussing:
'If the last digit is greater than 5, then the digit on its left is increased by one.' This statement refers to which rounding principle?
'If the last digit is greater than 5, then the digit on its left is increased by one.' This statement refers to which rounding principle?
