Practice problems of the unit conversion - page 12 of 112
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: 2238
- 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? - Grocery store
You spend 4/5 of an hour at the mall. You spend 1/3 of that time in the food court. How many minutes are you in the food court? - The fence 2
A certain type of fencing sells for $9 a yard. How much will 10 2/3 yards of fencing cost? - Eight hours
Brigadier Franta ties a sheaf of hay in 20 minutes. Lujza in the same time only a quarter. How many sheaves will they tie together in 8 hours? - Wood dividing
Which equation calculates the number of 1/3-foot pieces that we can cut from a piece of wood that is 7 feet long?
- Sugar
From 3 tons of sugar, beet produced 480 kg of sugar. How many tons of sugar was produced from 17.5 tons of sugar beet? - Heart as pump
The heart pumps out 5.17 liters of blood in 1 minute. How many liters of blood are pumped per hour, and how much per day? - Aircraft nose down
How long will an airliner fall from a height of 10000 m at a speed of 1,000 km/h? - Compare
What's more? Fill in the signs of equality or inequality: 12 000mg ... 0,12kg 12t ... 0,12kg 14kg ... 0,014t 423mg ... 0,423kg 12,3g ... 0,001 23kg 89g ... 89 000kg - Uranium ore
Uranium ore contains 0.2% pure uranium, and pure uranium includes 0.07% fissile uranium. How many grams of fissile uranium has 2800 ton of uranium ore?
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