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level: Units and Conversions

Questions and Answers List

level questions: Units and Conversions

Question	Answer
How do you abbreviate the international system of units?	SI
How many base units are in the SI system?	7
How many base quantities are in th SI system?	7
What is the fundamental SI base unit used to measure distance?	Metre
What is the fundamental SI base unit used to measure mass?	Kilogram
What is the fundamental SI base unit used to measure the quantity of time?	Second
What is the fundamental SI base unit used to measure the quantity of a substance?	Mole
What is the fundamental SI base unit used to measure the quantity of luminous intensity?	Candela
What is the fundamental SI base unit used to measure the quantity of temperature?	Kelvin
What is the fundamental SI base unit used to measure the quantity of electric current?	Ampere
The SI base unit of kelvin (K) is used to measure the quantity of?	Temperature
The SI base unit of metre (m) is used to measure the quantity of?	Length
The SI base unit of second (s) is used to measure the quantity of?	Time
The SI base unit of candela (cd) is used to measure the quantity of?	Luminous intensity
The SI base unit of mole (mol) is used to measure the quantity of?	Amount of substance
The SI base unit of ampere (A) is used to measure the quantity of?	Electric current
The SI base unit of kilogram (kg) is used to measure the quantity of?	Mass
What is the unit symbol for Metre?	m
What is the unit symbol for Kilogram?	kg
What is the unit symbol for Mole?	mol
What is the unit symbol for Seconds?	s
What is the unit symbol for Candela?	cd
What is the unit symbol for Kelvin?	K
What is the unit symbol for Ampere?	A
The ___ factor is the number of times the smaller unit goes in to the larger unit.	Conversion
You can convert units by using scaling...	Prefixes
To convert from bigger units to smaller units do you divide or multiply by the conversion factor?	Multiply
To convert from smaller units to bigger units do you multiply or divide by the conversion factor?	Divide
Equations (formulas) show relationships between….	Variables
Tera, giga, mega, kilo, hecto, deka, deci, centi, milli, micro, nano and pico, are all examples of what?	Prefixes
The prefixes deci, deka and hecto are ___ used.	Rarely
Prefixes that are multiples or submultiples of 1000 are ___ used.	Preferably
SI symbols should only be used in to indicate the units they reprersent if the symbol has a ___ preceding it.	Number
Prefixes indicate the miltiple or the ___ of a unit.	Fraction
Prefixes are intended to to create appropriately sized units to ensure the numbers are read much...	Easier
The multiplication factor for Tera is 10¹². Write the multiplication factor numerically.	1 000 000 000 000
The multiplication factor for Giga is 10⁹. Write the multiplication factor numerically.	1 000 000 000
The multiplication factor for Mega is 10⁶. write the multiplication factor numerically.	1 000 000
The multiplication factor for Kilo is 10³. Write the multiplication factor numerically.	1 000
The multiplication factor for Hecto is 10². Write the multiplication factor numerically.	100
The multiplication factor for Deka is 10¹. Write the multiplication factor numerically.	10
The sub-multiplication factor for Deci is 10⁻¹. Write the sub-multiplication factor numerically.	0.1
The multiplication factor for Centi is 10⁻². Write the multiplication factor numerically.	0.01
The multiplication factor for Milli is 10⁻³. Write the multiplication factor numerically.	0.001
The multiplication factor for Micro is 10⁻⁶. Write the multiplication factor numerically.	0.000 001
The multiplication factor for Nano is 10⁻⁹. Write the multiplication factor numerically.	0.000 000 001
The multiplication factor for Pico is 10⁻¹². Write the multiplication factor numerically.	0.000 000 000 001
What is the prefix symbol for Tera?	T
What is the prefix symbol for Giga?	G
What is the prefix symbol for Mega?	M
What is the prefix symbol for Kilo?	k
What is the prefix symbol for Hecto?	h
What is the prefix symbol for Deka?	da
What is the prefix symbol for Deci?	d
What is the prefix symbol for Centi?	c
What is the prefix symbol for Milli?	m
What is the prefix symbol for Nano?	n
What is the prefix symbol for Pico?	p
How do you write 10 to the power of 6?	10⁶
How do you write 10 to the twenty forth negative power?	10⁻²⁴
how do you write 10 to the power of 24?	10²⁴
How do you write 10 to the 12th negative power?	10⁻¹²
How do you write 10 to the third power?	10³
A positive power means how many times to ___ by the number.	Multiply
A negative power means how many times to ___ by the number.	Divide
For negative powers of 10, move the decimal point to the...	Left
For positive powers of 10, move the decimal point to the...	Right
1 000 000 000 Write the number in power of ten form.	10⁹