MEASUREMENT

April 19, 2023

Bell Work 8/16

What do tool could you use to measure distance travelled?

International System of Measurement

is accepted as the standard for _________________ throughout the most of the world.

In the United States we use the ______________ _______________ as our system of measurement.

Scientists around the world use the _______________ _______________ of Units, or SI, because SI uses certain metric units that are based on units of _________.

______________ are used with units to change their names to larger or smaller units.

Base units used in SI are the meter, __________, gram, and _____________.

Base Units

Base Unit Measurement

Meter _________________

_________________

Volume of a liquid

(volume of a solid is unit3)

_______________ Mass

Second _______________

Each measurement is measured by a different ___________.

Measurement

Tool Unit

Length/Distance

Ruler/meter stick

_____________

_____________Triple beam

balance _____________

Weight ______________ Newton

Volume

Liquid: ______________

Solid: _____________

Liquid: ______________

Solid: ______________

______________ thermometer ______________Time ______________ ______________

Prefixes are attached to ________

________ to form larger or smaller

units of measurement.

Prefixes

Pre-fixDefinition (value) of

Pre-fixkilo ____ ______________

_________ one hundreddeka _________________

______________meter, gram, liter,

second___________ one tenth

centi one hundredthmilli ____ ______________

A ______________ is used to

represent each ______________ and base unit.

SymbolsUnit Symbol

_________ khecto ______Deka da

__________________ ggmetermeter ____________literliter ____________

__________________ ssdeci d

_________ c_________ m

NOTE: The base unit must be the ________________.

(Example: you _____________ convert 1 meter to 100 kilograms)

Practice

Examples- Convert the following (remember kilo means 1000):

1) 1km = ___________ meters? (larger to smaller)

Answer: 1km x 1000 = _______ m

2) 10 g = ___________ kg? (smaller to larger)

Answer: 10g divided by 1000 = __________kg

Acronym for pre-fixes:

kking ing hhenry enry DDied ied bby y ddrinking rinking cchocolate hocolate mmilkilk

Stair Step Method

A short cut that may also be used is the stair step method.

When converting from one unit to another:

1. Move the decimal ________ space for ___________ step taken on the stair case.

2. Move the decimal to the ___________ if you go ________ the stair case.

3. Move the decimal to the ___________ if you go ________ the stair case.

Example- Convert the following:1) 10 hm= ____________ dm? Moving from the h-step to the d-step

requires three steps to the right on the staircase.

Therefore, move the decimal three places to the right.

Answer: 10 hm = ____________ dm

Example- Convert the following:

2) 5 cL= ____________ dL? Moving from the c-step to the d-step

requires one step to the left on the staircase.

Therefore, move the decimal one place to the left.

Answer: 5 cL = ____________ dL