Complete the following statements by using milligram (mg), gram (g), or kilogram (kg): A penny has a mass of about 3 . . . .
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To determine the correct unit for the mass of a penny, we need to understand the relative sizes of milligram (mg), gram (g), and kilogram (kg).
- Milligram (mg) is the smallest unit of mass. It is equal to one-thousandth of a gram (1 mg = 0.001 g).
- Gram (g) is the standard unit of mass. It is equal to one-thousandth of a kilogram and is commonly used for everyday measurements.
- Kilogram (kg) is the largest unit of mass. It is equal to 1000 grams and is typically used for larger objects or in scientific contexts.
Given that a penny is relatively small, we can use milligrams or grams to measure its mass. However, it is more common to use grams for objects of this size.
Therefore, we can complete the statement as follows:
"A penny has a mass of about 3 grams."