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Kedah Trial 2022 Sains Kertas 1

1
Diagram 1 shows the biological waste material categorised as non-sharp solid waste. What is the correct method to manage that biological waste?
2
A small fire has occurred due to a short circuit. Which fire extinguisher is suitable to be used to put out the fire?
3
Diagram 2 shows the correct CPR method for an adult. What is step X?
4
Diagram 3 shows a few of pulse points on the human body. Which of the points A, B, C or D is most easily detected by medical assistant to measure the pulse rate?
5
Diagram 4 shows an individual using an instrument to measure his blood pressure. Which of the following shows the correct reading?
6
The burning of fossil fuels produces gas X which causes the greenhouse effect. Which of the following is the effect of an increase in gas X in the atmosphere?
7
Food leftovers that are not properly disposed causes environmental pollution. Which of the following methods can reduce environmental pollution as a result of increased disposal of food waste?
8
Diagram 5 shows process P that takes place in meiosis. What is the importance of process P?
9
Diagram 6 shows the parental phenotypes and the offspring genotypes of one species of mice. H represents the dominant gene for black mice while h represents the recessive gene for white mice. What is the parental genotypes?
10
Diagram 7 shows the endoskeleton of a bird. What is X?
11
Diagram 8 shows a type of plant that has structure tendrils. What is the purpose of the wooden trellis?
12
Aiman has acromegaly that is abnormal growth due to excessive secretion of hormone. What is the hormone?
13
The following information shows the effects of using a drug. - Sleepy - Less anxious What is the drug?
14
The electron arrangement of atom K is 2.8.3. What is the number of protons in atom K?
15
Diagram 9 shows part of the Modern Periodic Table of the Elements. Which A, B, C and D can form positive ion?
16
Diagram 10 shows an object made of alloy S. What is the main metal in alloy S?
17
Drug Q is produced from fungi. What is the example of drug Q?
18
Diagram 11 shows a colour changes on the surface of the apple. Why did the apple slice become brown?
19
Diagram 12 shows a part of the ticker tape of a trolley moving down the track. What is the type of motion of the trolley?
20
Alias drives the car at a speed of 30 m s⁻¹. He increased the speed of the car until it reached a speed of 60 m s⁻¹ in 20 seconds. What is the acceleration of the car? Acceleration = \frac{Final velocity - Initial velocity}{Time taken}
21
Diagram 13 shows a process occurs in a nuclear reactor. Why the process known as a chain reaction?
22
The effects of radiation spread from nuclear tests can have adverse impact on human health. Which of the following effects of radiation will continue to remain inherited?
23
Diagram 14 shows a type of microorganism. Which of the following statements describes the characteristics of the microorganism?
24
Diagram 15 shows a vaccine injection given to an adult male. Substance X is applied to the male's arm before the injection is given. What is substance X?
25
Table 1 shows menu for breakfast taken by Aufi. | Food | Total intake (g) | Calorific value (kJ g⁻¹) | | Bread | 50 | 10.60 | | Butter | 5 | 31.20 | | Milk | 50 | 13.70 | | Egg | 10 | 6.59 | | Orange | 10 | 1.50 | What is the total calorific value taken by Aufi?
26
Food colouring always being used to make the food becomes more attractive. Which of the following is the example of food colouring?
27
Mr. Alif went to the electrical shop to buy light bulbs to replace the broken bedroom lights. The seller at the store has provided four types of light bulbs that have different powers. Which of the bulbs is suitable to reduce carbon dioxide emissions? The amount of carbon dioxide released (g) = \frac{Power x Time (kWj)}{50 kWj} x 9g (Assumption: A usage of 50 kWj of electrical energy produces 39 g carbon dioxide)
28
Air pollution can be caused by human acts or occurs naturally. Which of the following is the natural cause of the air pollution?
29
1.0 g of zinc powder is reacted with excess dilute nitric acid. The maximum volume of hydrogen gas collected is 48 cm^3 in 10 seconds. Calculate the average rate for the whole reaction in cm^3 s^-1. Average rate of reaction = \frac{Total volume of hydrogen gas collected}{Time of reaction}
30
Table 2 shows the result of the experiment for a reaction between zinc and dilute hydrochloric acid at 30 °C. | Conical flask | Mixture in the conical flask | Time taken to collect 30.00 cm^3 of gas (s) | |---|---|---| | V | Zinc granule + dilute hydrochloric acid | 150 | | W | Zinc granule + dilute hydrochloric acid + copper(II) sulphate solution | 70 | What cause the differences in time taken to collect 30.00 cm^3 of gas in conical flask V and W?
31
Diagram 16 shows the properties of compound Y. What is the chemical formula for compound Y?
32
Diagram 17 shows a laboratory experiment carried out by a student to produce substance Z. Substance Z is produced from the fermentation process by adding the yeast into the foods containing glucose. Substance Z is used to produce a type of beverage. What are the adverse effects if a drink containing substance Z is taken excessively?
33
Diagram 18 shows a process that occurs in an electrolytic cell. What is Q?
34
Diagram 19 shows a setup of the apparatus for a chemical cell. What will happened at the negative terminal?
35
The following information shows the characteristics of an image formed by an optical instrument - Maya Virtual - Tegak Upright - Dikecilkan Diminished What is the optical instrument?
36
Diagram 20 shows the formation of an image in a telescope. In normal adjustment, the distance between the objective lens and eyepiece is 30 cm. The focal length of the eyepiece is 4 cm. What is the focal length of the objective lens? Distance between the objective lens and eyepiece = f_o + f_e
37
Diagram 21 shows a hydraulic system used to lift a car. How much car weight can be supported by a force of 20 N? Pressure = \frac{Force}{Area}
38
When the fluid passes through a narrow area, the velocity fluid will increase and pressure in the area decrease. The principle that relates the velocity of a fluid to the pressure it produces is
39
Diagram 22 shows position of four satellites while orbiting the Earth. Which of A, B, C and D shows the position of Apogee?
40
Diagram 23 shows a screenshot of Google Maps. What type of information in Diagram 23 is sent from a GPS satellite to a GPS receiving device?
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