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Putrajaya Trial 2023 Sains Kertas 1 · Set 2

1
What is the pH value of the waste material that can be thrown into the sink?
2
Study the following situation > A small fire has occurred in the laboratory while handling magnesium. What type of fire extinguisher is the most suitable to be used to put out the fire?
3
Which groups may need CPR assistance?
4
While performing Heimlich Maneuver, the area between the navel and below the ribs need to be pressed and jerked upwards with quick force. Why is that action taken?
5
Diagram 1 shows a laboratory thermometer. State the function of a thin bulb in a laboratory thermometer.
6
Diagram 2 shows a doctor taking the pulse of a patient. If the doctor took 100 pulses in 1 minute and 20 seconds, what is the pulse rate of the patient?
7
Diagram 3 shows the mode of green transportation. Why is X located highest in the mode of green transportation?
8
Study the following statement. > A farmer experiences soil acidity and pest attack problems in his farm. He wants to change the method for his next planting without contaminating the soil. What should be done by the farmer?
9
Diagram 4 shows a karyotype of an individual suffering a genetic problem. What is the genetic disorder of individual P?
10
Jamil's mother and father are healthy individuals. Why?
11
Diagram 5 shows an earthworm and a jellyfish. What is the support system for the animal species?
12
Diagram shows glass tube J and glass rod K representing two types of bones in two different animals. Which of the following animals has a skeleton represented by glass tube J?
13
Diagram 7 shows the endocrine glands of a teenage boy. Which gland A, B, C or D is known as the master gland?
14
Table 1 shows the effects of under and over secretion of hormone X. | Under secretion | Over secretion | | Intolerance to cold | Protruding eyeballs | What is hormone X?
15
Atoms are made up of subatomic particles, which are:
16
Which of the following is an atom?
17
A substance contains the component of silica. What is the substance?
18
Badrul is a rubber tapper. He found the latex had coagulated before reaching the factory. What can be done to avoid coagulation of the latex?
19
Which of the following statements is true about antibiotics?
20
Which of the following are priorities to consider when choosing a health product?
21
The following information describes a situation. > A passenger who was standing in a moving bus was thrown and fell forward when the bus driver suddenly pressed the brakes. What caused the passenger to be thrown and fell forward?
22
Salman drives a car at a speed of 30 m s^-1. He speeds up the car until it reaches the speed of 60 m s^-1 in 20 minutes. What is the acceleration of the car?
23
What are the advantages of using nuclear energy over fossil fuels?
24
Which of the following are grouped in the same group?
25
Microorganism P is used in the making of bread. What is microorganism P?
26
Diagram 8 shows the wet clothes hanging on the clothing lines during cloudy days. Why do the clothes become smelly?
27
Diagram 9 shows part of the nitrogen cycle. What are processes P and Q?
28
Diagram 10 shows a group of food. What is the function of the food?
29
Which activity contributes to the preservation and conservation of the environment?
30
The following shows two sources of water pollution. - Untreated sewage - Oil spillage Which of the following is due to the sources of water pollution above?
31
Study the following statement. > Charcoal flakes burn faster than charcoal chunks What factors affect the above reaction rate?
32
Why is vanadium (v) oxide used in the Contact Process?
33
Lily wants to cook meat in a shorter time. Which of the following is the best method that Lily can do?
34
Which of the following is an organic carbon compound?
35
Diagram 11 shows the structure of a soap molecule. Which of the following is correct about Y and Z when soup is used to clean greasy stains?
36
What is a cation ?
37
Which of the following is the use of chemical cells ?
38
State one of the characteristics of an image formed by a concave lens?
39
Which of the following works on Bernoulli's principle?
40
What is the function of the International Space Station (ISS)?
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