Scientific Notation and Metric System Quiz Review

Scientific Notation

B x 10^n

B

A number greater than 1, but less than 10

n

Any whole number

Negative=Less, Negative exponents represent numbers less than one(move right -). Try this example: 0.0032 mm

3.2 × 10 ^-3

Positive=More, Positive exponents represent numbers greater than one(move left +). Try this example: 76,100 m

7.61 × 10^4

Converting From Scientific Notation. Try this example 9.450 × 10^-6 L (hint:move left)

0.000009450 L

Convert into Scientific Notation: 6.2 × 10^7 mg (hint: move right)

62,000,000 mg

Mass

The amount of matter an object contains

Base unit for Time

Seconds(s)

Base unit for Length

meter(m)

Base unit for Mass

kilogram(kg)

Base unit for Temperature

Kelvin(K)

Base unit for Amount of Substance

mole(mol)

Prefixes are based of units of 10 and can be applied before any base unit. What are all of the names of prefixes and their symbols?

Giga(G), Mega(M), kilo(k), deci(d), centi( c), milli(m), micro, nano(n)

Practice the following unit conversions: a)2000mm=__m. B) 30mg=___g c)45=_____mg

a) 2m b)0.03 g c)45,000,000mg