THE MEDIUM OF SOUND PROPAGATION

Which medium cannot propagrate sound?

• Space

• Concrete pipe

• Seawater

• The atmosphere surrounding the earth

If you hear a thunder 3 seconds after you see it, what is the distance from where you stand to where the lightning strikes?

• 1km

• 1.5km

• 2km

• Can't calculate

What following mediums can transmit sound?

• 
• 
• 
• 
• 

Which of the following conclusions is correct?

• The speed of sound is faster in a gas than in a liquid and less than in a solid.

• The speed of sound is faster in liquids than in gases and less in solids.

• The speed of sound is faster in solids than in liquids and less than in gases.

• The speed of sound is faster in a gas than in a liquid and less than in a solid

Sound travels through air, which of the following quantities remains constant?

• The pitch of the sound

• Loudness of sound

• Amplitude of sound

• The pitch and loudness of sound

Thunder and lightning are produced almost at the same time but lightning is often seen before listening thunder. Why?

• Light travels much faster in air than sound

• Sound travels much faster in air than light

• Eyes can see everythings far away

• All are correct

Why can the doctor hear the fetal heart?

• Based on feeling

• Fetal heart transmits sound through solids to the doctor’s ears

• Fetal heart transmits sound through air to the doctor’s ears

Sound travels FASTEST through which of these materials?

• Air
• Empty space
• Metal
• Water

Which object does sound NOT travel through the fastest?

• 
• 
• 
• 

Sound travels the FASTEST through _____________, SLOWER through ______________ and SLOWEST through _________________.

• liquids, solids, gases

• solids, gases, liquids

• solids, liquids, gases

• gases, liquids, solids