H8.2
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Éléments de cette leçon
Slide 1 - Diapositive
Slide 2 - Diapositive
Howmany cycles (wavelengths) can you see?
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A
6
B
3
Slide 3 - Quiz
If one cycle(wavelength) is 1 millisecond, what is the frequency?
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Slide 4 - Question ouverte
If one cycle(wavelength) is 500 milliseconds?
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Slide 5 - Question ouverte
Calculate the value of the vibration period (T)?
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Slide 6 - Question ouverte
Calculate the frequentcy.
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Slide 7 - Question ouverte
Calculate the frequentcy of this tuningfork.
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Slide 8 - Question ouverte
Which graph has the largest amplitude?
Graph 1
Graph 2
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A
Graph 1
B
Graph 2
C
The aplitudes are equal.
D
You can't determine this with the given information.
Slide 9 - Quiz
The timebase of this graph is 0,005 s/div. Calculate the frequentcy.
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A
20 Hz
B
50 Hz
C
0,000020 Hz
D
50000 Hz
Slide 10 - Quiz
Which letter indicates the aplitude?
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A
a
B
b
C
c
D
d
Slide 11 - Quiz
Calculate the frequentcy. The vibration piriod has the following value:
T= 0.02 seconds
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A
20 Hz
B
50 Hz
C
0,000020 Hz
D
50000 Hz
Slide 12 - Quiz
An object makes 25 cycles in 2,0 minutes. Which answer has the correct calculation?
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A
f = 120 / 25 = 4,8 Hz
B
f = 25 / 120 = 0,21 Hz
C
f = 2,0 / 25 = 0,08 Hz
D
f = 25 / 2,0 = 13 Hz
Slide 13 - Quiz
Calculate the the vibration piriod.
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A
4 ms
B
6 ms
C
8 ms
D
10 ms
Slide 14 - Quiz
Which question(s) did you have some difficulty with and why?
