One pico stands for_________________?
Correct answer: B. 10 raised to power -12
- A. 10 raised to power -15
- B. 10 raised to power -12
- C. 10 raised to power -9
- D. 10 raised to power -6
Explanation
The SI prefix pico represents one trillionth, so pico = 10^-12. Thus 1 ps, for example, is 10^-12 s. Students may choose 10^-9 because nano is 10^-9, not pico.
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About Displacement and Velocity
Displacement is the directed change in position, while velocity is the rate of change of displacement and includes both magnitude and direction. The topic connects position-time and velocity-time graphs with average and instantaneous values, and distinguishes displacement from distance and velocity from speed.
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