Sound

Mark the true answer

• the world of sound accompanies us every day

• We are sorrounded just for sounds which we can hear

• We are sorrounded just for sounds which we cannot hear

• in our daily life, we decide what sounds we hear and what sounds we cannot hear

The sound is

• vibratory waves that are perceived through the ear

• the sensation produced in our sound body by vibrations of our ear

• a sensation in our brains produced through the ears which pick up vibrations of sound-producing bodies.

• the relationship we produce between a sound stimulus that we have had previously and recognizing it when we listen to it again

Sound approximately travels through air at

• 100 m/s

• 343 m/s

• 1500 m/s

• 5100m/s

Sound approximately travels through water at

• 100 m/s

• 343 m/s

• 1500 m/s

• 5100m/s

Sound approximately travels through steel at

• 100 m/s

• 343 m/s

• 1500 m/s

• 5100m/s

Choose the correct option

• we always perceive all the sounds that are around us

• we never perceive the sounds around us

• we consciously perceive some of the sounds around us

• there are sounds that go unnoticed around us

Whenever there is a sound

• someone is singing

• there is a vibrating object

  
  

• the vibration has previously ended

• they are all false

The speed of sound depends on

• from the ear of the person perceiving the sound

• the speed at which the object is struck so that it vibrates

• of the object that has produced the vibration

• of the medium through which the sound waves travel

Vibrational waves propagate faster when

• the lower the density of the medium

• the higher amplitude of the wave

• the lower amplitude of the wave

• the higher wave frequency

• the higher the density of the medium

All phenomena related to sound is carried out

• quantum physics

• acoustics

• 2nd ESO Music

• chemist