Mass and Volume Mass Mass is the amount

Mass and Volume

Mass � Mass is the amount of matter an object contains. � What this means is that the more matter an object has, the more mass it has. � When � You something has a lot of mass, it is heavy. use a scale to measure the mass.

Mass vs Weight � Weight is the force of gravity pulling down on an object with mass. � Mass does not change when you go to a different planet or in space, but weight does. � If you are on a planet with less gravity, your weight will change, but not your mass.

Volume � Volume is a measure of how much space an object takes. � There are three ways to measure the volume depending on what you are measuring. � Regular solid, irregular solid and a liquid are three situations we may encounter.

Measuring Volume � When measuring the volume of a regular solid, you can simply measure the sides and multiply height x length x width to get the volume.

Measuring Volume � When measuring the volume of an irregular solid, you must use either an overflow can or a graduated cylinder. � The amount that the water rises in the graduated cylinder or the amount of water pushed out of the overflow can gives us the volume.

Measuring volume � To measure the volume of a liquid, you must use a graduated cylinder. This piece of lab is very precise and therefore can give you a good measurement, unlike a beaker which is far less precise.

Units � The units used to measure the mass are: ◦ Kg, g, mg � The units used to measure volume are: ◦ m. L, L ◦ m 3, cm 3 � These units are the standard units of measure.

Work � Now that we have an idea of mass and volume, grab your textbook and answer a few questions. . . � p. 189 # 2 -5