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Selangor Trial 2023 Science Kertas 1 · Set 2

1
Which of the following substance should not be thrown into the sink?
2
Among the following, which one is true about fire blankets?
3
What causes an individual's condition to require CPR?
4
A nurse wants to measure the body temperature of a baby using a rectal thermometer. What is the correct sequence of techniques for using a rectal thermometer? - Leave it until you hear a 'Beep' sound and record the temperature reading - Insert the thermometer into the baby's rectum about 1.5 - 2.5 cm - Apply petroleum jelly to the thermometer tip
5
Diagram 1 shows the blood pressure reading of an adult woman. What is the woman's blood pressure category?
6
Which of the following is a non-renewable energy source?
7
Diagram 2 shows a socio-scientific issue in sector Y. One of the adverse effects of this activity is the occurrence of landslides and the extinction of flora and fauna. Which of the following is a Green Technology application that can deal with the issue effectively?
8
Diagram 3 shows an environmentally-friendly mode of transport. Why is the single occupant vehicle in that position?
9
The X structure in a cell is the basic hereditary unit that determines an individual's characteristics. What is structure X?
10
Diagram 4 shows the inheritance mechanism of monohybrid crossing for the ability to roll tongue. Key: B - Able to roll tongue b - Unable to roll tongue What is the genotype and phenotype for Y?
11
Among the following, what is the symptom of thalassemia?
12
Ali is the eldest of five siblings. He has a height problem where he is shorter than his siblings. What is the most effective way to help Ali get the ideal height?
13
Diagram 5 shows the joint structure of the knee. What is X?
14
Which of the following hormones is secreted by the ovary?
15
Diagram 6 shows the arrangement of matter for a substance. What is the type of the substance?
16
What is the main component in glass?
17
Diagram 7 shows a process occurs naturally inside a body. What is the effect when more Molecule X are produced in the body?
18
Diagram 8 shows the motion graph of Ali's car in a certain period of time. Based on Diagram 8, Ali has gone to the store to buy goods. Which of the following indicates a true statement?
19
Which of the following refers to the quantity of matter in an object?
20
Diagram 9 shows an electrical energy production reactor. Based on Diagram 9, why is this energy source a choice as an alternative source of electricity?
21
Which of the following microorganisms is a group of protozoa?
22
Which microorganisms can be used in vaccine production?
23
Diagram 10 shows the condition of a type of plant. What is the nutrient deficiency shown on the leaves?
24
Which of the following is true to increase the resources, quality and quantity of the country's food production?
25
Ahmad wants to export durian flesh to China. What is the best processing method to keep it fresh?
26
Which of the following is true about health supplement related issue?
27
Table 1 shows the usage information of four types of lamps. Given, Electricity used in a day = Power of electrical lighting device (kW) × Frequency of use of electric lighting devices in a day (h) Amount of carbon dioxide released (g) = \frac{Electricity used (kWh) \times 39 g}{50 kWh} (Assumption : The use of 50 kWh of electricity produces 39 g of carbon dioxide) Among the following, which type of lamp emits the most amount of carbon dioxide gas during its use?
28
Which of the following is true about environmental pollution and its causes?
29
Diagram 11 shows the activities performed during the celebration. What type of reaction has taken place?
30
Diagram 12 shows the production process of a type of chemical in industry. Among the following, what is the function of vanadium(V) oxide powder in the above reaction?
31
Which of the following are examples of an inorganic carbon compound?
32
Which of the following process is used to separate petroleum fractions?
33
Diagram 13 shows the structure of a product produced from palm oil. What is the function of part Q?
34
An electrolyte is a substance that can conduct electricity. What is an example of a correct electrolyte?
35
Diagram 14 shows a simple cell. What is metal Y?
36
Diagram 15 shows a type of lens. Which of the following are the characteristics of an image formed if an object is placed 25 cm from the lens?
37
A company that manufactures electronic devices wants to develop a type of DSLR camera that produces images with a wider field of view. What is the characteristic of the lens that is suitable for use?
38
Diagram 16 shows a hydraulic system. If the force exerted on piston S is 150 N, what is the output force produced on piston T?
39
Diagram 17 shows the types of satellite orbits. What is X?
40
What is the use of Global Positioning System (GPS) in navigation system?
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