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Perlis Trial 2022 Sains Kertas 1

1
Diagram 1 shows a personal protective equipment used in a laboratory. What is the function of this equipment?
2
Sodium, magnesium and potasium are metals. Which of the following fire extinguisher is most suitable to put out these metals fire.
3
According to a statement made by American Heart Association in 2016, the method of chest compression during CPR can save the victim's life. Steps are as follows: | P | Place the heel of one hand on the centre of the victim's chest. | | Q | Rise and lean your body to the front slightly with your shoulders vertically above the victim's chest and press down at least 5 cm. | | R | Release the compression with your hands still on the victim's chest. | | S | Ensure that your arms are straightened, cover the first hand with your other hand and interlock your fingers. | | T | Allow the victim's chest to return to its normal position before performing another compression. | Which of the following are the correct steps for chest compressions?
4
An individual is eating rambutan in his orchard. Suddenly, he accidently swallowed and choked on the rambutan seed. What is the best way to save himself from choking when there is no one around him to help.
5
Table 1 shows the reading of the blood pressure of three students. | Students | Blood pressure (mmHg) | |---|---| | Ahmad | 155 / 95 | | Ali | 130 / 89 | | Amran | 110 / 70 | Table 1 What statement can be made according to the blood pressure reading of the students?
6
Information below is extracted by a student while carried out the "SEGAK" test in school. - Body mass = 80kg - Height = 170cm BMI = Body Mass (Kg) (Height)^2 (m)^2 State the category of this student according to the Body Mass Index Chart.
7
The following information shows the application of Green Technology to overcome socio-scientific issues in the waste and wastewater management sector. - Control paper usage by recycling paper - Prepare sufficient food for the whole family to prevent food wastage Based on the above information, which aspect are relevant in the application of Green Technology?
8
Which of the following chromosomes is found in the skin cells of a man?
9
Diagram 2 shows the karyotype a genetic disease. What is this disease?
10
Diagram 3 shows a red hibiscus and a white hibiscus that each have Rr gene and rr gene. R and r represent genes that control hibiscus color. What is the ratio of red hibiscus to white hibiscus in the first generation, F1?
11
Auni and Amni is a pair of identical twins are living apart for many years. Auni is brought up in London while Amni is brought up in Malaysia. In which of the following characters might they show a difference?
12
The information below shows the function of one component of the joint. - To absorb pounding - Protect the joint What is the component of the joint that has the above function?
13
Diagram 4 shows a type of root. Which of the following plants has roots as above to support?
14
Diagram 5 shows the endocrine glands of humans. Which gland A, B, C or D secretes adrenalin hormone ?
15
Which types of drugs increase the activity in the body causes user feels more confident and alert?
16
Which of the following is an atomic substance?
17
Diagram 6 shows an incomplete Modern Periodic Table of Elements. Which element has the proton number 5?
18
How can gamma rays be used to preserve food?
19
Diagram 7 shows the arrangement of atoms in steel. What is atom X?
20
Diagram 8 shows the formation of a substance | Perspex | Process X | Methyl methacrylate | |---|---|---| What is process X?
21
Diagram 9 shows the product from Mr Daniel's rubber plantation. Mr. Daniel wants to export the latex in liquid form abroad. After collecting the latex in a container, the latex coagulate. How can he overcomes this problem?
22
Which of the following is the characteristic of complementary medicine?
23
Encik Rahmat drives from Pahang to Kuala Lumpur for a distance of 220 km in 2 hours. What is the average speed of the car? | Velocity = | Distance | |---|---| | | Time |
24
Diagram 10 shows the free fall of a coconut fruit. Which of the following shows the graph of a free fall object?
25
Diagram 11 shows the process of P. What is process P?
26
Diagram 12 shows a type of disease that caused by pathogen. Which of the following can be used to treat the disease?
27
Table 2 shows the calorific value of different types of food. | Food | Calorific value / kJ g^-1 | |---|---| | Rice | 15.10 | | Chicken | 8.52 | | Cabbage | 0.35 | | 1 slice of papaya | 0.40 | Azman takes lunch which consists of 20g rice, 25g chicken, 50g cabbage and 30g papaya. Calculate the total calorific value taken by him.
28
Diagram 13 shows part of a nitrogen cycle. What are process K and L? | | K | L | |---|---|---| | A | Denitrification | Nitrification | | B | Nitrification | Decomposition | | C | Decomposition | Nitrification | | D | Nitrogen fixation | Denitrification |
29
Diagram 14 shows plant R experiencing normal growth while plant S show stunted growth due to a lack of a type of nutrient. The absence of substance X may cause plant S to be stunted, what is X?
30
Diagram 15 shows a symbol. Which of the following is a proces to reduce the emission of green house gasses?
31
Which of the following is an example of an upcycle product?
32
Diagram 16 shows a graph of the volume of hydrogen gas against time in the reaction of zinc and hydrochloric acid. Based on the graph in Diagram 16, what is the average rate of reaction?
33
Which of the following is an inorganic carbon compound?
34
In the distillation of pure ethanol, why is the distillation occurs at 78°C?
35
Diagram 17 shows two apparatus set up, P and Q, to study factor that affects electrolysis process done by a student. Which of the following is produced at the anode of P and Q? | | P | Q | |---|---|---| | A | Copper | Copper | | B | Hydrogen | Copper ion | | C | Oxygen | Copper ion | | D | Copper ion | Copper |
36
Diagram 18 shows two types of simple cells, cell X and cell Y. Which of the following statements is true?
37
Diagram 19 shows an incomplete ray diagram. Which of the following is true about the characteristics of the image formed?
38
Diagram 20 shows a cross-section of an aeroplane wing during take-off. Which of A, B, C or D shows a slower air flow?
39
Diagram 21 shows a hydraulic system. What is the pressure produced by piston X? [Pressure = \frac{Force}{Surface area}]
40
The following information is about the orbit of satellite Q. The height of the orbit is 35,786 km Orbital plane at the equator What is orbit satellite Q?
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