Practice problems of the unit conversion - page 9 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: 2207
- Pipe
Steel pipe has a length of 1.7 meters. About how many decimetres is 1/3 less than 8/9 of this steel pipe? - Distance 80716
What distance did the crane hook travel in 1 min at a constant speed of 15 cm/s? - Street 70104
What length will the 120 m long street have on the plan at a scale of 1:1500? - Distance 34601
On a map with a scale of 1:250000, the distance between the two mountain peaks is 32 mm. What is the actual length in km? - Compressive 34391
The excavator has an area of belts 5 m2, and a pressure of 40 kPa is created. How much compressive force does the excavator exert on the road? - Determine 17593
The volume of kerosene in the bottle is 10 cm³. Determine the weight of the fluid. (density ρ = 830 kg / m³) - Calculate 16623
Calculate the density of 2.5 tons of wood, knowing it takes up three cubic meters. Express the result in g / dm cubic. - Sprinter 15523
The sprinter ran 101 meters in 10 seconds. At what speed in km/h did he run? - Volume 8406
In a minute, 100 l of water flows out of a cube with a volume of 1000 m. How long will it take to empty? - Inflow 8339
The inflow to the well has a flow rate of 15 l / s. How long does it take for 3 m³ of water to flow into the well? - Distance 6211
On a map with a scale of 1:25 000, the distance between cities is 11 cm. What is the actual distance between cities? - Produces 6170
The machine produces 2520 parts in 1 hour. How many will they make in 33 minutes? - Blows 5730
When it is said that the wind blows 25 m/s, how much km/h blows? - Dimensions 4516
The course is 80m long and 35m wide. What will be its dimensions on a 1:500 map? - Two-quarters 4068
The theatrical performance began at 7.30 PM and lasted two-quarters of an hour with one 20-minute break. What time was the end of the show? - Calculate 3515
Calculate the actual ferry length between the measured and the new measure on the map 3 cm M 1: 300,000 - Distance 3197
What distance (in km) will the jet fly at 500 km/h in 12 minutes? - Dimensions 2761
The model aircraft is made on a scale of 1: 250. Length is 200mm, wingspan 200mm. Find the dimensions of the actual aircraft. - Manganin
How long must a manganin wire with a diameter of 0.8 mm have a value of 10Ω? - Weight fraction
To prepare the brine, we need 1500 g of an aqueous salt solution with a weight fraction of 0.08. What salt weight and water volume do we need to prepare it?
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