Speed of Sound in Different Materials

The video explains how sound travels at different speeds through various materials. Sound moves at over 700 mph in air and 3,400 mph in water, which is four times faster due to the closer proximity of water molecules. The video also discusses how sound travels even faster in metals, where molecules are extremely close together. The speed of sound is influenced by the distance between molecules and their ability to transmit vibrations.

How fast does sound travel through the air?

• 1,100 mph

• 900 mph

• 700 mph

• 500 mph

What is the speed of sound in water?

• 3,400 mph

• 2,400 mph

• 1,700 mph

• 4,000 mph

Why does sound travel faster in water than in air?

• Water is denser than air

• Water molecules are farther apart

• Air is a better conductor of sound

• Sound waves are slower in water

What factor affects the speed of sound in a material?

• Shape of the material

• Temperature of the material

• Distance between molecules

• Color of the material

How do molecule vibrations influence sound speed?

• They slow down sound

• They have no effect

• They speed up sound

• They change sound direction

In which material does sound travel the fastest?

• Wood

• Air

• Water

• Metal

What happens to sound speed when molecules are very close together?

• Sound speed increases

• Sound speed fluctuates

• Sound speed remains the same

• Sound speed decreases