The same reason metres are used to measure houses instead of miles. One is of the right size at that scale, the other is so large all measurements would be in very small decimals.
The reason that you can be more precise while measuring in millimeters is because millimeters are smaller than centimeters, therefore you can make more specific measurements. +++ 1m = 100cm and 1cm = 10mm. The cm is not a 'preferred unit' in SI scales.
An inch is much bigger then a millimeter. There are 2.54 centimeters in an inch, so there are 25.4 millimeters in an inch.
To convert millimeters to centimeters, you can use the fact that 1 centimeter equals 10 millimeters. Therefore, 5 millimeters is equal to 0.5 centimeters. Since 8 centimeters is much larger than 0.5 centimeters, there are no 8 cm in 5 mm; rather, 5 mm is only half a centimeter.
Measuring a penny in millimeters is preferable because it provides a more precise and suitable scale for its small size. A penny has a diameter of about 19 millimeters, which makes millimeters a more practical unit for accurately conveying its dimensions without decimal points or fractions that would be necessary in centimeters or meters. This precision is particularly important in contexts like manufacturing or quality control, where small variations can be significant.
The water in a wading pool is typically measured in liters rather than millimeters. Millimeters refer to a unit of length, while liters measure volume. A wading pool usually holds several hundred to a few thousand liters of water, depending on its size. Therefore, liters is the appropriate unit for this context.
The reason that you can be more precise while measuring in millimeters is because millimeters are smaller than centimeters, therefore you can make more specific measurements. +++ 1m = 100cm and 1cm = 10mm. The cm is not a 'preferred unit' in SI scales.
An inch is much bigger then a millimeter. There are 2.54 centimeters in an inch, so there are 25.4 millimeters in an inch.
When you need to observe a live specimen
The first microscope was not created by brothers but rather by Dutch spectacle maker, Zacharias Janssen, and his father, Hans. They are credited with inventing the compound microscope around 1590.
Since a toothpaste tube is a rather small object, it would be advisable to measure it in millimeters. Liters being to big of a measurement for it.
Yes, you can see it if you use a microscope. As to why, it is rather large and is surrounded by a membrane.
a transmission electron microscope uses electron beams rather than light.
Yes Ignoring things like significant figures, yes, 800 mm is 0.8 - or rather - 0.800 meters.
It rather depends on how deeply you wish to view the object. An optical microscope is adequate for most studies. But, with an electron microscope, not only could you view a flea in detail, but also the minute hairs on the flea's legs
Yes, in a suspension, the particles are small enough to remain dispersed in the solvent rather than settling out. These particles can be seen through a microscope because they are larger than the molecules in the solvent.
To describe a property without using measurements is to make a qualitative description. This type of description focuses on the characteristics, features, and qualities of the property rather than its exact numerical measurements.
Scientists would use an electron microscope when a light microscope isn't strong enough. Electron microscopes use a beam of electrons rather than light to achieve much higher magnification and resolution, allowing for the visualization of smaller details in samples.