Sound: Speed of Sound

The video explains that thunder and lightning occur simultaneously, but light is seen before thunder is heard due to the faster speed of light compared to sound. It provides a method to estimate the distance of a storm by calculating the time delay between seeing lightning and hearing thunder, with a 3-second delay per kilometer or a 5-second delay per mile. Light travels over 800,000 times faster than sound.

Why do we see lightning before we hear thunder?

• Because thunder is quieter

• Because lightning is brighter

• Because sound travels faster than light

• Because light travels faster than sound

How much faster does light travel compared to sound?

• 1,000 times faster

• 800,000 times faster

• 10,000 times faster

• 100 times faster

What is the delay in seconds for each kilometer between seeing lightning and hearing thunder?

• 1 second

• 10 seconds

• 5 seconds

• 3 seconds

What is the delay in seconds for each mile between seeing lightning and hearing thunder?

• 7 seconds

• 2 seconds

• 3 seconds

• 5 seconds

What can be estimated by calculating the time between seeing lightning and hearing thunder?

• The speed of sound

• The speed of light

• The intensity of the storm

• The distance of a storm