High School

Which numeric sequence is in the correct ascending order?

A. Nano, Pico, Micro, Milli
B. Milli, Micro, Kilo, Mega
C. Tera, Giga, Mega, Kilo
D. Kilo, Mega, Tera, Giga

Answer :

To determine which numeric sequence is in the correct ascending order based on size, let's look at the metric prefixes and their values.

Metric prefixes order from smallest to largest:
1. Nano - [tex]\(10^{-9}\)[/tex]
2. Pico - [tex]\(10^{-12}\)[/tex]
3. Micro - [tex]\(10^{-6}\)[/tex]
4. Milli - [tex]\(10^{-3}\)[/tex]
5. Kilo - [tex]\(10^{3}\)[/tex]
6. Mega - [tex]\(10^{6}\)[/tex]
7. Giga - [tex]\(10^{9}\)[/tex]
8. Tera - [tex]\(10^{12}\)[/tex]

Now let's take a look at each option:

a. Nano, Pico, Micro, Milli
- Order of magnitude starting from Nano ([tex]\(10^{-9}\)[/tex]), then Pico ([tex]\(10^{-12}\)[/tex]), then Micro ([tex]\(10^{-6}\)[/tex]), and finally Milli ([tex]\(10^{-3}\)[/tex]).
- This order would typically be incorrect if following standard ascending positive powers due to incorrect arrangement of Pico.

b. Milli, Micro, Kilo, Mega
- Starts at Milli ([tex]\(10^{-3}\)[/tex]), then goes to Micro ([tex]\(10^{-6}\)[/tex]), then Kilo ([tex]\(10^{3}\)[/tex]), then Mega ([tex]\(10^{6}\)[/tex]).
- This order does not arrange the prefixes from the smallest to the largest correctly, as Micro should be smaller than Milli.

c. Tera, Giga, Mega, Kilo
- Tera ([tex]\(10^{12}\)[/tex]), Giga ([tex]\(10^{9}\)[/tex]), Mega ([tex]\(10^{6}\)[/tex]), and Kilo ([tex]\(10^{3}\)[/tex]).
- This sequence is in descending order, not ascending.

d. Kilo, Mega, Tera, Giga
- Kilo ([tex]\(10^{3}\)[/tex]), Mega ([tex]\(10^{6}\)[/tex]), Tera ([tex]\(10^{12}\)[/tex]), and Giga ([tex]\(10^{9}\)[/tex]).
- This sequence is not entirely in ascending order either, as Giga does not follow Tera correctly.

Therefore, the correct sequence in ascending order is option a: Nano, Pico, Micro, Milli since the order is based on measuring power starting from the smallest.