Now, if you want to get even larger, you can go to a largeĪpe, like a human being, in particular, this one right over here. Times the mass of when they were very young, so Most fully grown humans are more than 10 times their mass when they were very, very young, or actually roughly 10 Interesting, a fully grown cat is more than 10 times A fully grown cat, that'sĪbout 3 to 5 kilograms, depending on how fully grown it is or I guess how big of a cat it is. But it would have a mass of roughly 1 kilogram, or 1000 grams. Some textbooks are huge, but the one that I'm showing here I didn't weigh or figure out And now, if you want to go to 1000 grams, you could think of something like a hard-cover textbook like this one. When I put a "g" here, that's just an abbreviation for "gram." So this is 1 gram, 5 grams, 20 grams. Ranges of, say, 1000 grams? Well, now we can start So what if we get even larger? What if we get into the Mouse is about that size, right over there. Thing having the same mass as maybe 10 or 15 of And this makes a rough amount of sense, you can imagine this Still not a fully grown cat, it'll have a mass ofĪbout 200 to 300 grams. So, a kitten after a couple of weeks, it's still a kitten now, it's You want to get even more massive, you can think of a kitten. A field mouse is equivalent to the mass of roughly 4 pencils, or 20 paperclips. Now, a little bit more massive, you could think of a field mouse. Roughly have the same mass, and their weight will be roughly the same. If you hold five paper clips on one side and a pencil Now, if you want to get a sense of things that are little bit more massive, a pencil is five times as Now, or how much the weight of it is pushing down on your Paper clip and kind of judge, feel how much it's Surface of the earth, well, you could just hold that Much something with a mass of 1 gram weighs on the But it gives you the sense of what would have a mass of 1 gram. Going to be exactly 1 gram it might be 1 1/2 grams, it might be small paper clips that are 1/2 gram. That means "roughly." Every paper clip isn't Squiggly thing here, because that right there, Get a sense of something that has a mass of one And that's exactly why I gotĪll of these pictures prepared. Of grams of masses are and what might have a mass of one kilogram or 10 kilograms or 100 kilograms. So instead of saying "2000 grams," I could say "2 kilograms." So with that out of the way, let's see if we can get a sense for what one gram or different numbers And all the kilogram is,Īnd you're going to see the prefix "kilo-" over and over again, in your, I guess your education careers, especially when you're Now, another thing that you will see in the context of mass and measuring mass, is the kilogram. When you take PhysicsĬlass, you'll learn that they are different concepts that are closely related to each other. The more something's mass is going to be, the more it's going to weigh, once again, assuming we're on the planet, etc., etc. And one way to gauge something's mass is to hold it if you can, and say, "Okay, how much does this weigh," because the more something weighs, the more its mass is going to be. Plus or minus a little bit, or even if we're a little bitįurther away from sea level, mass and weight, it's not crazy to hold them a little bit interchangeable. So you'll often hear people say, "How many grams does that thing weigh?" They really should be saying, "How many grams does that thing mass," but it's okay, because as longĪs we're staying on earth, roughly you know, at sea level, The center of the planet, they're going to have the same weight. Two things with the same mass, once again if I'm on the same planet, at the same distance from The center of that planet, roughly speaking, mass and weight will be strongly related to each other. Now, if you're on a given planet, and the same distance from And I said "related to weight," not the same thing as weight, because later on when you take Physics, you will learn that massĪnd weight are related, but that they're notĮxactly the same thing. It's how much stuff there is,Īnd it's related to weight. And so, just with those examples, you might get an intuitionįor what mass is. And say, "This is massive." This is massive. To some big boulder, some big heavy boulder, let And say, "Hey, this is not very massive." This is not massive. In everyday language, someone might look at a feather, let me see if I can draw a good feather. Now, what is mass? Well, you might have seen So let's talk about the unit of measurement called the "gram." And the gram is a unit of
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