sense review
TRANSCRIPT
![Page 1: Sense review](https://reader036.vdocuments.us/reader036/viewer/2022062308/558e355a1a28abf63f8b46d3/html5/thumbnails/1.jpg)
True or False Answers
Senses
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1. We can use different organs to detect stimuli
at the same time.
True
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2. Images cannot be formed on the blind
spot.
False
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3. There are cells which detect light all over the
retina.
False
![Page 5: Sense review](https://reader036.vdocuments.us/reader036/viewer/2022062308/558e355a1a28abf63f8b46d3/html5/thumbnails/5.jpg)
4. The cause of cataract is the whitening of the
Cornea.
False
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5. When you look at near by objects, the lenses in your eyes
become thicker.
True
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6. A human eye changes the thickness of its lens
during focusing.
True
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7. A person cannot see near objects clearly. He can wear glasses with concave lenses.
False
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8. The Cochlea in the ear transmits and amplifies
the vibrations.
False
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9. In the eye, the pupil may be brown, blue or
green in colour.
False
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10. When a long-sighted person looks at near
objects, light rays will focus behind the retina.
True
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11. Microscopes form images which are bigger
than the object.
True
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12. There are small numbers of light-sensitive
cells at the blind spot.
False
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13. The iris controls the size of the pupil.
True
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14. The retina contains rods which can detect light.
True
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15. When a person suffers cataract, his lens
becomes cloudy.
True
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16. The thickness of the lens in the eye is controlled
by the focusing muscle.
True
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17. Color blindness can be corrected by wearing
special glasses.
False
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18. The chance of a male being colour-blind is greater
than that of a female.
True
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19. Human beings cannot see vary far at
night.
True
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20. Short sight can be corrected by wearing
glasses with convex lenses.
False
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21. Cataract is the clouding of the eye lens.
True
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22. The front part of the eye is covered by the cornea which is brown or blue.
False
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23. Short-sightedness can be corrected by convex lenses.
False
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24. Our lens becomes thicker when we look at
near objects.
True
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25. Different animals have different hearing
ranges.
True
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26. Sound cannot travel in space with no
particles.
True
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27. The unit of frequency is decibel
(dB).
False
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28. A tuning fork with higher frequency is shorter and can
produce a note of higher pitch.
True
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29. Sound can travel through air and liquid but it
cannot travel through a solid.
False
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30. Different people have ranges of hearing. The upper
limit of young people is higher than that of the elderly
people.
True
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31. The middle ear is filled with liquid.
False
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32. Sound cannot travel through a vacuum.
True
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33. Different animals have different ranges of
audible frequencies.
True
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34. All sounds are produced by vibrations.
True
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35. Frequency is the number of vibrations per minute.
False
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36. The ear bones in the middle ear can change the vibrations into a message
which is then carried by the auditory nerve to the brain.
False
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37. The pinna changes sound waves into
vibration.
False
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38. Sound cannot travel through solid.
False
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39. The unit of frequency is hertz (Hz).
True
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40. Sound can travel through vacuum.
False
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41. Sound cannot travel through liquid.
False
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42. The audible frequency of human beings is between
20 Hz to 20,000 Hz.
True
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43. Bats have the widest audible range.
True
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44. Noise can cause deafness, but it is annoying.
False
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45. The function of the ear bones is to transmit the vibrations only.
False
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46. The human nose can detect four kinds of taste.
False
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47. Each taste bud is a taste receptor which detects taste.
False
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48. The only function of the human skin is to detect
pain, pressure, touch and temperature.
False
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49. Each taste bud contains 30 taste receptors.
False
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50. The sweet receptors are located in the front of the tongue.
True
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51. The human skin can keep out germs.
True
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52. Different parts of our bodies are not equally sensitive to touch.
True
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53. Tongue can detect four different tastes.
True
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54. Our skin has four different types of sense receptors.
False
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55. Our skin is very reliable in detecting hot
and cold.
False
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56. Medulla is responsible for controlling heartbeat
and breathing.
True
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57. Alcohol can affect nerve cells. It can slow down our response and
affect our judgement.
True
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58. Adding Sodium Chloride to hydrochloric acid is an
example of neutralization.
False
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Sentence completion
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1. The retina contains
Light-sensitive cells
![Page 62: Sense review](https://reader036.vdocuments.us/reader036/viewer/2022062308/558e355a1a28abf63f8b46d3/html5/thumbnails/62.jpg)
2. The iris controls
the size of the pupil.
![Page 63: Sense review](https://reader036.vdocuments.us/reader036/viewer/2022062308/558e355a1a28abf63f8b46d3/html5/thumbnails/63.jpg)
3. The blind spot has
no light-sensitive cells.
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4. The lens can change its
thickness.
![Page 65: Sense review](https://reader036.vdocuments.us/reader036/viewer/2022062308/558e355a1a28abf63f8b46d3/html5/thumbnails/65.jpg)
5. The optic nerve sends
messages to the brain
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6. The cornea is
the transparent part of the eye.
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7. The eyelids prevent
foreign objects from entering the eye.
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8. The iris may be
blue or brown in colour.
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9. The size of the pupil is controlled by
the iris.
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10. The thickness of the lens is controlled by
focusing muscle
![Page 71: Sense review](https://reader036.vdocuments.us/reader036/viewer/2022062308/558e355a1a28abf63f8b46d3/html5/thumbnails/71.jpg)
Identify the function
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1. Pinna
Collect sound waves
![Page 73: Sense review](https://reader036.vdocuments.us/reader036/viewer/2022062308/558e355a1a28abf63f8b46d3/html5/thumbnails/73.jpg)
2. Ear canal
Facilitates the travelling of sound waves
![Page 74: Sense review](https://reader036.vdocuments.us/reader036/viewer/2022062308/558e355a1a28abf63f8b46d3/html5/thumbnails/74.jpg)
3. Ear bones
Transmit the vibrations and magnify them
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4. Eardrum
Changes sound waves into vibrations
![Page 76: Sense review](https://reader036.vdocuments.us/reader036/viewer/2022062308/558e355a1a28abf63f8b46d3/html5/thumbnails/76.jpg)
5. Auditory nerve
Carries the message to the brain
![Page 77: Sense review](https://reader036.vdocuments.us/reader036/viewer/2022062308/558e355a1a28abf63f8b46d3/html5/thumbnails/77.jpg)
6. Cochlea
Detects vibrations and changes them into a message
![Page 78: Sense review](https://reader036.vdocuments.us/reader036/viewer/2022062308/558e355a1a28abf63f8b46d3/html5/thumbnails/78.jpg)
Multiple Choices
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1. Which of the following matchings between sense organs and receptors is correct?A. Eye LensB. Ear Ear-drumC. Nose NostrilsD. Tongue Taste buds
D
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2. Which of the following apparatus can be used to observe tiny objects?
(1) Magnifying glass(2) Telescope(3) Microscope
A. (1) and (2) only.B. (1) and (3) only.C. (2) and (3) only.D. (1), (2) and (3)
B
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3. Which of the following eye defects can be corrected by wearing suitable glasses?
(1) Astigmatism(2) Short sight(3) Long sight(4) Colour blindness
A. (1) and (2) onlyB. (2) and (3) only C. (1), (2) and (3) onlyD. (1), (2), (3) and (4)
C
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4. Which of the following is/are correct methods of protecting the eyes?
(1) Eating enough food that contains vitamin A(2) Using distilled water to wash the eyes
everyday(3) Reading under intense light(4) Avoiding sitting in front of the computer
monitor for a long timeA. (1) and (4) only C. (2), (3) and (4) onlyB. (1), (2) and (4) only D. All of these
A
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5. Which structure of the eyeball is related to the formation of short sight and long sight?A. Pupil C. LensB. Iris D. Retina
C
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6. Which of the following structures contain/s light sensitive cells?
(1) Retina(2) Lens(3) Iris
A. (1) only C. (2) and (3) onlyB. (1) and (3) only D. All of these
A
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7. If we are seeing a car that approaches us slowly, what changes will occur to the structures of the eyeball below?A. Contracts becomes thickerB. Contracts becomes thinnerC. Relaxes becomes thickerD. Relaxes becomes thinner
A
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8. Astronauts cannot talk to each other in space becauseA. there is no air.B. all the sound energy loses to the space.C. the astronaut cannot move properly in space.D. the sound is absorbed by the space.
A
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9. Which of the following options are needed to achieve a full sense of balance?
(1) Semicircular canals(2) Medulla(3) Cerebellum
A. (1) only C. (1) and (3) onlyB. (3) only D. All of these
D
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10. All of the following structures enable the detection of sound vibrations?A. Pinna C. Ear bonesB. Ear canal D. Cochlea
D
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11. Which of the following functions of the ear bones is/are correct?
(1) To transmit the sound vibrations(2) To amplify the sound vibrations(3) To support the ear drum
A. (1) only C. (1) and (2) onlyB. (2) only D. All of these
C
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12. Which of the following structures carries message directly to the brain?A. Auditory nerve C. Ear bones B. Cochlea D. Eardrum
A
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13. A person suffering from a cold cannot taste food properly becauseA. the tongue is damaged.B. the tongue is covered by a layer of white substance.C. the medicine stops the sense of taste.D. the sense of smell and the sense of taste have to work together to detect the flavour of food.
D
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14. Which of the following parts of a mammal is NOT sensitive to touch?A. skin C. NailB. Tongue D. Nose
C
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15. Which of the following is/are the harmful effect(s) of drug abuse?
(1) unable to concentrate(2) damage to the brain(3) damage to memory and response
A. (2) only C. (2) and (3) onlyB. (1) and (2) only D. All of these
A
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Good Luck!!!