Practice problems of the unit conversion - page 5 of 111
The International System of Units (SI) is the standard system of units used in most countries around the world. It is based on seven base units: the meter for length, the kilogram for mass, the second for time, the ampere for electric current, the kelvin for temperature, the mole for amount of substance, and the candela for luminous intensity. These units can be converted to other units using conversion factors, such as the relationship between meters and centimeters (1 meter = 100 centimeters). Other common SI unit conversions include:1 liter = 1000 milliliters
1 gram = 1000 milligrams
1 joule = 1 watt-second
1 newton = 1 kilogram-meter per second squared
In the SI system, units can be multiplied or divided by powers of ten to create larger or smaller units. These multiples are called prefixes. The most common prefixes and their meanings are:
mega- (M) = 1,000,000 (e.g. 1 megahertz = 1,000,000 hertz)
kilo- (k) = 1000 (e.g. 1 kilogram = 1000 grams)
centi- (c) = 0.01 (e.g. 1 centimeter = 0.01 meters)
milli- (m) = 0.001 (e.g. 1 milliliter = 0.001 liters)
micro- (µ) = 0.000001 (e.g. 1 microgram = 0.000001 grams)
nano- (n) = 0.000000001 (e.g. 1 nanosecond = 0.000000001 seconds)
It is important to note that, when using these prefixes, the prefix should be written before the unit symbol.
Number of problems found: 2215
- Density 30441
How many kg weighs 1 m³ of gold? Au gold density is 19.3 kg · dm − 3 - Granite 19643
The granite block weighs 8.7 tons. The density of granite is 2.9 g / cm³. Find the volume of the block in m³. - Density 8681
What volume is 1/2 kg of gold? The density of gold is 19.3 kg/dm³. - A road
A road on a map measures 8cm long. The scale of the map is 25000. Calculate the actual length of the road - The corn
When the corn was ready for harvest 75 days later, it measured 2 ¼ meters high. What is the measurement in centimeters? - Fahrenheit 2
Fahrenheit temperature is found by dividing the degree Celsius by 5/9 and then adding 32 to the quotient. Find the Fahrenheit temperature if the degree of Celsius is 40. - Seconds flying
The hot air balloon flew for 8 hours, 8 minutes, and 8 seconds. How many seconds did it take to fly 10 hours? - The silver
The silver ring weighs 10 grams. The ring contains 850 per mille of pure silver. Calculate the amount of pure silver in grams. - Soda factory
The soda factory produced 50 hl of lemonade, which they filled into 2 l bottles. How many bottles did they fill? - Morning
Jana rose in the morning in the quarter to seven. She slept nine and a half hours. When did she go to sleep? - Resistance
A resistor having an electrical resistance of 1.5 k ohms passes an electrical current of 0.1 A. Calculate the voltage between the terminals of the resistor. - Sidewalk 70074
The sidewalk is 500m long. How will it be marked on the plan on a scale of 1:200? - Volume 32761
What is the volume of 320 kg of ice floes in liters? - Determine 30701
Determine the density of sugar if 0.25 cubic meters in the container weighs 0.403 tons - Kilometers 7415
The Earth's distance from the moon is 3,844.10 to the eighth meter. How many kilometers is it? - Five-sixths 4748
The metal rod measures 1.2 meters. How many decimetres is a quarter of a metal bar smaller than five-sixths of a metal bar? - Kilometer 2864
One cubic decimeter of seawater contains 0.000 000 01 grams of gold. How many kilograms of gold is in one cubic kilometer of seawater? - The bicycle
The bicycle runs 30 mph for 20 minutes. How far it goes? - Map scale
On a map, on a scale of 1:50000, what is the distance in kilometers that 6 cm on the map represents? - How many 27
How many curtains 1.5m long can you cut from a piece of curtain material 15000 cm long?
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