Multiple Choice
Which statement is accurate about or ?
1. Intro to Physics Units
Introduction to Units
Multiple Choice
Which of the following best describes a nanosecond?
A
A nanosecond is seconds.
B
A nanosecond is seconds.
C
A nanosecond is seconds.
D
A nanosecond is seconds.
Verified step by step guidance1
Recall the definition of a nanosecond: it is a unit of time used to measure very short intervals.
Understand the metric prefixes: 'nano' means 10 to the power of -9, which is one billionth of a unit.
Express a nanosecond in seconds using scientific notation: since 'nano' corresponds to 10^{-9}, a nanosecond equals \(1 \times 10^{-9}\) seconds.
Compare this with other options: \$10^{-12}\( seconds is a picosecond, \)10^{-6}\( seconds is a microsecond, and \)10^{-3}$ seconds is a millisecond.
Conclude that the correct description of a nanosecond is \(1 \times 10^{-9}\) seconds.
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