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Course: Alhussan Physics — Stage 7
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Alhussan Physics — Stage 7

Chapter 1: Energy

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Chapter 2: Forces

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Chapter 3: Sound

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Chapter 4: Electricity

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Chapter 5: The Earth in Space

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Quiz

Physics 3.2 Detecting sounds — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
Hearing range ____ with age.
doubles
stays
increases
decreases
2.
Students with hearing loss by headphone use (h/day). What is the value for 1–2?
Dr Dabour Hub Academy - figure 1
19
6
3
11
3.
Why do we have two ears?
For decoration
To balance only
To hear twice as loud
To work out where a sound comes from
4.
Which term matches this definition? “Damage reducing ability to hear.”
Conventional current
Hearing loss
Eardrum
Positive charge
5.
The part of the ear you can see is the ____.
pinna
cochlea
canal
ossicle
6.
Which statement is NOT correct?
A microphone changes sound into an electrical signal.
Dogs can hear higher frequencies than humans.
The eardrum is a bone.
Loud noise can damage the hair cells.
7.
Students with hearing loss by headphone use (h/day). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 2
A
B
C
D
8.
Students with hearing loss by headphone use (h/day). About how many times bigger is >4 than <1?
Dr Dabour Hub Academy - figure 3
6.3
12.7
3.2
9.5
9.
True or false? Bats can hear ultrasound.
True
False
10.
Which term matches this definition? “Coiled tube in the inner ear with hair cells.”
Open switch
Cochlea
Longitudinal wave
Parallel circuit
11.
20% of 200 students have hearing loss. How many?
10
40
4000
160
12.
Sound reaches each ear at slightly different ____.
pitches
colours
speeds
times
13.
True or false? A microphone has a diaphragm that vibrates.
True
False
14.
True or false? Hearing range increases with age.
True
False
15.
True or false? Loud noise can damage the hair cells.
True
False
16.
Students with hearing loss by headphone use (h/day). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 4
A
B
C
D
17.
Which term matches this definition? “The three smallest bones in the body, in the middle ear.”
Cochlea
Ribs
Ossicles
Vertebrae
18.
Which statement is correct?
Ultrasound is below 20 Hz.
Loud noise can damage the hair cells.
The eardrum is a bone.
The cochlea is in the outer ear.
19.
Time difference between ears for sounds from angles. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 5
"Delay (ms)" decreases as "Angle (°)" increases
"Delay (ms)" rises to a peak at 90, then falls
"Delay (ms)" increases as "Angle (°)" increases
"Delay (ms)" stays the same
20.
Which is the correct definition of “Ossicles”?
Shown flowing from + to −.
Space with no particles; sound cannot travel.
Safety wire carrying current to the ground.
Three tiny bones in the middle ear.
21.
Students with hearing loss by headphone use (h/day). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 6
A
B
C
D
22.
Which term matches this definition? “Changes sound into an electrical signal.”
Lightning
Microphone
Fuse
Earth wire
23.
The ossicles are the three ____ bones in the body.
longest
softest
smallest
largest
24.
Upper hearing limit with age. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 7
A
B
C
D
25.
True or false? The ossicles amplify vibrations.
True
False
26.
Which term matches this definition? “Thin sheet in a microphone that vibrates.”
Longitudinal wave
Diaphragm
Neutral wire
Ultrasound
27.
Elephants communicate with ____.
ultrasound
light
radio
infrasound
28.
Which term matches this definition? “Thin membrane that vibrates when sound arrives.”
Friction
Eardrum
Hearing range
Attract
29.
Time difference between ears for sounds from angles. What is the value of "Delay (ms)" when "Angle (°)" is 60?
Dr Dabour Hub Academy - figure 8
0.4
0.5
0.0
0.2
30.
Students with hearing loss by headphone use (h/day). What is the total of all the values?
Dr Dabour Hub Academy - figure 9
39
19
34
44
31.
Upper hearing limit with age. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 10
A
B
C
D
32.
Upper hearing limit with age. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 11
A
B
C
D
33.
Ears are 0.22 m apart; sound 340 m/s. Max time difference in ms?
6.47 ms
1545.45 ms
0.65 ms
74.80 ms
34.
Students with hearing loss by headphone use (h/day). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 12
A
B
C
D
35.
The cochlea contains tiny ____.
bones
lenses
mirrors
hair cells
36.
A microphone changes sound into an ____ signal.
light
nuclear
chemical
electrical
37.
20% of 50 students have hearing loss. How many?
1000
10
40
2
38.
Students with hearing loss by headphone use (h/day). Which has the smallest value?
Dr Dabour Hub Academy - figure 13
1–2
2–4
<1
>4
39.
Students with hearing loss by headphone use (h/day). About how many times bigger is >4 than <1?
Dr Dabour Hub Academy - figure 14
11.3
5.7
2.8
8.5
40.
A bat hears up to 100 kHz; humans 20 kHz. How many times higher?
0.2 times
120.0 times
5.0 times
80.0 times
41.
Upper hearing limit with age. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 15
A
B
C
D
42.
True or false? Loud sounds can permanently damage cells in the cochlea.
True
False
43.
Which statement is NOT correct?
Microphones produce light.
The pinna is the part of the ear you can see.
A microphone has a diaphragm that vibrates.
Dogs can hear higher frequencies than humans.
44.
Which statement is correct?
The cochlea is in the outer ear.
The eardrum is a bone.
The cochlea contains tiny hair cells.
Loud noise cannot harm hearing.
45.
Which is the correct definition of “Cochlea”?
Using echoes to find depth or objects underwater.
Coiled tube in the inner ear with hair cells.
Safety wire carrying current to the ground.
Negative particle that moves when objects are charged.
46.
Which statement is correct?
The ossicles are in the outer ear.
Microphones produce light.
The cochlea is in the outer ear.
Two ears help you find the direction of a sound.
47.
True or false? Humans hear from about 20 Hz to 20 000 Hz.
True
False
48.
Which is the correct definition of “Hearing range”?
Huge electrostatic discharge from a cloud.
Sound above 20 000 Hz.
A wave of vibrations that needs a medium.
About 20 Hz to 20 000 Hz for humans.
49.
Hearing range of animals (upper limit, kHz). Which has the greatest value?
Dr Dabour Hub Academy - figure 16
Cat
Human
Dog
Dolphin
50.
True or false? The ossicles are in the middle ear.
True
False
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Part of Chapter 3: Sound — see every lesson and quiz in this unit.
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