After learning volume and volume, some students mistakenly think that volume is volume. In fact, volume and body

Products are closely related, that is, the calculation method is the same (all calculated by volume formula)

Calculation). But volume and volume are two different concepts, and there are three differences:

1 has different meanings. Volume refers to the size of the space occupied by an object. Volume refers to the container (cup, box

The size (internal volume) of objects that children, oil drums, etc can hold.

2. The measurement methods are different. When calculating the volume, it is measured from the outside of the object. For example: glass for calculation.

The volume of a rectangular goldfish bowl is measured from the outside.

Length, width and height. If you want to calculate the volume of this rectangular goldfish bowl

The required data must be measured from the inside of the goldfish bowl, because the glass used to make the goldfish bowl is certain.

Thick.

3. The units of measurement are different. To calculate the volume of an object, unit of volume cubic meters and cubic minutes must be used.

Meters, cubic centimeters "and so on. Volume calculation generally uses unit of volume "liters and milliliters"; But there are more calculations.

When using the volume of a large object, the unit of volume "cubic meter" is also used for general purposes, because liters and milliliters are limited to.

Metering liquids, such as bottled gasoline and small bottles of medicine.