1. What is the difference between mechanical and non-mechanical waves?

A. Mechanical waves move vertically while non-mechanical waves move horizontally.
B. Mechanical waves are always longitudinal, and non-mechanical waves are transverse.
C. Mechanical waves can interfere with each other while non-mechanical waves cannot.
D. Mechanical waves require a medium to travel through while non-mechanical waves do not.

2. What is the speed of a wave that has a 2-meter wavelength and a frequency of 5 Hertz?

A. 1.5 m/s
B. 3 m/s
C. 7 m/s
D. 10 m/s

A transverse wave moves with the disturbance perpendicular to the direction of propagation, while a longitudinal wave has the disturbance parallel to the propagation direction. For example, a wave on a guitar string is transverse, and the sound it produces is longitudinal.

Propagation Speed, Frequency, and Wavelength

Propagation speed is the speed of the wave through a medium, and frequency is the number of waves passing a point per unit time. Wavelength is directly proportional to wave speed and inversely proportional to frequency.

Producing Waves on a Stretched Spring

To create transverse waves on a stretched spring, you can move one end up and down horizontally. Longitudinal waves on the spring can be produced by compressing and releasing the spring along its length.

Learn more about Wave Motion here:

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