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# metric system

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Anything that has the prefix milli- is 1,th the size of its base unit. This one is a bit more difficult to remember, but it is definitely the prefix you would use the most in a chemistry class. Next on our list of important metric quantities is mass. This is one of the most important measurements a chemist makes. Mass is how much of something you have, or the amount of matter in an object. Mass is measured using a balance , and the basic unit for mass is the gram.

To give you an idea of the relative size of a gram, the mass of a penny is about 2. Sometimes people get confused with the difference between mass and weight. They end up being quite similar because everything you and I do takes place on Earth. But, mass and weight differ because mass is how much of something you have and weight is the force of gravity on an object.

Take a look at this example. Both of these blocks have the same mass one kilogram, or 1, grams , but one is on Earth and the other is on the moon.

Because the Earth has more mass than the moon, it is going to pull the block with more force. This is why things on Earth have more weight than things on the moon, even though both have the same mass.

Get access risk-free for 30 days, just create an account. If mass is a measure of how much you have, then volume is the measure of how much space it takes up. The basic unit for volume is the liter. Even in America, the liter is a common volume measurement. For example, we measure soda in 2-L increments. Often, we will be dealing with much smaller volumes, so the milliliter or 1,th of a liter will be used. The liter is a three-dimensional unit. One interesting fact is that one milliliter is the exact same size as a cubic centimeter, so you may see these units used interchangeably.

Our next common unit is the combination of the previous two units mass and volume. This unit is called density and it is how tightly packed the particles of an object are. Solids have very high densities because their particles are super-close to each other. Gases have very low densities because their particles are very spread apart. Things that are less dense float on things that are more dense.

Density can be calculated by taking the mass of an object divided by its volume. The units for density remain the same as the units you used for mass over the units you used for volume. For example, I may measure the mass of a rock as 8. This rock also has a volume of 3. If I take 8. This means that the density of the rock is 2. So if you have mL of water, it will have a mass of g. Our final unit in this lesson is the metric unit for temperature: This is the one you may be the most unfamiliar with, but this little rhyme helped me to better understand and remember temperature measurements in Celsius:.

This also helps me remember that the freezing point of water is 0 degrees Celsius and the boiling point of water is degrees Celsius. How easy is that to remember?

Later on, you may be required to use a different unit for measuring temperature: Zero Kelvins is the lowest possible temperature ever! Zero Kelvins is about degrees Celsius and each Kelvin is the same size as a degree Celsius. So, zero degrees Celsius is equal to about Kelvins. As we move through the course, we are going to encounter some other, more specialized units of measurement. But for now, make yourself more familiar with the metric units.

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By creating an account, you agree to Study. Explore over 4, video courses. Find a degree that fits your goals. Units and Conversion Just like you and your friend communicate using the same language, scientists all over the world need to use the same language when reporting the measurements they make. This language is called the metric system. In this lesson we will cover the metric units for length, mass, volume, density and temperature, and also discuss how to convert among them.

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You must create an account to continue watching. Register to view this lesson Are you a student or a teacher? I am a student I am a teacher. What teachers are saying about Study. Unit Conversion and Dimensional Analysis. Are you still watching? Your next lesson will play in 10 seconds. Add to Add to Add to. Want to watch this again later? How to Convert Units in the Metric System. Significant Figures and Scientific Notation.

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Physical and Chemical Properties. The Environment, Levels of Ecology and Ecosystems. Holt McDougal Modern Chemistry: Significant Chemists Study Guide. Kristin Born Kristin has an M. Just like you and your friend communicate using the same language, scientists all over the world need to use the same language when reporting the measurements they make.

Metric Measurement What do all of these words have in common: The units of measure in the English and metric systems Most Americans are taught the English or standard system of measurement, but never get a really good dose of the metric system.

The balance measures mass in grams. Mass Next on our list of important metric quantities is mass. Things weigh more on Earth than the moon because the former has more mass.

Try it risk-free No obligation, cancel anytime. Want to learn more? Select a subject to preview related courses: Volume If mass is a measure of how much you have, then volume is the measure of how much space it takes up. Density Our next common unit is the combination of the previous two units mass and volume. Bubbles rise to the top because they are less dense than liquids. Temperature Our final unit in this lesson is the metric unit for temperature: This is the one you may be the most unfamiliar with, but this little rhyme helped me to better understand and remember temperature measurements in Celsius: Lesson Summary As we move through the course, we are going to encounter some other, more specialized units of measurement.

We can also combine the meter, kilogram and second to make new Units of Measurement! Here are a few common units that are based on the meter , kilogram and second:. Area is length by length, so the basic unit of area is a square that is 1 meter on each side. Volume is length by length by length, so the basic unit of volume is a cube that is 1 meter on each side.

Liter is abbreviated L some people use lowercase l , but that looks too much like 1. And yes, "per second" is used twice! Force is usually measured in the Unit of Newtons, an important measurement in Physics and Engineering. So force is actually based on the meter , kilogram and second. The Metric System had its beginnings back in by a mathematician called Gabriel Mouton.

So we should really call it " SI ", but mostly people just call it "Metric". Hide Ads About Ads. It has three main units: For large values each one a thousand times bigger say: Speed Speed is how far something moves over a period of time So it can be measured in meters per second It means:

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The international system of weights and measures known as the metric system was adopted in France in and is now used around the world. The metric system made calculations and comparisons much easier than they had been with earlier systems of .

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The metric system is an international system of measuring length, mass, and capacity. Units are standardized and based upon the decimal system. Homework routine quotes: Help with metric system homework. Writing an essay on agounimezain.tky guna get my first a on a paper this semester!

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The metric system is an international decimal system of weights and measures. It was adopted in France in and is now used officially in almost all countries. The system is based on the meter for length and the kilogram for mass. The basic unit of the metric system is the meter. A measure of. Movie review assignment book - homework help metric system September 11, Uncategorized 0 I hate groupwork, suck at long essays under pressure, and am indifferent towards the food industry. what to do.