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Lembar kerjaP4 Waves
Total soal: 15
Worksheet time: 5mins
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Tanggal
1.
Oscillations to the wave motion is parallel in transverse waves, true or false?
a)
true
b)
false
2.
Which of these are longitudinal waves?
a)
Sound wave
b)
Microwave
c)
Light
3.
Waves breaking when hitting a solid and changes direction, what is the name of this process?
a)
Diffusion
b)
Diffraction
c)
Diffrentiation
4.
What is the wavelength of a radio wave moving at 2600 m/s and have 200 waves passing per second? (Measurements in all low caps, no space in between letters)
4 lines
5.
Difference between mechanical waves and electromagnetic waves?
a)
Mechanical wave doesn't need a medium, but EM wave needs it.
b)
Mechanical wave needs a medium, but EM wave doesn't need it.
c)
Mechanical waves can transport energy, but not EM waves.
6.
Does speed and wave length changes with reflection?
a)
yes
b)
no
7.
What do refracted waves and incident waves have in common?
a)
Same wavelength
b)
Same speed
c)
Same frequency
8.
What law describes the relationship between the angle of incidence and angle of refraction?
a)
Schneier's law
b)
Sod's law
c)
Snell's law
d)
Segal's law
9.
Which letter is the amplitude?
a)
A
b)
B
c)
C
d)
D
10.
What is the scientific word for seperation of frequencies?
a)
Splitting
b)
Divergent
c)
Dispersion
d)
Parting
11.
Calculate the refractive index with an angle of incidence of 60 and an angle of refraction of 35 (2 d.p). (No measurements in answer).
4 lines
12.
What does this symbol stands for?
a)
Angle of incidence
b)
Frequency
c)
Wavelength
d)
Angle of refraction
13.
Which of these are untrue about virtual images?
a)
An image formed by a projector is a real image
b)
They can be cast onto a screen
c)
It is always erect
d)
Formed by both concave and convex lenses
14.
What is the direction of vibration in a longitudinal wave?
a)
Parallel
b)
Perpendicular
15.
Lower frequency = longer wavelength?
a)
true
b)
false
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