Sound and Noise

What do we need to produce a sound?

• We need an emitter and a receiver to produce a sound.

• We need a transmission channel and a receiver to produce a sound.

• We need an emitter, a transmission channel and a receiver to produce a sound.

• We need an emitter and a transmission channel to produce a sound.

Which channels does the sound use to travel?

• Gas and Liquid

• Gas, liquid and solid.

• Water and liquid.

• Gas, water and liquid.

The sound travels faster in liquid channels.

• TRUE

• FALSE

Sound can´t travel in a vacuum

• TRUE

• FALSE

ONDA DEL SONIDO EN INGLÉS SE DICE....

• SOUND WAVE

• WAVE

• ONDA

• WATE

What is noise?

 

• Noise is an unpleasant sound

• Noise is a pleasant sound.

Sound is unpleasant, and the wave of the sound is irregular.

• TRUE

• FALSE

What is Noise pollution?

• It is a bit of sound that can cause health problems for people and wildlife.

• It is excessive sound that can cause health problems for people and wildlife.

• It is excessive sound that can't cause health problems for people and wildlife.

Soundscape is the sound or group of sounds of an environment.

• TRUE

• FALSE

What is silence?

• It is an unpleasant sound.

• It is a pleasant sound.

• It is the absence of sound (no sound).

• It is a low sound.