What is how to find amplitude?

Amplitude

Amplitude is a measure of the maximum displacement of a wave from its equilibrium position. It essentially quantifies the "height" or "strength" of the wave. The specific method for finding the amplitude depends on the type of wave and the information you have available.

• For a Graph:

  • Identify the equilibrium position (the horizontal line the wave oscillates around).
  • Measure the vertical distance from the equilibrium position to the peak or trough of the wave. This distance is the amplitude.

• For a Sinusoidal Function (e.g., y = A sin(Bx + C) + D):

  • The amplitude is represented by the absolute value of the coefficient A. So, amplitude = |A|.
  • A affects the stretching or compression of the function.

• For Physical Systems (e.g., a Pendulum):

  • Amplitude refers to the maximum angular displacement from the equilibrium position.
  • You would need to measure the maximum angle the pendulum swings away from its resting point.

• Finding Amplitude in Sound Waves *Amplitude can also be the amount of change in pressure caused by the sound wave. Here are some important subjects about the amplitude: Maximum Displacement Peak Function Change in Pressure