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Oscillations And Waves
Quiz 1
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Q.1
Bunyi pantulan yang terjadi hampir bersamaan dengan bunyi asli dan terdengar saling bertumpuk disebut dengan . . . .
Gaung
Gema
Akustik
Feedback
Q.2
Jovian screams near a canyon and can hear his echo 3 seconds later. If the speed of sound at that time ism/s, what is the distance between Jovian and the canyon>
900 m
300 m
150 m
100 m
Q.3
The range audiosonic frequency is . . . .
20 - 2000 Hz
10 - 10 000 Hz
20 - 20 000 Hz
20 - 10 000 Hz
Q.4
An imaginary line that is perpendicular to any surfaces is called . . . .
imaginary line
vertical line
normal line
straight line
Q.5
The wave can propagate without any medium. It is the characteristic of these waves, except . . . .
Light
Electromagnetic wave
Infrared
Sound wave
Q.6
A sound wave has a frequency ofHz. If its wavelength is 3 m, calculate its wave speed.
16.7 m/s
60 m/s
75 m/s
150 m/s
Q.7
Jason heard a thunder 2 seconds after he saw the lightning. If the speed of sound ism/s, what is the distance between Jason and the lightning?
600 m
302 m
300 m
150 m
Q.8
A change of amplitude will change:
the wavelength
the loudness
the frequency
the pitch
Q.9
A violin string could vibrate with frequency of 1 kHz. The time period is . . . .
1000 s
10 s
0.1 s
0.001 s
Q.10
A pendulum swings 5 times in a second. What is its frequency?
0.2 s
0.5 s
1.0 s
5.0 s
Q.11
A pendulum has a time period of 0.4 s. What is its frequency?
0.4 Hz
1.0 Hz
2.5 Hz
4.0 Hz
Q.12
A pendulum is observed to completefull cycles inseconds. Determine the period of the pendulum.
90 seconds
6 seconds
4 seconds
0.25 second
Q.13
Calculate the time period of a wave with a frequency ofHz.
50 seconds
5 seconds
0.2 second
0.02 second
Q.14
Wave period means . . . .
the highest point above the rest position
the time taken for a full cycle of the wave
the maximum displacement of a point of a wave from its rest position
the number of waves passing a point each second
Q.15
The number of waves passing a point each second is . . . .
Period
Longitudinal waves
Frequency
Wavelength
Q.16
The maximum displacement of a point of a wave from its rest position or equilibrium point is called . . . .
Amplitude
Frequency
Crests
Period
Q.17
The period T is the time required for one complete oscillation or cycle, It is related to the frequency by?
T=2/F
T=1/F
T=3/F
T=4/F
T=2F
Q.18
In simple harmonic motion (SHM), the displacement x(t) of a particle from its equilibrium position is described by the equation of?
x = xm cos(ωt - ϕ)
x = xm cos(ωt - 2ϕ)
x = xm cos(ωt + 2ϕ)
x = xm cos(ωt + ϕ)
x = xm cos(2ωt + ϕ)
Q.19
x=xmcos(ωt+ϕ)x=xm\cos(ωt+ϕ)x=xmcos(ωt+ϕ) What is xmxmxm in above equation stand for?
amplitude of the velocity
amplitude of the distance
amplitude of the displacement
distance of the amplitude
velocity of the amplitude
Q.20
v=−ωxmsin(ωt+ϕ)v=−ωxm\sin(ωt+ϕ)v=−ωxmsin(ωt+ϕ) the aim of the above formula is to find?
distance
displacement
velocity
acceleration
angular velocity
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