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What happens to the numerical value and the unit of a measurement that is multiplied by a conversion factor?
The conversion factor has the effect of multiplying the measurement by 1, thereby not changing the measurement.
Example: you measure 5 inches, and want to convert to millimeters.
Since 1 inch = 25.4 mm (an equality), divide both sides by (1 inch) to get:
(1 inch)/(1 inch) = (25.4 mm)/(1 inch) ---> 1 = 25.4 (mm/inch)
so if you multiply 5 inches by 1, you still have 5 inches.
Multiplying by [25.4 (mm/inch)] is the same as multiplying by one.
Therefore (5 inches) * 1 = (5 inch) * 25.4 (mm/inch) = 127 inch*mm/inch
The 'inches' cancel and you have 5 inches = 127 mm
Some people write it like this to make it easier to cancel the units:
25.4 mm | 5 inch
--------------------- = 127 mm
1 inch |
likewise, if you had used a metric ruler & measured 127 mm instead of inches:
1 inch | 127 mm
----------------------- = 5 inches
25.4mm |
So rather than try to remember if you multiply or divide by 25.4, just look to
see which operation will cancel the units and leave the new desired units.
What else can I help you with?
What the mass of a material in a given volume called?
It is the mass in that volume. There is no special name unless the volume happens to be a unit volume on some measurement scale.
Why is measuring speed important?
So that we understand what happens around us, helps the police measure at which speed the speeding cars are travelling at to fine them, helps traffic cameras capture cars driving at a certain speed.
What does the power of a machine tell you?
How fast work happens or how quickly energy is transferred.
How can you tell how accurate a measurement is?
To check the precision of an instrument its apparent measurement must be compared to a known measurement. The difference between the measured quantity divided by the known quantity is expressed as a % precision of the instrument, or calibration. Most instruments when being calibrated are tested against multiple known quantities throughout the range of the instrument. Thus the precision of the instrument is determined throughout it's full range of measurement.
What happens if you swallow dried super glue?
Nothing happens
What happens to the cube of a no if the no is multiplied by 5?
The cube is multiplied by 53 = 125.
What happens when crossing over?
They do not get multiplied
What happens when a fraction is multiplied by its reciprocal?
When any number is multiplied by its reciprocal, the product is ' 1 '.
What happens to the area and the perimeter of a rectangle when the length and width are multiplied by 4?
Area is multiplied by 16. Perimeter is multiplied by 4.
What happens to a number when it is multiplied by 10?
it become and even number
What happens to a mixed number when it is multiplied by a fraction?
The answer depends on the fraction.
What happens to the cube of a no if the nos multiplied by 4?
If you multiplied a number by 4, then the cube of the number would be increased by a factor of 16.
What energy conversion happens in a cell?
what type of cell?
What happens to the area of a square when it's side is multiplied by 8?
If you want it to remain a square then the base is multiplied by 8 also and the area is multiplied by 64. If not, and you multiply the sides only, it is multiplied by 8. If you multiply only one side, then the area is multiplied by 4.5
What happens when two irrational numbers are multiplied?
You get a product which can be rational or irrational.
What happens to the perimeter and the area of a rectangle if the length and the width are multiplied by the same number Use diagrams to explain?
If the length and width of a rectangle are multiplied by the same number, then . . . -- the perimeter is multiplied by the same number -- the area is multiplied by the square of the numbner
What happens to a whole number when multiplied by a fraction greater 1?
It increases the value.
