### conversion

Metric System

1000 m = 1 km

1 inch = 2.54 cm

1 m = 100 cm

1 gallon = 3.785 L

1 m = 1000 mm

101.325 Pa = 1 atm

1 L = 1000 mL

1 foot = 12 inches

1000 g = 1 kg

1 mile = 5280 ft

Metric System

60 s = 1 hr

24 hrs = 1 day

365 days = 1 year

100 yr = 1 century

1 atm = 760 mmHg

Dimensional analysis:

The technique of converting between units is called dimensional analysis.

Conversion factors: Conversion factors are the ratios of equivalent measurements. It can also be used when converting from English to Metric and vice-versa. In a conversion factor, the numerators on both sides of the equation are equal.

Ex. = = 1

or = = 1

How do you know which unit of a conversion factor must be in the denominator? The unwanted units are placed at the bottom so that they will be cancelled out; the desired unit is on top so that it would be retained.

Ex. Convert 5.6 dm (decimeter) to meters.

The problem is: ? m = 5. 6 dm

By definition, 10 dm = 1 m

Therefore we write,

(5.6 dm) (1 m) /(10 dm) = 0.56 m

1000 m = 1 km

1 inch = 2.54 cm

1 m = 100 cm

1 gallon = 3.785 L

1 m = 1000 mm

101.325 Pa = 1 atm

1 L = 1000 mL

1 foot = 12 inches

1000 g = 1 kg

1 mile = 5280 ft

Metric System

60 s = 1 hr

24 hrs = 1 day

365 days = 1 year

100 yr = 1 century

1 atm = 760 mmHg

Dimensional analysis:

The technique of converting between units is called dimensional analysis.

Conversion factors: Conversion factors are the ratios of equivalent measurements. It can also be used when converting from English to Metric and vice-versa. In a conversion factor, the numerators on both sides of the equation are equal.

Ex. = = 1

or = = 1

How do you know which unit of a conversion factor must be in the denominator? The unwanted units are placed at the bottom so that they will be cancelled out; the desired unit is on top so that it would be retained.

Ex. Convert 5.6 dm (decimeter) to meters.

The problem is: ? m = 5. 6 dm

By definition, 10 dm = 1 m

Therefore we write,

(5.6 dm) (1 m) /(10 dm) = 0.56 m

## 6 Comments:

At 4:50 AM, Anonymous said…

hitsura

At 4:52 AM, Anonymous said…

hitsura

At 4:54 AM, Anonymous said…

hitsura

At 6:18 AM, Anonymous said…

bakit gnun db dapat i convert mo pa na sa ... daw maghtg bla ang teacher nga nid mo ang mag convert sang meter kg cm daw himuun mo ang cm gawing m daw i convert mo pa na

At 5:16 AM, Anonymous said…

pano b malalaman kong imumultiply o ididivide ang conversion?

At 10:10 PM, Anonymous said…

Inсгediblе pοintѕ.

Solid arguments. Keеp up the good work.

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