units and scientific notation Flashcards
what is a giga?
10^9
what is a mega?
10^6
What is a kilo?
10^3
What is a centi?
10^-2
what is a milli?
10^-3
What is a micro?
10^-6
What is a nano?
10^-9
What is a pico?
10^-12
What is an angstrom?
10^-10 meters
What is 1 eV equal to?
1.6*10^-19 joules
how are numbers in scientific notation multiplied?
multiply the significands and add the exponents
How are numbers in scientific notion divided?
divide the significands and subtract the number in denominator from the number in the numerator
Are the scientific notation raised to a certain power?
significand is raised too that power and multiply the exponent by that power
How are numbers in scientific notation added or subtracted?
they must have the same exponent.
one of the exponents must be converted into the other
How are exponents converted?
moving the decimal one place to the left the exponent increases by one
moving the decimal one plea to the right the exponent decreases by one
