Sound Quiz: Trivia Questions! MCQ

1. Which of these causes sound?

Something burning

Something vibrating

Charged particles

Objects changing shape

Vibrations are responsible for producing sound. When an object vibrates, it creates waves of pressure in the surrounding medium, such as air, which our ears perceive as sound. Therefore, something vibrating is the cause of sound.

Explanation

Vibrations are responsible for producing sound. When an object vibrates, it creates waves of pressure in the surrounding medium, such as air, which our ears perceive as sound. Therefore, something vibrating is the cause of sound.

2. A string telephone is made by stretching a piece of strings between two cups. how does the string telephone work?

Sounds are changed to electricity.

Sounds make the string vibrate.

Sounds travel through the air.

Sounds travel through the string digitally.

The string telephone works by transmitting sounds through vibrations. When someone speaks into one cup, the sound waves travel through the air and reach the string. The string then vibrates, carrying the sound waves to the other cup, where they are heard by the person on the other end. This method of transmitting sound through vibrations is the basic principle behind how a string telephone works.

Explanation

The string telephone works by transmitting sounds through vibrations. When someone speaks into one cup, the sound waves travel through the air and reach the string. The string then vibrates, carrying the sound waves to the other cup, where they are heard by the person on the other end. This method of transmitting sound through vibrations is the basic principle behind how a string telephone works.

3. Special dog whistles make sounds that people cannot hear, no matter how hard you blow the whistle. Why can't people hear these whistles?

The pitch is too high.

The sound is too long.

The volume is too low.

The whistle is too small.

Special dog whistles make sounds that people cannot hear because the pitch is too high. Human hearing has a limited range, typically between 20 Hz and 20,000 Hz. Dog whistles are designed to produce frequencies above this range, allowing them to be audible to dogs but not to humans. This high-pitched sound is outside the human hearing threshold, making it impossible for people to perceive the whistle's sound, regardless of how hard it is blown or any other factors such as volume or size.

Explanation

Special dog whistles make sounds that people cannot hear because the pitch is too high. Human hearing has a limited range, typically between 20 Hz and 20,000 Hz. Dog whistles are designed to produce frequencies above this range, allowing them to be audible to dogs but not to humans. This high-pitched sound is outside the human hearing threshold, making it impossible for people to perceive the whistle's sound, regardless of how hard it is blown or any other factors such as volume or size.

4. Sam was swimming underwater when she thought she heard a porpoise squeak. What can be said about Sam's observation?

She must have imagined it, because sound cannot travel in water.

The sound would be louder if she raised her head above water.

The sound traveled through the sand on the sea floor.

Water particles vibrated against her eardrum, which caused her to hear the porpoise.

Sam's observation can be explained by the fact that water particles vibrated against her eardrum, which caused her to hear the porpoise. This is because sound can travel through water and reach our ears, contrary to the statement that sound cannot travel in water.

Explanation

Sam's observation can be explained by the fact that water particles vibrated against her eardrum, which caused her to hear the porpoise. This is because sound can travel through water and reach our ears, contrary to the statement that sound cannot travel in water.

5. You stretch a rubber band and pull on one side. The rubber band makes a sound. You stretch the same rubber band even more and pull on it again. It makes a different sound. What property of sound changes?

Direction

Pitch

Reflection

Volume

When you stretch the rubber band even more and pull on it again, the pitch of the sound it produces changes. Pitch is a property of sound that refers to how high or low a sound is perceived. So, by stretching the rubber band further, the tension in the band increases, causing it to vibrate at a higher frequency and produce a higher pitch sound.

Explanation

When you stretch the rubber band even more and pull on it again, the pitch of the sound it produces changes. Pitch is a property of sound that refers to how high or low a sound is perceived. So, by stretching the rubber band further, the tension in the band increases, causing it to vibrate at a higher frequency and produce a higher pitch sound.

6. What must change in order for the pitch of a sound to change?

Frequency

Amplitude

Reflection

Absorption

The pitch of a sound is determined by its frequency, which refers to the number of vibrations or cycles per second. When the frequency of a sound wave changes, the pitch of the sound also changes. Therefore, in order for the pitch of a sound to change, the frequency of the sound wave must change.

Explanation

The pitch of a sound is determined by its frequency, which refers to the number of vibrations or cycles per second. When the frequency of a sound wave changes, the pitch of the sound also changes. Therefore, in order for the pitch of a sound to change, the frequency of the sound wave must change.

7. Through which will sound travel fastest?

Air

Empty space

Water

Wood

Sound travels fastest through solids because the particles in solids are closely packed together, allowing for faster transmission of sound waves. In the case of wood, the molecules are tightly bound, enabling sound to travel quickly through its structure.

Explanation

Sound travels fastest through solids because the particles in solids are closely packed together, allowing for faster transmission of sound waves. In the case of wood, the molecules are tightly bound, enabling sound to travel quickly through its structure.

8. Which term means how loud a sound it?

Direction

Frequency

Pitch

Volume

Volume is the term that refers to how loud a sound is. It is a measure of the intensity or amplitude of a sound wave. The greater the amplitude of a sound wave, the louder the sound is perceived to be. Therefore, volume is the correct term to describe the loudness of a sound.

Explanation

Volume is the term that refers to how loud a sound is. It is a measure of the intensity or amplitude of a sound wave. The greater the amplitude of a sound wave, the louder the sound is perceived to be. Therefore, volume is the correct term to describe the loudness of a sound.