Amplitude

The video tutorial explains the concept of amplitude in wave studies. It describes amplitude as the maximum displacement of a wave from its rest position, illustrated on a wave diagram as the height between the peak and midpoint. The tutorial also discusses the relationship between amplitude and energy, using sound waves as an example, where a larger amplitude results in a louder sound.

What is amplitude in the context of waves?

• The frequency of the wave

• The wavelength of the wave

• The maximum displacement from the rest position

• The speed of the wave

On a wave diagram, what does the amplitude represent?

• The length of one wave cycle

• The distance between two peaks

• The height between the peak and the midpoint

• The depth of the trough

How is amplitude related to the energy of a wave?

• Amplitude does not affect energy

• Higher amplitude means higher energy

• Higher amplitude means lower energy

• Amplitude is inversely proportional to energy

In sound waves, what effect does a larger amplitude have?

• It makes the sound quieter

• It has no effect on the sound

• It changes the pitch of the sound

• It makes the sound louder

Which of the following is true about amplitude in sound waves?

• It alters the direction of the sound

• It changes the frequency of the sound

• It determines the loudness of the sound

• It affects the speed of sound