Vibraciones y ondas: video de evaluación

The video tutorial covers the concept of back-and-forth movement, the necessity of initiating vibration, how a vibrating guitar string emits sound, the detection of sound waves, and the effects of seismic probes.

What is the primary function of back-and-forth movement in the context of vibrations?

• To stop a vibration

• To initiate a vibration

• To create a visual effect

• To amplify sound

Why is vibration necessary in the context of sound production?

• It stops sound from spreading

• It is required to initiate sound waves

• It reduces noise

• It helps in visualizing sound

What happens when a guitar string vibrates?

• It emits a sound

• It changes color

• It becomes silent

• It breaks

How are sound waves detected?

• By measuring temperature

• By the human ear or instruments

• By using a thermometer

• Through visual observation

What can seismic probes cause?

• A visual illusion

• A vibration

• A sound wave

• A change in weather