Practice problems of the unit conversion - page 22 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
- Capacity 82978
The pool has a maximum water capacity of 1200 hl. How many hours will the pool be half complete if the first inflow is 200 l per minute and the second 100 l per minute? - Distance 82493
The speed of the moving vehicle is 40 km/h, and it must cover a distance of 1080 meters. How many minutes will it take? - Proportion 81558
Pour 9 dl of dye into 100 liters of water. What will be the proportion of dye in the resulting mixture? Express as a percentage. - Travels 81320
The car travels from Prague to Brno at a speed of 80 km/h and still has 15 minutes to drive. How far is it from Brno? - Calculate 80550
A cheetah weighing 38 kg moves at a speed of 108 km/h. Calculate its kinetic energy - Kilograms 80481
What is the weight of a sheet of glass 75 cm x 120 cm and 2 mm thick if one cubic meter of glass weighs 2500 kilograms? - The cyclist - avg speed
The cyclist make a distance of 25 km at an average speed of 20 km/h. How long did the trip take him (in hours and minutes)? - Milan's 8103
Peter and Milan let go of the kites. Peter's kite flew to 8m 35dm 16cm. Milan's kite flew 60cm lower. To what height did Milan's kite fly? - Chocolates 7429
They delivered 75 kg of chocolates to 214 candy boxes at the Orion plant. Some weighed 500g, others 250g. How many boxers were there? - Semi-sweet 6515
A bottle of red semi-sweet wine with a volume of 0.75L has a sugar content: of 18-45g/dm³. CHow much is it in terms of sugar cubes? - Temperature 6378
How many liters of 48 °C warm water do we need to add to 1.2 hl of 8 °C warm water to form a mixture with a temperature of 24 °C? - School 6127
The gym at the school is 12 m wide and 1800 cm long. Draw it on a scale of 1:500 - Corridor 5979
A mature man, whose step is 3/4 m long, crossed the corridor 46 steps. How many steps will a boy with 60 cm long steps take her? - Measures 5876
How many km does the trip's route actually measure, which measures 28 cm on a map with a scale of 1: 75,000? - Rollerbladed 5674
Martin rollerbladed 1 km per minute. What distance would he cover at the same speed in 3 3/4 hours? - Material 5296
What material is the casting that weighs 45.2 g and has a volume of 4 cm³? If it is a simple chemical element, write its chemical symbol. - Exhibition 4753
The carpenter has to attach slats for hanging paintings on the exhibition hall wall, which has a length of 39 m and 40 cm. The length of one bar is 2 m. Will 22 laths be enough for carpenters? - Movement 4049
The crane in the assembly hall will move by 22.5 m in 1 1/4 minutes. What speed does it move if it is a steady movement? - A turkey
Alana was cooking a turkey. It takes 4 1/2 hours to cook. She checks it every 20 min, 1/3 of the hour. How many times will she check it before it is cooked? - Exchange office
We get € 1.2 for one pound in the exchange office. For 1 € we get 4 Polish zlotys. Michael found 300 zlotys at home and wanted to turn them into pounds. How many pounds will he get for them?
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