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Mechanical Waves
Test Description: Waves of the sea and other types represent mechanical waves ,our games to day about mechanical waves
Instructions: Answer all questions to get your test result.
1) In homogenous medium waves propagate at a
A
No speed of propagation
B
Variable speed
C
Constant speed
D
None of the choices
2) The wave propagates in the cord :
A
Some of them carries others doesn’t
B
None of the choices
C
Carries energy
D
Doesn’t carry energy
3) Mechanical wave to propagate :
A
Some needs mediums others doesn’t
B
Needs a medium
C
Doesn’t need a medium
D
None of the above choices
4) The longitudinal wave is :
A
Periodic
B
Damped
C
None of the choices
D
Non periodic
5) A transverse wave vibrates the particles of the medium :
A
Oblique to the direction of the propagation of the wave
B
All choices
C
Parallel to the direction of propagation of the wave
D
Perpendicularly to the direction of the propagation of the wave
6) Longitudinal wave vibrates the particles of the medium :
A
Oblique to the direction of the propagation of the wave
B
Parallel to the direction of propagation of the wave
C
All choices
D
Perpendicularly to the direction of the propagation of the wave
7) We can determine the period of periodic wave :
A
Counting the number of units in vertical axis in one crest
B
None of the choices
C
Counting number of units in horizontal axis in one positive half wave
D
Counting number of units in horizontal axis between two crests
8) A motion is said to be periodic if repeat itself identically at successive instants separated by a constant time interval ( T ) is called :
A
period
B
amplitude
C
Frequency
D
Wavelength
9) The highest point of a mechanical wave is called
A
Trough
B
Amplitude
C
Crest
D
Wavelength
10) A periodic wave is characterized by its :
A
Amplitude
B
All choices
C
Frequency
D
Period
*select an answer for all questions
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