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SMJK CHONG HWA (CF)JALAN GOMBAK

53000 KUALA LUMPUR

UJIAN 1

SCIENCE

TINGKATAN 2

1 JAM

Nama:______________________ Tingkatan : _____________

SECTION A

For question 1-15, choose the best answer for every question. Mark the answers on the answer

sheet given.

1. Which of the following is a sensory organ?A. The brain C. The skin

B. The heart D. The lungs

2. Which stimulus cannot be detected by the skin?A. Pressure C. Light

B. Pain D. Heat

3. Food is less salty if a person

A. is constipated C. has beri-beri

B. catches a cold D. has anemia

4. The diagram shows the frontal view of the eye. What are parts J, K and L?

5. P, R and S are parts of the ear and Q is the brain.

The parts that control the bodys balance areA. Q and R C. P and S

B. P and R D. Q and S

6. Which part of the human eye prevents the internal reflection of light?A. Conjunctiva C. Choroid

B. Sclera D. Cornea

J K L

A. Iris Cornea Sclera

B. Iris Pupil Sclera

C. Pupil Iris Cornea

D. Pupil Iris Sclera

PCochlea QBrain R - Auditory Nerve S - Semicircular canals

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7. The diagram below shows two eyes of eyes defects. Which lenses are suitable for correcting eye

defects X and Y?

Defect X Defect Y

A. Concave lens Convex lens

B. Convex lens Concave lens

C. Cylindrical lens Convex lens

D. Concave lens Cylindrical lens

8. The sensitivity of the skin to stimulus does not depend on

A. the colour of the skinB. the thickness of the the epidermis

C. the number of impulses triggeredD. how closely packed are the receptors.

9. Which of the following senses enables the blind people to read in Braille?

A. Sense of smell C. Sense of touchB. Sense of hearing D. Sense of sight

10. Which statement is correct about the diagram below.

A. Light travels in a straight line C. Light is reflected on the surface of water

B. Light is refracted in the water D. Light is dispersed into a spectrum

11. A student spins around. When he stops, he feels as is the objects around him are still moving.

Which of the following is responsible for this condition?A. Eardrum C. Cochlea

B. Eustachian tube D. Semicircular canals

12. Which statement about the sense of taste is not correct?

A. The tongue is the sensory organ for taste.B. Only food that dissolves in saliva can be detected by the tongue.

C. The sense of taste is influenced by the sense of smell.

D. The tongue only can detect sweet, salty, sour and bitter tastes.

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13. Which of the following diagrams shows the normal vision of a person?

14. Which of the following properties of light is not true?

A. Light travels in straight line within different mediums.

B. Light is a form of energyC. Light can be reflected.

D. Light can be refracted.

15. Astigmatism is a kind of defective vision. Which of the following can be used to correct it?A. Bifocal lenses C. Concave lenses

B. Cylindrical lenses D. Convex lenses

SECTION B

Answer all the questions in this section. Mark the answers on the answer sheet given.

1. Figure 1 shows the cross section of the human skin. Label the following parts K, L, M, P and R.

(5 marks)

2. Fill the following boxes to show the correct pathway on how a person hears.

(5 marks)

A.

D.B.

C

Sound V Auditor Canal W

XYCochleaZ

Brain

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3. The following are the different parts of the human eyes. Draw a line to match the parts to its correctfunction. Mark your answers as I, II, III, IV and V on the answer sheet.

a.

b.

c.

d.

e.

(5 marks)

4. Fill in the blanks for the following questions with the following terms.

a. The phenomena of what is seen is different from the real situation is known as______________.

b. _________________ is the type of vision using both eyes to see objects.c. Long- sightedness can be corrected by using ____________ lens.d. The speed of light _____________ when light enters a denser medium.e. Shortsightedness can be corrected by using ___________ lens.f. When light travels from a dense medium to a less dense medium, light will be refracted away

from the _____________ .

g. A kaleidoscope uses property of light that is ______________ to function.h. Light travels in a ______________ path.i. Light can be _____________ and ________________.

(10 marks)

Retina

Cornea

Yellow Spot

Sclera IV. The part of the retina that is most sensitive to light.

III. Receives light stimuli and sends information in the

form of nerve impulses to the brain

II. Controls the size of the pupil and the amount of light

enterin the e e.

I. Allows light to enter the eye and helps to focus light

onto the retina.

IrisV. Forms a protective layer around the eyeball

Straight concave convex stereoscopic decreases

normal reflection refracted reflected optical illusion

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ANSWER SHEET

Name:______________________ Form : _____________

SECTION A

1. A B C D 9. A B C D

2. A B C D 10. A B C D

3. A B C D 11. A B C D

4. A B C D 12. A B C D

5. A B C D 13. A B C D

6. A B C D 14. A B C D

7. A B C D 15. A B C D

8. A B C D

SECTION B

1. K - _____________________ L - _____________________

M - _____________________ P - _____________________

Q - _____________________

2. (a) ______ (b) _______ (c) ______ d) ______ (e) ________

3. V - ______________________ Y - ______________________

W - _____________________ Z - ______________________

X - ______________________

4.

a. _______________________________ f. _______________________________

b. _______________________________ g. _______________________________

c. _______________________________ h. _______________________________

d. _______________________________ i. _______________ , ______________

e. _______________________________