RS U2C1A7Speed of Waves

Does the speed of waves depend on amplitude, frequency or something else?

link to movie

Question 1 Does the larger amplitude

transverse wave seem to move much faster, much slower, or at about the same as the speed as the smaller amplitude transverse wave?

Question 2Does the larger amplitude

compression wave seem to

move much faster, much slower,

or at about the same speed

as the smaller amplitude

compression wave?

Watch computer simulation of sound waves with the same frequency, but different amplitudes.

link to movie

Question 3 Does the larger amplitude sound wave seem to move

much faster, much slower, or at about the same speed as the smaller amplitude sound wave?

Question 4Based on the three examples shown, does the speed of either a transverse or compression wave seem to depend on its amplitude?

No, the speed of a transverse or compression wave does not seem to depend on its amplitude.

Does the speed of waves depend on amplitude, frequency or something else?

link to movie

Question 5 Based on the three movie segments, do higher

frequency waves (either transverse or compression) seem to move much faster, much slower, or at about the same speed as lower frequency waves?

Higher frequency waves (either transverse or compression) seem to move at about the same speedabout the same speed as lower frequency waves.

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Question 6 Does the speed of the sound waves

seem to depend on the medium (material) through which they move?

Yes, the speed of the sound waves seems to depend on the medium (material) through which they move.

Question 7 Is the speed of sound in steel greater than, less than or the same as it is in air?

Question 7

The speed of sound in steel is greater than it is in air.

Which path can you run the fastest on?

Why does sound travel fastest in a solid?

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Read pages 146 - 148 and complete #’s 8, 9 & 10 as well as the key question.

You have 10 minutes!You have 10 minutes!

Round your answers to Round your answers to the thousandths place, the thousandths place,

ex: 0.12ex: 0.1233

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Question 8What is the speed of the

transverse pulse? Show your Show your work.work.

Speed

Question 9 How long does it take for the sound of

the hammer strike to travel from one end of the steel beam to the other? Show your work.

Question 10 How long does it take for the sound of the

hammer strike to travel the same distance through air (assume the temperature is 20°C). Show your work.

What have we learned: What property or properties of a

wave determine its speed? The speed of a wave depends

upon the medium it moves in (fastest in a solid and slowest in (fastest in a solid and slowest in a gas).a gas). The speed of a wave does NOT depend upon the wave’s frequency or amplitude.

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