Practice problems of the unit conversion - page 4 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: 2236
- Clock
How many hours are 15 days? - Customary length
Convert length 65yd 2 ft to ft - Hours
How many hours are $n days? - Pound2kilos
How many pounds equal 1 kilogram? - Speed of light
Calculate the speed of light if a distance of 3000 km travels in 0.01 s. - The shop
The shop has three hectoliters of water. How many liter bottles is it? - Fan
The fan has a speed of 179 RPM. Calculate for the time of one fan period. - 1000km 5469
1000km, how much is cm? - Express 66
Express 6 whole 7/10 hours in minutes. - Time
16.2 days ..... how many hours is it? - 1000000 4135
1000000 seconds. How many days is it? - Temperature conversion
The average human body temperature is 98.6 degrees Fahrenheit. What is the temperature in degrees Celcius? - Weeks
22 weeks is equal to how many days? - Holidays
Calculate how many hours take holidays, if it takes 5 weeks. - Hours
The lesson lasts 45 minutes. For the week, students have 18 lesson hours. How many are the actual hours? - Quarters
How many meters is a quarter of a kilometer? How many centimeters is a quarter of a meter, and how many cents is a quarter of the euro? - Nightingale
Nightingale sang for five seconds for 5 hours and 5 minutes. How many seconds were missing from singing 10 hours? - Milimeters
How many millimeters are 1/4 meters? - Percentage 5780
What percentage of 1m is 15cm? - One-tenth 3590
How many cm is one-tenth of 1 m?
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