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aboundingdriprockΠολεοδομικά Έργα

29 Νοε 2013 (πριν από 3 χρόνια και 11 μήνες)

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Question 1


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Question 3


Question 4


Question 5


Question 6


Question 7


Question 8

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Question 1


Question 2


Question 3


Question 4


Question 5


Question 6


Question 7


Question 8

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Question 1


Question 2


Question 3


Question 4


Question 5


Question 6


Question 7


Question 8

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Question 1


Question 2


Question 3


Question 4


Question 5


Question 6


Question 7


Question 8

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Question 1

What do the small black dots represent?

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Question 2

Identify the areas of compression.

Identify the areas of rarefaction.

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Question 3

Identify which wave has a longer
wavelength and which has a
higher frequency.

A

B

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Question 4

Identify the areas of low pressure.

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Question 5

Use a meterstick to measure and report
the wavelength.

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Question 6

Use a meterstick to measure and report
the amplitude.

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Question 7

A

B

Which has the lower
frequency? Which has
the higher amplitude?

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Question 8

Describe the only
way to change
this pendulums
period.

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Question 1

What is the source of all wave
motion?

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Question 2

What is the difference between
Ultrasonic and Supersonic?

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Question 3

What is the range of human hearing?

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Question 4

List these in order of slow to fast:

Warm air

Cool air

Steel

Water

space

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Question 5

Pitch is the same as:

Wavelength

Frequency

Amplitude


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Question 6

Describe the meaning of
Resonance

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Question 7

Describe two types of Interference by
drawing the waves on the board

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Question 8

Describe the Doppler Effect

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Question 1

What is measured between any two adjacent
peaks of a transverse wave?

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Question 2

Explain why lightning is seen first,
and then thunder is heard after some
time.

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Question 3

A slinky spring is shaken violently back
and forth. The type of wave most likely
observed would be a _______________.

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Question 4

Explain why sound can not be heard
in space.

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Question 5

Which of the two following
combinations of sounds would produce
“beats”?

400 Hz and 400 Hz

325 Hz and 323 Hz

565 Hz and 265 Hz

210 Hz and 600 Hz

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Question 6

What is the approximate speed of
sound in air (in m/s)?

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Question 7

If a pendulum swings from one
side to another in 1 second.

What is the
wavelength

AND

what is the
frequency?

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Question 8

Explain how the musical instrument
shown could be played at different
amplitudes.

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Question 1

1.

If a vibration has a frequency of 200 Hz, what would be the period of the sound
wave?

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Question 2

Explain why sound is faster in solids than in
gasses or liquids.

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Question 3

Which sound property corresponds to
Frequency?
AND

What are the units of frequency?

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Question 4

Which sound property corresponds to
Amplitude?

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Question 5

A sound wave is a “push
-
pull” wave,
which means that it is classified as a
_________________ wave.

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Question 6

Sound waves need matter to travel
through, which means they are called
__________________ waves.

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Question 7

By decreasing the length of a vibrating
string, the frequency will
be_______________?

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Question 8

Identify the wave property that corresponds
to the sound property of volume.