Practice problems of the unit conversion - page 7 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
- Travel 4858
How long will a 1 km long tunnel take to travel at a speed of 100 km per hour? - Time
Write time in minutes rounded to one decimal place: 3 h 48 m 45 s. - Maria 6
Maria drank 3 liters of water last week. Her friend drank twice as much water as Maria. How many milliliters of water did they both drink? - Wire cut 2
We can cut a length of wire into five pieces, each 24 cm long. How many pieces, each 15 cm long, can be cut from the wire? - Frequency of oscillation
A weight of 1 kg was suspended from the spring, and the spring was extended by 1.5 cm. Determine the frequency of the natural oscillation of the resulting oscillator. - Coke and coal
20.1 tons of coke is produced from 30 tons of black coal. How much coke is made from 1 kilogram of coal? - Two dogs
Izzy's dog is 10 1/2 years old. Paige's dog is 18 months old. How many years older is Izzy's dog? - Bucket
How many 5-liter buckets do you have to pour into a 0.2 m³ container to make it full? - Bulb
A 60 W bulb consumes 0.12 kWh of electricity. How long did she stand light without a break? - Pellets
One pallet of pellets costs 5040 without VAT. One pallet weighs 1050 kg. How much do 1-ton costs? - Scale of the map
Determine the map's scale if the distance between A and B is 720 km and the distance on the map is 20 cm. - Car model
The car model is 52 mm long, and the real car is 4524 mm long. What was the scale of the model car? - Car
Car is traveling 98 km per hour. How long distance does it travel in 1 minute? - A trip to the peak Dry
Calculate what percentage is rising trip from Strečno to peak Suchý (Dry peak) longer than the descent back. Team trio of tourists (Palo, Peter, and Andrew) rise took 4:21 and descent 3:08. - Dimension 82053
The forest strip is 450 m long. Calculate the section length that expresses this dimension on the 1:12500 scale plan. - Cities 81317
The cities are 400 km apart; how many cm is it on a 1:400,000 scale map? - Kilometer 58281
Write a fraction, which part: 1) kilometer is 31 m 2) minutes is 42 seconds 3) the day is 10 o'clock - Produces 48363
The shoe company produces 36,960 pairs of shoes a year. How many pairs of shoes do they produce on average per month? - Average 41841
What work do we do if we pull out a 58mm nail with an average force of 350N? - Machined 30031
The lathe machined 27 parts in 9 minutes. How many of them work at the same rate per hour?
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