1.1.3 Converting between units

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Jack

Cards (52)

What are some common SI prefixes and their meanings?
kilo- (k): 1,000
mega- (M): 1,000,000
milli- (m): 0.001
micro- (μ): 0.000001
What are the seven base SI units?
Length: meter (m)
Mass: kilogram (kg)
Time: second (s)
Electric current: ampere (A)
Temperature: kelvin (K)
Amount of substance: mole (mol)
Luminous intensity: candela (cd)
What does the prefix "kilo-" represent in the SI system?
1,000
What is the symbol for the unit of luminous intensity in the SI system?
cd
What is a Desired Unit in unit conversion?
The unit you want to change to
What is a Given Unit in unit conversion?
The unit you start with
If you want to convert 500 meters to kilometers, what is the Desired Unit?
kilometers (km)
What does the prefix "milli-" represent in the SI system?
0.001
What are the two essential components needed for unit conversion?
Given Unit: The unit you start with
Desired Unit: The unit you want to change to
Why is knowing the Given and Desired Units important?
It makes the conversion easier to manage
If you have 500 meters, what is the Given Unit?
meters (m)
What are the key components in the conversion process?
Given value: 500 meters
Conversion factor: 1 m = 0.001 km
Converted value: 0.5 kilometers
What does the SI system provide for measurements?
A consistent way of measuring globally
How can you represent conversion factors in a table format?
| Given Unit | Desired Unit | Conversion Factor |
| --- | --- | --- |
| 1 meter (m) | 0.001 kilometers (km) | 0.001 km/m |
| 1 kilometer (km) | 1000 meters (m) | 1000 m/km |
How do you convert 500 meters to kilometers?
Multiply by 0.001 km/m
What is the conversion factor from meters to kilometers?
0.001 kilometers per meter
What is a conversion factor?
It tells how many of one unit equals another
What is a key point to remember during unit conversion?
Use the correct units throughout the calculation
What is the symbol for the unit of length in the SI system?
m
How do you convert from meters to kilometers?
Multiply by 0.001
How do you convert from kilometers to meters?
Multiply by 1000
What is the symbol for the unit of temperature in the SI system?
K
What is the symbol for the unit of time in the SI system? 
s
What is the result of converting 500 meters using the conversion factor?
0.5 kilometers
What is the symbol for the unit of electric current in the SI system?
A
Why are prefixes used with SI units?
To simplify large or small measurements
What are the common prefixes used in unit conversions?
kilo- (k)
milli- (m)
micro- (μ)
What does the prefix "micro-" represent in the SI system?
0.000001
What is the symbol for the unit of mass in the SI system?
kg
What does the prefix "mega-" represent in the SI system?
1,000,000
Why do you need a conversion factor?
To convert between different units accurately
What is the first step before converting units?
Identify the given and desired units
What should you do if the converted value is very different from the original?
Review your conversion factor and calculations
What is the symbol for the unit of amount of substance in the SI system?
mol
What are the conversion factors for meters and kilometers?
From meters to kilometers: multiply by 0.001
From kilometers to meters: multiply by 1000
What is the multiplier for a kilogram (kg)?
1,000
What is the conversion factor from kilometers to meters?
1000 meters per kilometer
How do you convert 2500 meters (m) to kilometers (km)?
Multiply 2500 m by 1 km/1000 m
Calculation: $2500 \text{ m} \times \left(\frac{1 \text{ km}}{1000 \text{ m}}\right) =$ $2.5 \text{ km}$
What is the relationship between meters and kilometers in unit conversion?
1 kilometer = 1,000 meters
To convert, divide meters by 1,000
How would you verify the conversion of 100 meters to kilometers?
Check if it equals 0.1 kilometers