M1.2_SI unit & Prefix

1 kg = __________ grams

• 1 x 10³
• 1 x 10^-3
• 1 x 10²
• 1 x 10^-2

1 hm = _________ meters

• 1 x 10²
• 1 x 10^-2
• 1 x 10³
• 1 x 10^-3

The SI system of measurement has _____ base units.

• 4

• 5

• 6

• 7

Answer explanation

The 7 base units of the SI system are:

length

mass

time

electric current

amount of substance

thermodynamic temperature

luminous intensity

Which of the following is NOT an SI base unit?

• meter

• kilogram

• second

• mile

Answer explanation

Mile is not a base unit of the SI system. Mile is a unit under the imperial system.

The prefix "nano" means: ____________________

• 1 x 10^-9
• 1 x 10⁹
• 1 x 10⁶
• 1 x 10^-2

The prefix "micro" means: ____________________

• 1 x 10^-6
• 1 x 10⁶
• 1 x 10³
• 1 x 10^-3

The prefix "milli" means: ____________________

• 1 x 10^-3
• 1 x 10³
• 1 x 10⁶
• 1 x 10^-6

The prefix "centi" means: ____________________

• 1 x 10^-2
• 1 x 10²
• 1 x 10^-1
• 1 x 10³

The prefix "deci" means: ____________________

• 1 x 10^-1
• 1 x 10¹
• 1 x 10³
• 1 x 10^-2

The prefix "hecto" means: ____________________

• 1 x 10³
• 1 x 10²
• 1 x 10^-2
• 1 x 10^-3