TOPIC: AIM:

Explain the purpose of a universal remote control.

The purpose of a universal remote control is______________________________________________________________________________http://htwins.net/scale2/?

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Systems ofmeasuremen

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1. METRIC SYSTEM

• Used by most of the world

• SI = Systems International

2. ENGLISH SYSTEM

•Only used in the U.S.

•inch, foot, yard, pound

SI Units

What is a unit?

• A known amount of measurement

• Yard, mile, meter, pound, gram, liter

Types of Units

1. METER (m)

•Metric unit of measure for length.

•1 meter = 100 centimeters (cm)

1 mm = width of a dime

•1 kilometer (km) = 1000meters

2. GRAM (g or gm)

•Metric unit of measure for mass

•1 kilogram (kg) = 1000gm

3. Liter (L)•Metric unit of measure for volume

•1000 milliliters (mL) = 1 Liter

PREFIX •Comes before the unit

•Changes the value of the word

•Kilo-•Hecto-•Deka-•Meter- •deci-•centi-•milli-

•Kangaroos•Hop•Down•Mountains•Drinking•Chocolate •Milk

Liter or Gram

•1 kilometer (Km) = 1000m

•1 kilogram (Kg) = 1000 gm

•1 kiloliter (KL) = 1000 L

Kilo = x 1000

1 centimeter (cm) = .01 m

1 centigram (cg) = .01g

1centiliter (cL) = .01L

Centi = 0.01

Milli = 0.001(m)

•1 millimeter = .001m

•1milliliter = .001L

•1milligram = .001g

CONVERSIONS EXAMPLES1. 100 mm = ?

cm100 mm = 10cm

Move 1 to the left

2. 34 km = ? mMove 3 to the right34 km = 34,000 m

3. 257 cm = ? hmMove 4 to the left257 cm = 0.0257 hm

•1cm = 10 millimeters•1m = 1000 millimeters