Scelta multipla
In the SI system, what unit is used to measure frequency?
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1. Intro to Physics Units
Introduction to Units
Scelta multipla
In introductory physics, which units are used to measure both speed and velocity?
A
(newtons)
B
(meters per second squared)
C
(meters per second)
D
(joules)
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Understand that speed and velocity both describe how fast an object is moving, but velocity also includes direction, making it a vector quantity.
Recall that speed and velocity are measured as the rate of change of distance or displacement with respect to time.
Identify the standard SI unit for measuring speed and velocity, which is distance divided by time.
Express this unit mathematically as \(m\/s\), where \(m\) stands for meters (distance) and \(s\) stands for seconds (time).
Note that other units like newtons (\(N\)), meters per second squared (\(m\/s^{2}\)), and joules (\(J\)) measure different physical quantities such as force, acceleration, and energy, respectively.
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