Which of the following is closest to a yard:
Correct answer: C. 1 m
- A. 0.01 m
- B. 0.1 m
- C. 1 m
- D. 100 m
Explanation
The correct answer is 1 meter because a yard is approximately 0.9144 meters, making 1 meter the closest option. A yard is a unit of length used in the imperial system, and when converted to the metric system, it measures just under one meter. The other options are either too small (0.01 m and 0.1 m) or too large (100 m) to be considered close to a yard.
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Physical quantities combine a numerical value with a unit, and are expressed using SI base units or derived units such as newtons, joules and pascals. The topic covers prefixes, unit conversion, dimensional analysis, significant figures and measurement uncertainty, while distinguishing scalar quantities from vectors where direction matters.
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