WorksheetsSound - CLCE 2019 SCIENCE SECTION
Total questions: 22
Worksheet time: 12mins
A ripple tank is used to study water waves. The diagram shows a top view and a side view of a
wave. A wave crest is marked.
What is the speed of the wave?
the number of wave crests passing a point in one second
the time taken for a crest to make one vibration
the distance travelled horizontally by a crest in one second
the distance travelled vertically by a crest in one second
Which of the following options in the table correctly gives the properties of sound waves?
A
B
C
D
True or false. Sound travels faster in orange juice than a iron.
false
true
Charles College of Education (CLCE) is situated about 20km from Monze town. How long would it take people at CLCE to hear a loud bang that takes place in Kobil (Monze) is sound travels at 340m/s?
38.4s
19.4s
58.8s
29.4s
A wave has a frequency of 3.0 Hz and its speed is 1.2m/ s. Calculate the wavelength
of the wave.
400m
40cm
2.5m
250cm
Chikuni radio station broadcasts at a frequency of 60 MHz (6.0 × 107 Hz). The speed of radio waves is 3.0 × 108 m / s.
What is the wavelength of the waves broadcast by the station?
5.0m
2.0m
0.5m
0.2m
Sound waves travel faster at 0oC than 25oC.
False
True
Its possible to make sound travel can the speed of light (3.0 X108m/s).
False
True
Human can perceive sound with a range of_________ to ________Hz
4 - 2,000Hz
20 - 20,000Hz
20,000 -100,000Hz
50 - 50,000Hz
Bats are able to locate their found because of the ability of sound waves to?
travel slower
elongate further
bounce back from an obstacle
accelerate faster
Sound is produced only when some material body is made to vibrate.
True
False
The number of vibrations per second taken by a wave is called its frequency.
False
True
___________ is the unit used for measuring sound level.
metres (m)
metres per second (m/s)
hertz (Hz)
Decibel (dB)
One difference between light waves and sound waves is that_______________
sound waves do not require a medium for propagation
light waves do not require a medium for propagation
light waves travel with a speed of 340m/s
sound waves travel at a speed of 3.0 X 108 m/s
Sound waves can travel in a vacuum
False
True
Arrange the speeds of sound in gases, solids and liquids in an ascending order
The speed of sound is lowest solids, higher in gases and highest in liquids
The speed of sound is lowest in gases, higher in solids and highest in liquids.
The speed of sound is lowest in solids, higher in liquid and highest in gases.
The speed of sound is lowest in gases, higher in liquid and highest in solids.
Why cannot two astronauts hear each other on the moon?
there is a vacuum on the moon, hence sound waves cannot propagate
because of the head helmets that astronauts wear on the moon,they block and cover their ears
because the two astronauts are too far away from each other
because of weightless resulting from gravity on the moon
The loudness of a note is determined by its amplitude
False
True
The pitch of sound is not determined by its frequency
True
False
The following formula is for calculating
Wave length
Frequency
Velocity
Depth
What is the significance of the formula below
Allows for quick change of subject of the formula
it shows the units
Shows speed instead of velocity
It has nosignificance
The earth is about 150,000,000km from the sun, and it takes light from the sun travels at a speed of 3.0 X 108 m/s.
Using the above information, calculate the time taken by light from the sun to the earth.
116 minutes
16 minutes
50 seconds
500 seconds
