Phase Constant

The video tutorial explains harmonic motion, focusing on the role of the phase constant, Phi. It describes how Phi shifts the position of sine or cosine waves along the horizontal axis without altering their shape. The tutorial uses graphical examples to illustrate phase shifts and clarifies the various names and roles of Phi in wave motion.

What is the role of the phase constant in harmonic motion?

• It shifts the wave along the horizontal axis.

• It alters the frequency of the wave.

• It modifies the shape of the wave.

• It changes the amplitude of the wave.

In the example of cosine graphs, what does a phase constant of π/2 radians do?

• Decreases the frequency by π/2 radians.

• Increases the amplitude by π/2 radians.

• Shifts the graph to the left by π/2 radians.

• Shifts the graph to the right by π/2 radians.

Which of the following is NOT a name for the phase constant?

• Phase shift

• Phase delay

• Phase angle

• Phase amplitude

What is the most important function of the phase constant?

• To change the wave's frequency

• To shift the wave along the horizontal axis

• To alter the wave's amplitude

• To modify the wave's shape

Does the phase constant change the shape of the wave?

• No, it only changes the amplitude.

• No, it only shifts the wave.

• Yes, it changes the wave's shape.

• Yes, it alters both shape and frequency.