Assignment 1

Danyal Education
General Wave Properties Assignment 1 (Pure)
Unit
ys
11
Waves
1. The difference
between a transverse wave and
longitudinal wave is the
A wavelength of the wave
B medium through which the wave travels
C speed of the wave
D direction of vibration relative to the wave
2.
Two corks,
X
shows the
A
)
on
resultant direction of the waves?
B
Ed
uc
ati
(
motion
Which of the following correctly
and Y, are floating on the water.
D
C
Which of the following best describes what
happens to them as the wave passes?
motion
X
al
AX moves up and Y moves down.
BX moves down and Y moves up.
CX and Y moves forward.
DX and Y move up and then forward. ()
3. The figure below shows parallel
water
()
4. Which of these waves can only be transverse?
A Waves on a stretched string
B Radio waves
C Sound waves in air
( )
D Waves produced by a speaker
5.
Water moves from deep water to shallow water
shown below.
waves
Da
ny
entering deep water from a shallow water region.
shallow
water
shallow water
deep
water
deep water
Which of the following statement is true?
A
B
C
D
The speed of the waves is the same.
The wavelength in shallow water is shorter,
The frequency in shallow water is smaller.
The waves change direction because of
reflection.
(
as
rlt-IE
The figure below shows an instantaneous position
of a string as a transverse progressive wave travels
along it from left to right.
A
B
C
D
7
2
Which nvo particles have theirvibration in phase?
B 3and6
D 5and7
A 7and4
C 2and7
7
.
(
on
3
9.
The graphs below show how the displacement of
air molecules change with time when different
sound waves are passing by. The scales for each
graph are the same. Which graph shows the
sound with the highest frequency?
)
the diagram below shows the position of a string
AB
at a particular instant of time as a transverse wave
travels along it from left to right.
()
Ed
uc
c
ati
6.
o)
E
0)
o
'1
-g
o"
,9
time
0
Which one of the following correctly shows the
direction ofthe velocities ofthe points 1,2, and
3 on the string?
1
2
3
A
D
J
I
I
I
t
o
o
6
o.9
E
time
0
0
me
)
()
hit
ny
The diagram shows the curved waves about to
a plane barrier.
)
Which of the following diagrams A to D shows
the paths of these waves after they have hit the
barrier?
D
c
E
al
J
Da
8.
+
B
C
C
0
10.
P
o
P and Qare tr,vo points 72 m apart on a string.
Point P vibrates 4 times a second and the wave
reaches Q-t*o seconds later. Iind the period and
wavelength of the wave.
Wavelength,/m
Period/s
A 0.25
B 0.25
c27.5
D23()
1.5
3
11. The
diagram below shows the displacement of
particles along the path of a wave. Which two
particles are moving in the same direction at that
74. A
transverse wave travels steadily
as shown.
from left to
right
direction of wave travel
instant?
direction of
X
E
on
A
Which of the following shows the directions of
movement of the particles X and Y?
B
XY
C
A
C
B andD
CandE
B B andF
D DandF
)
ati
A To the right
To the right
B Downwards Downwards
C Downwards Upwards
D Upwards Downwards (
)
uc
15. A pulse (shown in the diagram below) is sent
along a thin cable which is attached to a wall at
one end.
72- A vibrator dipping into water in a ripple tank
has a period of 7/6 s. The resulting wave has a
wavelength of 0.02 m. What is the speed of the
wave?
(
)
The following diagram illustrates crest of circular
wavefronts radiating from a point source O. If the
time taken for a wavefront to travel from P to Q
is 10 s, and the wavelength of the waves is 2 m,
the speed of the waves, in m s-1, is
Which of the following diagrams correcdy
shows the subsequent reflected pulse?
A
Da
ny
A
c
0.20
1.00
B
D
0.80
1.25
B
<-
al
13.
B 0.12 m s-1
D 6ms-1
Ed
A 0.02 m s-1
C 3ms-1
C
D
+
()
16.
The diagram shows a wave
()
Which of the following
A Frequency
C Speed
decreases as rime passes?
B Wavelength
D Energy
(
)
17. A 12-slit disc is used
as a stroboscope.
It
20.
makes
20 revolutions every 6 seconds. When used to
view waves in a ripple tank, the waves appear
stationary. What is the frequency of the waves?
A 20Hz
C 100 Hz
B 40Hz
D 1.44H2
(
The diagram below shows the waves in a ripple tank
in which the water in parts P and Qis of different
depth. Which conclusion can be made about the
speed and the wavelength of the waves in P and Q!
)
+
v1
n
18. Which of the following statement(s) is/are true
about a transverse wave?
direction in which the wave travels.
Ripple is a form of transverse wave.
P
o
B I, III and V
D II,IIIandV (
)
19. The graph below
shows how a particle on the
surface of a liquid is displaced by the passage of
waves.
uc
a
V
A I, II and III
C II,IIIandIV
tio
I It carries energy.
II It has compressions and rarefactions.
III Its speed depends on the medium.
ry The vibration ofits particles is parallel to the
A (
i.,
B (
in
C (
is greater
Q
is greater
than Vr.'Ihewavelength is greater
P.
q
is less than Vr.'Ihe wavelength is greater in
Ed
displacemenVcm
than Vr.lhewavelength is greater
D ( is less than Vr.lhe wavelength is greater
(
inP.
0.006
time/s
0
0.03
21. the figure below shows two pulses
a
al
the following is correct?
s-1,
<_
ny
0.006
0.072
0.04
o.o4
X
which of
Wavelength,/cm Amplitude/cm
Da
A
B
c
D
is 2 cm
Both pulses arrive at X simultaneously. Which
of the diagrams below shows the resulting
waveform at X?
B
A
0.04
0.006
0.072
0.006 (
moving along
rope towards point X.
+
If the speed of these waves
)
)
C
D
)
22.
'Ihe graph represents a wave pulse travelling along
a rope at 2 m s-1 in the direction shown by the
B
C
arrow.
............................................*
25. A
P
1,5
4
15
40
2.6
26
22.5
22.5
D
direction ol wave travel
wave generator which makes 5 oscillations a
in a ripple tank.
n
Il
ati
o
position/m
From the moment shown,what is the shortest time
before the point P on the rope has a displacement
of 1.0 m?
B 4.0s
D 8.0s
(
12cm
-)
Which of the following is correct for the
Frequency/ Wavelength/ Speed/
)
Hz
23. Which of the following
Sound
waves
cm
40.5126
85315
c512240
D20360
statements about the
three waves listed below is correct?
Water
waves
waves
produced?
Ed
uc
A 2.0s
C 6.0s
()
second is used to produce waves
68101214
1m
Frequency/Hz
Wavelength,/mm
A
Electro-
magnetic
cm s-l
waves
Tiansverse
A Tiansverse Longitudinal
Stationary Stationary Stationary
B Longitudinal Tiansverse Longitudinal
Progressive Stationary Stationary
C Tiansverse Longitudinal Transverse
Progressive Progressive
D Longitudinal Tiansverse
24. A vibrating source S
graphs below refer to the same wave
speed of the wave?
What is the
Progressive
Longitudinal
Progressive
ny
al
Stationary Progressive
26. 'Ihe two
(
4mm
()
2
6
01
16
20
22
time/s
produces circular water
Da
waves near a straight reflector.
4mm
1.0 1.2 1.4 1.6
0.2 0.4 0.6 0.8
1.8 2.0 2.2 2.4 2.6
(.:
distance/m
2
3
4
A
C
9.3 m s-1
0.72ms-1
B
D
2.25 m s-l
0.36 m s-1
)
5
45 mm
If the speed is 60 mm s-1, find the wavelength
and frequency ofthe waves.
I
{
student generates a transverse wave in a long
rope. He makes 2 oscillations in 1.6 seconds.
29. the diagram shows a water
wave. Four quantities
associated with waves have been labelled.
B
amplitude
D wavefront
ati
o
A displacement
C wavelength
n
27. A
Which quantity is labelled wrongly?
Which of the following correctly represents the
shape ofthe rope one second later?
A
B
30.
()
Tiansverse waves are moving past a small boat on
a lake.
uc
wave travelling
this waY
boat
D
C
Ed
-=-"+
Which way will the waves make the boat move?
A Towards the left
B Towards the right
C
D
(
Backwards and forwards
Upwards and downwards
(
)
)
31. When waves approach the shoreline with a gentle
al
28. A ripple tank contains water of varying depths.
Which diagram correctly represents the water
waves as they travel from the shallow to the deep
<-D
Da
A<-B<-
ny
region?
C
<-
()
slope,
A
their wavelength increases but the frequency
decreases
B
their wavelength decreases but the frequency
remains constant
C
-. speed increases but their frequency
their
D
remains constant
their speed and frequency both increase
()
32. A pebble is dropped into still water so that
circular wavefronts are seen to travel outwards
a speed u.
If the wavelength
B
C
D
is 1., what is the
time taken for the disturbance at P to reach
Q
\i
:
\i2
tio
n
with
A
o
,:
c*
33. Which of the following graphs
how the wavelength,
1,,
()
B
T
particle caused by
a speed of 5.0 m s-1.
a progressive
0
DI
CT
a
wave travelling at
displacemenVmm
+2
U
0
)
best represents
of the water waves in the
ripple tank, varies with its frequency,/?
AT
(
35. The diagram represents the displacements of
Ed
uc
a
B+
D4
^*
i
20
4
time/ms
-2
What is the frequency of vibration of the
0
ny
al
particle?
n
()
34. The diagram
shows the direction
of travel of
plane water waves from a deep region to a shallow
Da
region.
Deep
Shallow
shows the direction ofthe
waves after passing into the shallow region?
Which of the following
A 0.25H2
C 100H2
36.
B 50Hz
D 250H2
)
If a wave of velocity c is of frequency -F and
wavelength ,\, then for a wave of velocity 2c, the
frequency and wavelength could be
Frequency
A2F2A
BF/2A
CF/22
DF2i()
Wavelengh
39. A
small boat floats up and down on waves on the
shown in the diagram below. It takes 4.0 s
to make one complete up and down movement.
direction of wave
.......................*
sea as
wave travelling
A vibrator generates a travelling wave on a string.
The diagram shows the shape of the string at a
certain instant. Which of the following shows
the shape of the string between P and Qafter a
quarter of a period?
AB
n
thisway+
o
P
What is the frequency, in Hz, of the
tio
Jt.
A 0.25
c 4.00
B 0.50
D 8.00
40. Which of the following diagrams
waves?
(
)
shows sound
P
ny
al
Ed
uc
a
waves travelling from air to glass?
o
o
AB
at
C
P
air
D
o
P
\\
glass
D
C
arr
air
()
38. The basic difference between
transverse and
longitudinal mechanical waves is a difference in
direction ofvibration
frequency
medium through which they travel
wavelength
Da
A
B
C
D
()
)