Levi's Physics Portal For O'Level And A'Level Students
# levippsUNITCONV ERSIONS#1
**READ THIS TO HELP YOU IN CONVERSIONS**
In physics its very important we get to know how to convert units so as to get accurate results in research work. You would know how to convert a lap of chicken into bits of meat for your siblings, you would know how to convert N1000 to 10 pieces of N100 note, do you get it now?
#1 Conversion
In physics we have three basic fundamental units i.e the standard units which are metre (m) for length , kilogram (kg) for mass and second (s) for time. If you are not questions to solve in this unit, you need to convert them to the standard units!
When you convert by multipling, to get the reverse you divide and vice versa.
look , 200 cm / 100 = 2m
to get back cm now is 2m x 100 = 200 cm.
When say 5 miligoat or 5 milirat or 5 milichicken it written as 5 x 10^-3 goat or rat or chicken.
If it is micro then it will be 10^-6, if it is pico then its 10^-12
#2 Conversion Of Length
milimetre( mm )=>metre( m)
1 mm = 0.001 m = 1 x 10^-3 m
i.e you divide it mm by 1000 to get m
1 mm^2 = 0.000001 = 1 x 10^-6 m^2
i.e you divide mm^2 by 1000^2 to get m^2
1 mm^3 = 1 x 10^-9 m^3
i.e you divide mm^3 by 1000 to get mm^3
cm => m
1 cm = 0.01 m
i.e you divide cm by 100 to get m
to get m^2 divide cm by 100^2
to get m^3 divide cm by 100^3
you get right, just like mm.
#3 Conversion Of Mass
gram => kilogram
1 g = 0.001 kg
i.e you divide g by 1000 to get kg
#4 Conversion Of Time
1 hour = 60 minutes
i.e you multiply hour by 60 to get it in minutes
1 minutes = 60 seconds
i.e you multiply minute by 60 to get in seconds
Am you get it now? lets take a test
**** Test ****
1)Convert 1 hour to seconds
2) Convert 5 kg to grams
3) Convert 0.02mm^2 to m^3
**as for number 3 , first convert the mm^2 to mm , then the value of mm convert it to m^3
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1. 1 hour = 60min, 1min = 60sec 60 x 60= 3600 sec.
2. 1kg = 1000g, 5 x 1000 = 5000g.

Oscar4real:
1. 1 hour = 60min, 1min = 60sec 60 x 60= 3600 sec.
2. 1kg = 1000g, 5 x 1000 = 5000g.

nice