Question

multiple choice question
a cycle is _.
o the distance between the amplitude and the equilibrium position
o a wave with an equal but opposite amplitude
o one complete vibration
o the time, in seconds, it takes one vibration to occur
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Explanation:

• The distance between the amplitude and the equilibrium position is just a part of the wave's description, not a cycle.
• A wave with an equal but opposite amplitude is about wave properties in terms of amplitude direction, not a cycle.
• One complete vibration is the definition of a cycle. For example, in a pendulum's motion, one back - and - forth movement (from one extreme, through the equilibrium, to the other extreme and back to the starting extreme) is a cycle.
• The time it takes one vibration to occur is the period, not the cycle itself.

Answer:

one complete vibration