Final answer:
A metric consists of a set of units of measurement for length, mass, time, etc. The four conditions to follow when using the metric system are: use the appropriate unit of measurement, use the correct prefixes, perform conversions using the appropriate conversion factors, and check the answer for reasonableness.
Step-by-step explanation:
A metric consists of a set of units of measurement for length, mass, time, etc. The metric system is a decimal-based system that is widely used around the world. It is based on the International System of Units (SI) and provides a standardized way to measure and compare quantities. The metric system is easy to use and understand because it uses prefixes to indicate different magnitudes. For example, kilo- means 1000 times and milli- means 1/1000. The four conditions to follow when using the metric system are:
- Use the appropriate unit of measurement for the quantity being measured.
- Use the correct prefixes to indicate the magnitude of the quantity.
- Perform conversions between units using the appropriate conversion factors.
- Check the answer to ensure it is reasonable and makes sense in the given context.