Kilograms
Celsius degrees
To measure a soccer field in the metric system, you would use a metric measuring tape or a measuring wheel. The units used could be meters or centimeters. In the English system, you would use a tape measure or a measuring wheel calibrated in feet or yards. The units used would be feet or yards.
Meters should be used to measure the length of a tennis court in metric units.
There is only one metric system. The relevant units, within that system would be millimetres.
The is only one Metric System. That is the one you would use. The units you use to measure mass is the kilogram (Kg).
What metric unit would you use to measure a computer keyboard
A ruler
Litres
It would probably be miles.
Celsius degrees
To measure a soccer field in the metric system, you would use a metric measuring tape or a measuring wheel. The units used could be meters or centimeters. In the English system, you would use a tape measure or a measuring wheel calibrated in feet or yards. The units used would be feet or yards.
Meters
Meters should be used to measure the length of a tennis court in metric units.
Yards if you work in imperial units or metres if you work in metric units
Mass and weight are two different things: you cannot measure the mass of your weight. That is like talking about the temperature of your height - it makes no sense.
There is only one metric system. The relevant units, within that system would be millimetres.
The is only one Metric System. That is the one you would use. The units you use to measure mass is the kilogram (Kg).