Ch 6 Paragraph 1

• Physics

Sound

Chapter 6 paragraph 1

The speed of sound

The speed of sound is a property.

See page 64 in your book!

Calculations with the speed of sound

s= v x t

Calculations with the speed of sound

s= v x t

v = velocity (speed) in m/s

t = time in seconds (s)

s = distance in meters (m)

Calculations with the speed of sound

s= v x t

v = velocity (speed) in m/s

t = time in seconds (s)

s = distance in meters (m)

v = s / t

t = s / v

Klaas sees a concrete pile being driven into the ground in the distance. This is done with the help of small explosions. Klaas hears every little explosion 1.3 s later than he sees it. Calculate the distance between the pile and Klaas.

Ron puts his ear on the rails and hears a train coming. The train is 2 kilometers from Ron. Calculate the time it takes for the sound to travel from the train to Ron's ear (through the steel).

A fishing boat uses sonar to determine were a lot of fish are. This sonar travels with the speed of sound in salt water. Calculate how deep the fish is in the water if it takes 3 seconds inbetween sending the sound and recieving it.

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