If you are able to use fractions - or smaller units - there is never a need to do so.
A metres, for an approximate measure, a centimetre for a more accurate measure.
The meter.
A kilometre. A megametre may be more appropriate but it is not a unit that is used much.
To determine the length of the desktop in inches, you would need to measure it directly with a ruler or tape measure. If you have specific dimensions or a description of the desktop, please provide that information for a more accurate answer.
The answer depends on what you wish to measure: its length, thickness, mass, elasticity. There are many more characteristics that you may wish to measure and in most cases a different unit is required.
A metres, for an approximate measure, a centimetre for a more accurate measure.
No. Balances measure weight. To measure a stick, you would use a ruler or similar measure.
The meter.
A kilometre. A megametre may be more appropriate but it is not a unit that is used much.
To determine the length of the desktop in inches, you would need to measure it directly with a ruler or tape measure. If you have specific dimensions or a description of the desktop, please provide that information for a more accurate answer.
Grams are a measure of weight, centimeters are a measure of length. They are not comparable.
what unit would you the length of a shoe? mm,cm,dm,m, or km.
The answer depends on what you wish to measure: its length, thickness, mass, elasticity. There are many more characteristics that you may wish to measure and in most cases a different unit is required.
One could use either, but it would make more sense to use meters.
To measure a sharpener in the metric system, you would typically use centimeters (cm) for its length, width, and height. If you need to measure smaller dimensions, millimeters (mm) might be more appropriate. For weight, grams (g) would be used.
The best unit to measure the length of a science table would typically be meters or centimeters, depending on the table's size. For larger tables, meters provide a convenient measurement, while centimeters offer more precision for smaller dimensions. If the table length is in the range of typical household furniture, centimeters would be the most practical choice. For example, a standard science table might measure around 120 cm in length.
To measure the length of a bridge, you would typically use meters or kilometers, depending on the bridge's size. For longer bridges, kilometers may be more practical, while meters provide a more precise measurement for shorter spans. In some countries, feet or miles might also be used.