The speed is measured in which unit?

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Study for the 40Hr Laser Hair Removal Apprentice Test. Learn with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

The speed is measured in which unit?

Explanation:
Speed means how far something moves in a given amount of time. The standard unit for speed is meters per second (m/s) in the SI system. Hz (hertz) measures frequency—cycles per second—not how fast something travels. You might see speeds given in kilometers per hour (km/h) for everyday use, or even extremely large speeds in light-years per second in astronomy, but the fundamental idea is speed = distance ÷ time, so Hz isn’t appropriate for expressing speed. For example, moving 60 meters in 3 seconds gives a speed of 20 m/s.

Speed means how far something moves in a given amount of time. The standard unit for speed is meters per second (m/s) in the SI system. Hz (hertz) measures frequency—cycles per second—not how fast something travels. You might see speeds given in kilometers per hour (km/h) for everyday use, or even extremely large speeds in light-years per second in astronomy, but the fundamental idea is speed = distance ÷ time, so Hz isn’t appropriate for expressing speed. For example, moving 60 meters in 3 seconds gives a speed of 20 m/s.

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