Long Test 2 Reviewer Part 2

Frequency of sound is expressed on how fast a vibration is. If the vibration is too slow, what happens to the sound?

• It has weaker volume

• It has weaker resonance

• It has lower pitch

• It has lower amplitude

In your Ear, the part that is responsible for processing or interpreting the sounds collected from the environment is

• Pinna

• Ear Canal

• Eardrums

• Cochlea

In your Ear, the part that is responsible for collecting the sound from the environment is

• Pinna

• Ear Canal

• Eardrums

• Cochlea

In your Ear, the part that is responsible for converting the sound into vibrations which allows the other three small bones to vibrate is

• Pinna

• Ear Canal

• Eardrums

• Cochlea

When the amplitude of the sound is very narrow or almost near to the rest position, what is the impact of that to the sound?

• Pitch is high

• Loudness is low

• Echo is high

• none of the above

The heat of the sun reaches the Earth through

• convection

• radiation

• conduction

• vibration

Which of the following does NOT show or illustrate convection to transfer heat

• Air conditioner

• Heater

• Volcano

• Burning coal

Which of the following is NOT an example of Conduction?

• Heating needle

• touching a hot stove

• putting a fork on a meat while cooking

• None of the above

Which heat transfer method is the fastest?

• Conduction

• Convection

• Radiation

• Vibration

While standing, Oscar noticed that the sound of the siren is getting louder and pitch is getting higher as the ambulance comes nearer to his position. When the ambulance passed by, the sound started to decrease its loudness and the pitch is getting lower. This incident is known as

• Daffer Impact

• Doffler impact

• Doppler effect

• Dapper effect