Thursday, May 28, 2009

LATIHAN MASA CUTI JUNE : SCIENCE FORM 3

SMK TINGGI BUKIT MERTAJAM

LATIHAN MASA CUTI JUNE : SCIENCE FORM 3

NAME: ............................................................... CLASS : ...........................

1.


The above diagram shows the cross-section of the human ear.


(a)

Name the nerve that sends impulses to the brain.


(b)

State the functions of the parts labelled with W, X, Y and Z.



W :



X :



Y :



Z :


(c)

State the two parts of the ear that do not play any role in the hearing mechanism.

2.


The above diagram shows the areas of a human tongue that are sensitive to different tastes.


(a)

Name the part of the tongue that has groups of taste receptors.


(b)

State the tastes that stimulate area K, L, M and N.



K :



L :



M :



N :


(c)

(i) Name the sense that helps the sense of taste.



(ii) Explain how the answer in (c)(i) can help the sense of taste.

3.


The above diagram shows the human digestive system.


(a)

Name the parts labelled P, Q, R and S.



P :



Q :



R :



S :


(b)

(i) What is produced by part Q?



(ii) Based on the answer in (b)(i), state one of its functions.


(c)

(i) Which part does digestion ends?



(ii) State the end product of protein, starch and fats.

4.


(a)

What are groups S, T and U?











(b)

(i) Give two examples of animals in group U.



(ii) State how these animals respire.


(c)

State one difference and one common characteristic between animals in the group U and animals in the group of amphibian.

5.

The above diagram shows two organisms in an ecosystem.


(a)

State the type of interaction between the two organisms.


(b)

Define the relationship mentioned in (a).

__________________________________________________________________________________

__________________________________________________________________________________


(c)

Give three characteristics that can help the prey to escape from its predator.










6.

The above diagram shows an experiment on the electrolysis of water.


(a)

What is the element of water?


(b)

Define electrolysis.

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(c)

Based on the above diagram,



(i) what is gas Y?



(ii) What will happen when gas X is tested with a burning wooden splinter?



(iii) What is the ratio of volume of gas X and Y collected at cathode and anode?

7.

The above diagram shows object P and Q in different position.


(a)

(i) Which object is more stable?



(ii) Explain your answer in (a)(i).

__________________________________________________________________________________


(b)

Give one example of a product that applies the above theory in its design.

8.

The above diagram shows a wheelbarrow that is carrying 800 N load.


(a)

State the class of lever of the above object.


(b)

Calculate the effort to lift the load.