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Course: HIA International — Grade 6
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HIA International — Grade 6

Unit 1: Cells and organisms

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Unit 2: States of matter, atoms and compounds

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Unit 3: The Solar System and energy

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Unit 4: Living organisms and classification

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Unit 5: Metals, non-metals, acids and alkalis

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Unit 6: Sound, the Earth and eclipses

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Unit 7: Microorganisms and food webs

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Unit 8: Chemical reactions

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Unit 9: Electricity and circuits

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Quiz

Checkpoint Grade 6 Unit 6 – 6.1 Sound Waves

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Sound Waves Checkpoint Earth and Space quiz: free practice for Cambridge Checkpoint Earth And Space 0893. Work through this Sound Waves Checkpoint Earth and Space quiz and get instant feedback on every answer. If you get stuck, review the 2.1 Sound waves lesson. More practice: Cambridge Checkpoint Earth And Space 0893 — all units. Syllabus: Cambridge Lower Secondary programme.

  • Questions count: 47
  • Passing grade: B+
  • Time limit:
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1.
Which statement best expresses the lesson objective about Sound waves?
Explain that vibrations make sound
The terms backwards and forwards and loudness are always interchangeable
Evidence is unnecessary when studying Sound waves
Every model is an exact copy of reality
2.
Which practical work belongs to Sound Waves?
Interpret cross-sections and use matching evidence such as fossils, rocks and coastline patterns
Relate plate-boundary movement to earthquakes, subduction, volcanoes and fold mountains
Model echoes and apply reflection ideas to echolocation and room acoustics
Use particle models and demonstrations to compare sound through different media
3.
Trace A shows a note played on a flute. All four traces use the same oscilloscope settings. Which trace shows a quieter note with the same pitch as A?
Dr Dabour Hub Academy - figure 1
Trace B on the screen
Trace C on the screen
Trace D on the screen
Trace A again, louder
4.
Lucy sets up the apparatus shown and switches on the bell. She then slowly pumps air out of the jar. What does she hear, and why?
Dr Dabour Hub Academy - figure 2
The bell stops moving, as a bell needs air to vibrate
The ringing gets quieter, as fewer particles pass on the vibrations
The ringing gets louder, as the empty jar echoes more
Nothing changes, as the glass jar carries the sound
5.
The diagram shows air particles as a sound wave passes through them from a loudspeaker. Which statement about regions X and Y is correct?
Dr Dabour Hub Academy - figure 3
X is a rarefaction and Y is a compression
X and Y are both compressions
X is a compression and Y is a rarefaction
X is a vacuum with no particles
6.
A whale call and a foghorn blast each travel 1500 m, the whale call through water and the foghorn through air. Use the chart. About how much longer does the foghorn take to arrive?
Dr Dabour Hub Academy - figure 4
About 4.4 seconds longer
About 1.0 second longer
About 1160 seconds longer
About 3.4 seconds longer
7.
Kofi held a ruler on a desk, twanged the overhanging end and measured the frequency of vibration for different overhang lengths. What do his results show?
Dr Dabour Hub Academy - figure 5
A longer overhang vibrates more slowly and gives a lower pitch
A longer overhang vibrates faster and gives a higher pitch
A longer overhang gives a louder sound at the same pitch
The overhang length has no effect on the pitch
8.
A garden device gives out a 30 000 Hz sound to scare animals away. Using the chart, which of the four animals can hear it?
Dr Dabour Hub Academy - figure 6
Humans and dogs only
Dogs and bats only
Bats only
All four animals
9.
Eva stood 200 m from Luis on a field. Luis fired a starting pistol and Eva started her stopwatch when she saw the smoke and stopped it when she heard the bang. Using sensible results only, what is the speed of sound?
About 333 m/s
About 308 m/s
About 250 m/s
About 120 m/s
10.
Mei tightened a guitar string and measured the frequency of the note each time. Which conclusion is supported by her results?
A tighter string gives a louder note
A tighter string gives a higher-pitched note
A tighter string gives a lower-pitched note
Tightness has no effect on the note
11.
A factory advises ear defenders for anyone exposed to more than 85 dB for a long time. Using the table, which workers need ear defenders?
The office worker and the canteen cook
Only the drill operator
The saw operator and the drill operator
All four workers
12.
A class measured the sound level from a bell inside a jar as air was pumped out. Which conclusion is best supported?
A total vacuum would still give about 20 dB, following the pattern
The bell vibrates less when there is less air
Sound travels faster when there is less air
Less air makes the bell quieter, so sound needs particles to travel
13.
Four sounds were shown on an oscilloscope with the same settings (see table). Each sound is paired with a description. Which pairing is correct?
Sound 3 – loud and high-pitched
Sound 1 – quiet and low-pitched
Sound 2 – loud and high-pitched
Sound 4 – loud and low-pitched
14.
A sound wave passes through the air in a classroom from the teacher to Jin. What do the air particles do?
Travel all the way from the teacher to Jin
Vibrate backwards and forwards about the same place
Stay perfectly still while the energy passes
Move up and down at right angles to the wave
15.
Two astronauts on a space walk cannot hear each other through space, but they can when they press their helmets together. Why?
Pressing helmets makes their voices higher in pitch
Space is full of air near a spacecraft
The touching helmets form a solid for the vibrations to pass through
Light carries the sound between the helmets
16.
A loudspeaker cone vibrates backwards and forwards 440 times every second. What is the frequency of the sound?
440 dB (decibels)
440 m/s (metres per second)
1/440 Hz (hertz)
440 Hz (hertz)
17.
During a storm, Pablo always sees the lightning before he hears the thunder, even though both are made at the same time. Why?
Light travels much faster than sound
Sound travels faster than light
Thunder is made after the lightning
His eyes react more slowly than his ears
18.
In a lab, a signal generator is connected to a loudspeaker. Hamid turns the frequency dial from 200 Hz up to 2000 Hz, keeping the volume the same. What does he hear?
The note becomes much louder
The note becomes lower in pitch
The note becomes higher in pitch
The sound stops completely
19.
A railway worker hears a train through the steel rail before hearing it through the air. Sound travels at about 5000 m/s in steel and 340 m/s in air. Roughly how many times faster is the sound in the rail?
About 5 times faster
About 15 times faster
About 0.07 times faster
About 4660 times faster
20.
A doctor uses sound with a frequency of 3 000 000 Hz to see a baby in the womb. What name is given to sound of this frequency?
Infrasound, below human hearing
Audible sound, inside our range
A vacuum wave with no medium
Ultrasound, above human hearing
21.
Chloe wants to show that sound travels through a solid. Which plan is the best test?
Shout across the playground and ask a friend to wave back
Put a ringing phone in a glass of air and listen from far away
Tap one end of a long wooden bench while a partner listens with an ear pressed to the other end
Look at a guitar string vibrating and count the vibrations
22.
Each term is paired with a meaning. Which pairing is correct?
Amplitude – number of waves per second
Pitch – how high or low a sound is
Frequency – size of the vibration
Vacuum – material that carries sound
23.
Each medium is paired with an approximate speed of sound. Which pairing is correct?
Air – about 5000 m/s
Steel – about 340 m/s
Water – about 1500 m/s
Vacuum – about 1500 m/s
24.
Each sound is paired with the part that vibrates to make it. Which pairing is correct?
Human voice – the ear bones
Loudspeaker – the plug
Violin – the chin rest
Guitar – the plucked string
25.
A class measured how long an echo took to return at different distances from a wall and plotted the graph shown. Which result is anomalous, and what should the class do about it?
Dr Dabour Hub Academy - figure 7
The 80 m result; repeat the measurement at 80 m
The 100 m result; remove it because it is the largest
The 20 m result; the time is too short to be real
None is anomalous; the line should be drawn as a curve
26.
Match the term to its correct meaning: decibel
the number of complete vibrations each second, measured in hertz
a wave in which the particles vibrate along the same direction the wave travels
the unit used to measure the loudness of a sound
the distance between one compression and the next
27.
Which term is described as: the instrument that displays a sound wave as a trace on a screen?
wavelength
oscilloscope
frequency
amplitude
28.
Which term is described as: the number of complete vibrations each second, measured in hertz?
oscilloscope
frequency
longitudinal wave
compression
29.
The human audible range is about 20 Hz to _____ Hz.
200000
2000
20000
200
30.
Zara sees a lightning flash and starts a stopwatch, stopping it when she hears the thunder (see diagram). Sound travels at 340 m/s in air, and the light reaches her almost instantly. The storm is about _____ away.
Dr Dabour Hub Academy - figure 8
85 m (0.085 km)
680 m (0.68 km)
1360 m (1.36 km)
344 m (0.344 km)
31.
A region in a sound wave where the particles are squashed close together is called a _____.
rarefaction region
vacuum region
amplitude region
compression region
32.
How loud a sound is depends on the _____ of the vibration.
frequency (rate)
amplitude (size)
medium (material)
speed (m/s)
33.
Whale songs can be heard by other whales many kilometres away because the vibrations pass through water, which is the _____ for the sound.
medium it travels in
vacuum it travels in
frequency it travels in
oscilloscope it uses
34.
Sound cannot travel through a vacuum because there are no particles to vibrate. - True or false?
True
False
35.
Sound travels faster in water than in air. - True or false?
True
False
36.
Looking at the table, Arjun says: "Sound travels fastest in solids and slowest in gases, and ice carries sound faster than liquid water." True or false?
False – the statement is wrong
False – liquids carry sound fastest
False – water is faster than ice
True – the statement is correct
37.
Every sound is made by something vibrating. True or false?
False – the statement is wrong
False – only music is made by vibrating
True – the statement is correct
False – loud sounds need no vibration
38.
In a sound wave, the air particles move along with the wave all the way from the source to the listener. True or false?
True – the statement is correct
False – they only vibrate about one place
True, but only in a gas
True, as that is how energy moves
39.
A knock on a water-filled steel pipe reaches a listener through the steel wall at about 5000 m/s and through the water inside at about 1500 m/s. The steel carries it more than three times as quickly. True or false?
True – the statement is correct
False – the statement is wrong
False – it is only 1.5 times as quick
False – water carries it more quickly
40.
A healthy young person can hear a sound with a frequency of 30 000 Hz. True or false?
True – the statement is correct
True, if the sound is loud enough
True, as it is below 50 000 Hz
False – it is above 20 000 Hz
41.
Hitting a drum harder doubles the amplitude of its vibration, so the drum note becomes higher in pitch. True or false?
True – the statement is correct
False – it becomes louder instead
True, as amplitude sets the pitch
True, but only for small drums
42.
In a sound wave, compressions are the regions where the particles are spread furthest apart. True or false?
True – the statement is correct
True, as compressions push particles away
False – that describes a rarefaction
True, but only in liquids
43.
Sound is a longitudinal wave: particles vibrate parallel to the direction the wave travels. True or false?
False – the statement is wrong
False – sound is a transverse wave
False – the particles do not vibrate
True – the statement is correct
44.
Sam says a big drum sounds lower than a whistle because the drum's vibrations have a smaller amplitude. True or false?
False – the drum has a lower frequency
True – the statement is correct
True, as small amplitude means low pitch
True, but only when played softly
45.
A sound with a frequency of 50 Hz has a lower pitch than a sound of 500 Hz. True or false?
False – the statement is wrong
True – the statement is correct
False – 50 Hz is the higher pitch
False – both have the same pitch
46.
Sound travels slowest in gases because their particles are far apart, so vibrations are passed on less quickly. True or false?
True – the statement is correct
False – the statement is wrong
False – gases carry sound fastest
False – particle spacing has no effect
47.
Ear defenders protect hearing by lowering the frequency of the sound that reaches the ear. True or false?
True – the statement is correct
True, as low sounds cannot harm ears
True, but only for high sounds
False – they reduce the amplitude reaching the ear
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Part of Unit 6: Sound, the Earth and eclipses — see every lesson and quiz in this unit.
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