Nature of Sound
TRUE/FALSE
Sound waves are waves which require a medium to travel.
TRUE
A ring of vibrations is called this.
What are sound waves?
What is termed as sound that is repeated because sound waves are reflected from a flat, smooth surfaces.
What is an echo?
Unpleasant and loud sounds is referred to as this
What is noise?
Which of the following is not true about sounds.
A. Sound travels in all directions from its source.
B. sound travel as a wave of vibrations
C. Sound travels in a vacuum
What is C. Sound travels in a vacuum.
Sound cannot travel in a vacuum, which has no matter.
What instrument can be used to display voltage signals?
What is an Oscilloscope?
TRUE/FALSE
Vibrating rings are created when energy is reflected.
What is False?
energy is transferred.
What happens when sound waves hit rough or soft surfaces?
What is they are absorbed?
Extremely loud, unwanted, unpleasant sounds being heard for long periods of time is termed as this
What is noise pollution?
Which of following are a way of reducing noise pollution.
A. Education about noise pollution.
B. Laws that allow you to play music at your free will.
C. Social awareness about noise pollution
What is A and C.
A. Education about noise pollution
C. Social awareness about noise pollution
Sounds are made as a result of these.
What are vibrations.
What is the 3 bones in the ear that amplifies vibrations known as.
What are Ossicles?
Why is it that everyone in a schoolyard can hear the school bell ring.
What is Sound waves travel in all directions?
Which of the following is not an effect of noise pollution.
A. disturbed sleep
B. blurred vision
C. increased heartbeat rate and blood pressure
What is blurred vision?
Car horns honking for long periods of time is a means of noise pollution.
What is True?
What term is a result of vibrations :the back and forth movement of an object
What is sound?
Which nerve in the ear carries sound waves to the brain
What is the auditory nerve?
Sound waves will travel through solids because:
What is solids can vibrate faster?
Unpleasant and unwanted sounds which we call noise are as a result of these.
What are irregular vibrations?
Anything around you that had adverse effects on you or your environment are called these.
What are Pollutants?
The speed of a sound vibration is known as this.
What is frequency?
Which is the correct path of sound through the ear.
A. Pinna- Ear Canal- Eardrum=Ossicles- Nerve- Cochlea
B.Pinna- Ear Canal-Cochlea- Eardrum-Ossicles- Nerve
C. Pinna- Ear Canal- Eardrum-Ossicles- Cochlea-Nerve
What is C. Pinna- Ear Canal- Eardrum-Ossicles- Cochlea-Nerve?
Loudness is measured in this
What are decibels?
What are the properties of sounds?
What are pitch, intensity and quality?
When you speak into a landline or telephone, the vibrations are into what type of signals
What are electrical signals?