18 What is meant by space weather? A The phenomena that occur in all the stars in the universe B The phenomena that occur on the surface of the Earth and outer space C The phenomena that occur on the surface of the Sun and outer space D The phenomena that occur on the surface of the Sun thus affecting the Earth 19 Which of the following is an application of remote sensing technology? A A communication device that connects two farthest regions on the Earth’s surface B A device sent to outer space to record solar activity that can affect the Earth C A survey device that is wider than the spectrum of the human eyes without being in the area D A communication tool used to connect people on the Earth’s surface and in outer space 20 Diagram 8 shows the first device invented to observe objects in outer space. Diagram 8 What is the name of the device and who created it? Device Figure A Star binoculars Edmund Halley B Micro satellite William Herschel C Space clock Hans Lippershey D Telescope Galileo Galilei (UASA) Form 3 U4 F3 RC SC UA(1-14).indd 4 3/4/2023 5:10:43 PM PENERBIT ILMU BAKTI SDN. BHD
(UASA) Form 3 Section B [20 marks] Instruction: Answer all questions. 1 Diagram 1 shows the respiratory structure of a grasshopper. Trakeol Spirakel Tracheole Spiracle Diagram 1 (a) Name the respiratory structure based on each function below. Respiratory structure Function (i) Tiny pore that allows air to enter and leave the trachea. (ii) A channel that carries respiratory gases to the cells for the process of gaseous exchange. [2 marks] (b) Complete the bubble map below on the characteristics of tracheoles. Large surface area Characteristics of tracheoles (ii) (i) [2 marks] U5 F3 RC SC UA(1-14).indd 5 3/4/2023 5:10:43 PM PENERBIT ILMU BAKTI SDN. BHD
2 Solid elements or compounds found in the Earth’s crust are known as minerals. (a) Which of the following are elements? Tick (3) the boxes provided. Bauxite Tin Magnesium Cassiterite [2 marks] (b) Match each compound to the elements that form it. Compound Elements (i) Hematite Iron and oxygen Magnesium and oxygen (ii) Galena Lead and sulphur [2 marks] 3 (a) There are two types of transformers, step-up transformer and step-down transformer. Match each diagram to the correct type of transformer. Primary coil Secondary coil Primary coil Secondary coil Step-up transformer Step-down transformer (i) (ii) [2 marks] (UASA) Form 3 U6 F3 RC SC UA(1-14).indd 6 3/4/2023 5:10:43 PM PENERBIT ILMU BAKTI SDN. BHD
(UASA) Form 3 (b) Diagram 2 shows two parts of a 3-pin plug which are not labelled. Complete Diagram 2 with the correct words. Neutral wire Fuse (ii) (i) Diagram 2 [2 marks] 4 (a) Subatomic particles are divided into three types, namely protons, electrons and neutrons. Label the subatomic particles in Diagram 3 based on their charge. Neutron Charge: Neutral (i) Charge: Negative (ii) Charge: Positive Diagram 3 [2 marks] (b) Mark () for the true statement and (7) for the false statement about positive ions. (i) Positive ions are atoms that receive electrons from another atom. (ii) Positive ions are also known as cations. [2 marks] U7 F3 RC SC UA(1-14).indd 7 3/4/2023 5:10:44 PM PENERBIT ILMU BAKTI SDN. BHD
5 Diagram 4 shows two Solar System models, namely the geocentric model and the heliocentric model. Model geosentrik Geocentric Heliocentric model Model heliosentrik Diagram 4 (a) Based on Diagram 4, name the model built by the astronomers below. (i) Copernicus (ii) Ptolemy [2 marks] (b) Underline the correct answers about the Solar System model built by Kepler. (i) The orbits in the Solar System are ( elliptical / circular ). (ii) The centre of the Solar System is the ( Sun / Earth ). [2 marks] Section C [60 marks] Instruction: Answer all questions. 1 (a) Diagram 1.1 shows Razif and Anita jogging in a park during the COVID-19 pandemic. Anita Razif Diagram 1.1 (UASA) Form 3 U8 F3 RC SC UA(1-14).indd 8 3/4/2023 5:10:44 PM PENERBIT ILMU BAKTI SDN. BHD
(UASA) Form 3 (i) In your opinion, which individual jogs the right way? Explain your answer. [3 marks] (ii) Razif wanted to prevent himself from being infected with COVID-19, so he wore a thick face mask made of plastic. Describe the effect of wearing the face mask on the exchange of carbon dioxide in the alveoli. [3 marks] (b) Diagram 1.2 shows the exchange of respiratory gases, which are oxygen and carbon dioxide between an alveolus and a blood capillary. Oksigen Karbon dioksida Oxygen Carbon dioxide Diagram 1.2 State two adaptations of the alveolar structure that affect the efficiency in the exchange of respiratory gases. [2 marks] 2 (a) Diagram 2.1 shows the actions of two individuals, P and Q. tv10 P Q Diagram 2.1 Based on Diagram 2.1, explain the actions of individuals P and Q based on the work done. [2 marks] U9 F3 RC SC UA(1-14).indd 9 3/4/2023 5:10:44 PM PENERBIT ILMU BAKTI SDN. BHD
(b) Diagram 2.2 shows Amira pulling a trolley filled with books weighing 10 kg at a distance of 4 metres. 4 m 10 kg Diagram 2.2 (i) Based on Diagram 2.2, state the direction of force acting on the trolley. [1 mark] (ii) State the formula for calculating the work done. [1 mark] (iii) How much work is done by Amira? (Assume gravitational force acting on an object of mass 1 kg is 10 N) [2 marks] (iv) Amira has added some books weighing 5 kg onto the trolley. She pulled the trolley over a distance of 4 metres. Is the work done by Amira the same as the work done in 2(b)(iii)? Explain your answer. Analysing [2 marks] 3 Diagram 3 shows the cross-section of the human head. P: Q: Diagram 3 (a) Name the structures labelled P and Q in Diagram 3. [2 marks] (b) The nose is the sensory organ of smell. (i) What is the stimulus for the sensory organ of smell? [1 mark] (ii) Describe how humans can identify different types of smells. Analysing [2 marks] (UASA) Form 3 U10 F3 RC SC UA(1-14).indd 10 3/4/2023 5:10:44 PM PENERBIT ILMU BAKTI SDN. BHD
(UASA) Form 3 (c) A boy feels that the food he consumes is less tasty when there is an accumulation of thick mucus in his nasal cavity. [3 marks] (ii) Describe how the sense of smell of a person can affect the sense of taste. Analysing [1 mark] (iii) Name one substance produced in the mouth that helps dissolve chemical substances in food. [1 mark] 4 Space weather refers to phenomena that occur on the surface of the Sun and in outer space. (a) Name one phenomenon that occurs (i) on the surface of the Sun: (ii) in outer space: [2 marks] (b) Diagram 4 shows three effects of disturbances on the systems on Earth due to space weather. R S T Diagram 4 (i) State the types of systems based on Diagram 4. [3 marks] (ii) State one effect of the disturbances on each system stated in 4(b)(i). [3 marks] (c) Aurora is a beautiful display of lights in the sky at the north and south poles that is also associated with space weather, resulting from the activity of the Sun. (i) Name the phenomenon that causes the aurora. [1 mark] (ii) To your opinion, what is the effect of the formation of the aurora on economy? [1 mark] U11 F3 RC SC UA(1-14).indd 11 3/4/2023 5:10:45 PM PENERBIT ILMU BAKTI SDN. BHD
5 Diagram 5 shows a potted plant placed inside the house. Diagram 5 (a) State the part of the plant that shows (i) positive geotropism (ii) positive phototropism (iii) positive hydrotropism [3 marks] (b) State the type of responses shown by the plant based on your answers in 5(a). [1 mark] (c) What is the importance of the type of responses stated in 5(b) to plants? [1 mark] (d) Based on your knowledge of plant stimuli and responses, describe one method to make the stem of the plant in Diagram 5 bend to the left. You are provided with the following materials: • A large black box • Scissors Include a diagram in your description. Creating [3 marks] (e) There are some plants that show a positive response towards touch. (i) Name the response. [1 mark] (ii) Roots show a negative response towards touch. Discuss it. Applying [3 marks] (UASA) Form 3 U12 F3 RC SC UA(1-14).indd 12 3/4/2023 5:10:45 PM PENERBIT ILMU BAKTI SDN. BHD
(UASA) Form 3 6 Diagram 6.1 shows the cross-section of an organ of plants, which is the main place where transpiration takes place. Diagram 6.1 (a) (i) Name the organ shown in Diagram 6.1. [1 mark] (ii) X is the stoma, which is the structure that allows water vapour to diffuse out during transpiration. Label X in Diagram 6.1. [1 mark] (b) A group of students wanted to study the effect of air movement on the rate of transpiration. They have prepared two sets of the same apparatus as shown in Diagram 6.2. Kapas Pokok keembung Lapisan minyak Balsam plant Oil layer Cotton Diagram 6.2 (i) The first set of apparatus (labelled A) is placed under a fast-rotating fan. Suggest a suitable place to put the second set of apparatus (labelled B). Justify your suggestion. [2 marks] U13 F3 RC SC UA(1-14).indd 13 3/4/2023 5:10:45 PM PENERBIT ILMU BAKTI SDN. BHD
(ii) After one hour, the electronic balance in Set A showed a 35 g decrease in mass. Predict the decrease in mass shown by the electronic balance for Set B. Explain your answer. [3 marks] (c) Cactus plants that inhabit barren areas such as deserts have modified leaves shaped like thorns. State the importance of the feature. [2 marks] (d) Diagram 6.3 shows a balsam plant with white flower soaked in a blue ink solution. After twenty minutes, a blade is used to make a cross section of the stem. Pokok keembung Larutan dakwat biru Balsam plant Blue ink solution Diagram 6.3 (i) Shade the tissue that will be stained blue on the cross-section of the stem below. [1 mark] (ii) Based on the answer in 6(d)(i), explain your observation. [2 marks] (UASA) Form 3 U14 F3 RC SC UA(1-14).indd 14 3/4/2023 5:10:45 PM PENERBIT ILMU BAKTI SDN. BHD
A1 Answers Answers Form 1 Ujian Akhir Sesi Akademik (UASA) Section A 1 B 2 B 3 A 4 B 5 D 6 C 7 C 8 D 9 D 10 D 11 A 12 B 13 A 14 A 15 B 16 C 17 D 18 C 19 C 20 D Section B 1 (a) – Architecture is the study of design and structure of buildings. – Geology is the study of rocks and soil which form the Earth (b) (i) Ammonia (ii) Mercury 2 (a) X: Nucleus Y: Chloroplast (b) Cell wall – Maintains the shape of the cell Cell membrane – Controls substances that leave or enter the cell 3 (a) (i) The correction mechanism is activated (ii) The correction mechanism is deactivated (b) (i) decrease (ii) more 4 (a) P: Ovary Q: Fallopian tube R: Vagina (b) Testis – Produces sperms and male sex hormones Penis – An organ made up of soft tissues rich in blood vessels 5 (a) (i) Convex mirror (ii) Concave mirror (b) – Fixed at the base of the telescope – Used in dental mirrors Section C 1 (a) Pollination (b) (i) Process 1: Self-pollination Process 2: Self-pollination Process 3: Cross-pollination (ii) There is no variation in the offspring produced and the offspring inherits all the traits of the parent, including the unwanted traits. (iii) – Seedlings with new varieties are produced – Seedlings with better quality than the parents are produced such as producing more fruit, resistant to diseases and maturing faster (c) (i) Insects (ii) Brightly coloured, fragrant and produces nectar (iii) By keeping stingless bees, apart from getting honey, gardeners can reduce the use of pesticides and stingless bees also act as a pollinating agent. 2 (a) (i) Solid/Liquid/Gas (ii) Solid – has a fixed shape and volume Liquid – follows the shape of its container and has a fixed volume Gas – follows the shape and volume of its container (b) Gas particles are very far from each other and have a large space to move. (c) The volume of the mixed solution does not reach 100 cm3 because there is space between the liquid particles. The particles of solution X fill the space between the particles of solution Y. (d) When a substance undergoes a physical change, its mass does not change because the quantity of particles does not change when the substance is heated or cooled. Changes only occur in the kinetic energy of the particles of matter. F1-3 RC SC Answer(1-6).indd 1 3/4/2023 5:09:52 PM PENERBIT ILMU BAKTI SDN. BHD
A2 Answers 3 (a) The spectrum of light (b) When a beam of white light is passed through a glass prism, each of its component colours is refracted at a different angle because every colour travels at a different speed. As a result, white light separates into its seven component colours. This band of coloured light is called a spectrum (c) Raindrops act like a glass prism. When sunlight (white light) enters the raindrops, the sunlight will be refracted because it moves from the medium of air to the medium of water. Its component colours will be refracted and scattered at different angles. This scattered light undergoes total internal reflection before exiting the water droplet. These light rays are refracted again as they exit the water droplet. This causes a rainbow to form. (d) Midday Sunset When sunlight travels through the Earth’s atmosphere, it collides with dust and gas molecules. These gas molecules scatter sunlight in all directions. Violet, indigo and blue light are scattered the most because their wavelengths are shorter than red light. So, the sky looks blue. In the late afternoon, the Sun is low on the horizon. Sunlight has to travel a greater distance through the atmosphere to reach the observer’s eye. When sunlight reaches the observer’s eye, most of the violet, indigo and blue lights have been scattered away by dust and gas molecules. Only less scattered red, orange and yellow lights reach the observer’s eye. Therefore, the sky appears reddish orange. (e) Violet Red Light ray Plane mirror Basin Water Red Orange Yellow Green Blue Indigo Violet White screen The basin is filled with water and placed on the table. A plane mirror is placed in the basin. The laboratory is darkened by closing the windows and curtains. The ray box is switched on. A ray of light is directed to the plane mirror. The plane mirror is adjusted in position to get a clear colour spectrum on the white screen. 4 (a) Iron sulphide (b) There is no change, i.e., the product of the reaction is not attracted to the magnet (c) (i) Electrolysis (ii) Heating (d) – The elements are bound by chemical bonds – Involves the release of heat or the absorption of heat during its formation (e) Mixture Compound Prepared by physical methods Prepared by chemical methods Composition of elements is not fixed Composition of elements is fixed Does not involve a change in energy Involves the release or absorption of energy 5 (a) Transpiration (b) Temperature, wind conditions (c) Guard cell (d) On a hot day, continuous transpiration causes the guard cells to shrink, causing the stomata to close. This reduces water loss from the leaves through transpiration. F1-3 RC SC Answer(1-6).indd 2 3/4/2023 5:09:52 PM PENERBIT ILMU BAKTI SDN. BHD
A3 Answers (e) Manipulated variable – Surrounding temperature/ Surrounding conditions Responding variable – State of the flower plant 6 (a) (i) X, Y, Z (ii) The rate of diffusion in solids is the lowest. This is because the space between solid particles is the smallest. The rate of diffusion in gases is the highest. This is because the space between gas particles is the largest. Gas particles move rapidly. (b) (i) Evaporation (ii) Heat the seawater/ Put it under a fan/ Pour it into a container with a larger exposed surface area (c) (i) Mixture (ii) Seawater is a mixture of pure water and dissolved ionic substances. (d) Plastic sheet Water droplets Glass Seawater Basin Fill a basin with seawater. Leave it overnight so that the seawater evaporates on the plastic sheet. Water vapour condenses into pure water droplets. The water droplets are collected in the glass. Form 2 Ujian Akhir Sesi Akademik (UASA) Section A 1 A 2 B 3 D 4 D 5 A 6 B 7 D 8 A 9 D 10 D 11 A 12 C 13 C 14 B 15 A 16 C 17 B 18 B 19 A 20 B Section B 1 (a) Animal X has a backbone Animal Y has a hard exoskeleton (b) (i) Homeothermic, Lays eggs (ii) Poikilothermic, Lays eggs 2 (a) X: Oxygen Y: Carbon dioxide (b) Carbon dioxide + Water → Oxygen + Glucose 3 (a) (i) pathogens (ii) bacteria (b) (i) vaccine (ii) antiserum 4 (a) – Measuring the depth of oceans – Helping bats to locate objects (b) (i) True (ii) False (iii) True 5 (a) Saturn – The planet with a ring system Venus – The planet that rotates from the east to the west on its axis (b) X: Jupiter Y: Uranus Section C 1 (a) L: Proteins M: Carbohydrates, proteins, fats (b) K: amylase M: protease, lipase (c) (i) Bile (ii) Emulsifies fats and oil into small globules. (d) (i) Gallbladder (ii) Set B because set B contains a balanced meal complete with carbohydrates, protein, fibre and vitamins. Set B also follows the Malaysia healthy plate measurement, which is quarter quarter half as recommended by the Malaysian Ministry of Health. Set A is not suitable because it contains fast food that is high in trans fat and sugar that can increase blood cholesterol level. 2 (a) (i) The air pressure outside the can prevents the milk from flowing out through the hole. (ii) Punch another hole opposite the first one. (iii) A second hole is made opposite the first hole to allow air to enter the can while the milk flows out through the first hole. Air enters through the second hole and balances the air pressure inside and outside the can. This air pressure pushes the milk out through the first hole. As a result, milk flows continuously through the first hole. F1-3 RC SC Answer(1-6).indd 3 3/4/2023 5:09:52 PM PENERBIT ILMU BAKTI SDN. BHD
A4 Answers (b) (i) Air pressure at X is higher than at Y. (ii) When the plunger is pushed down, air is forced out from under the rubber suction cup and the air pressure at Y is reduced. When the plunger is pulled up, the volume of air under the rubber suction cup increases. This further reduces the air pressure at Y. The higher air pressure outside the rubber suction cup presses the rubber suction cup and pushes the remaining dirt that clogs the sink, causing water to flow out of the drainage. 3 (a) (i) C (ii) A (b) (i) Amplitude Time (ii) Amplitude Time (c) (i) Ultrasound waves are sound waves with a frequency above 20 000 Hz. (ii) The ultrasonic wave transmitter on the warship produces ultrasound waves which are directed into the sea. When an ultrasound wave hits a submarine, the sound wave is reflected back to the warship and detected by the ultrasound receiver. The time taken for the transmission and reception of the wave is used to estimate the distance of the submarine from the warship. (iii) Quality control procedure/ Ultrasound scanner (d) 1. Wrap the plastic wrap over the bowl. Make sure the plastic wrap is tight and not loose by tying it with a rubber band. 2. Place some coloured sugar crystals at the centre of the plastic wrap. 3. Try speaking in a low tone near the bowl and watch the reaction of the sugar crystals. 4. Then, speak in a high tone and observe the sugar’s reaction. 5. The sound waves cause the plastic wrap to vibrate, causing the sugar crystals to vibrate as well. 4 (a) (i) X (ii) The heat content of the water in X is higher than in Y because the water in X has a larger volume. (iii) Temperature, mass and type of substance. (b) (i) P → Q → R (ii) Material R experiences the least heat loss. So, material R is the best thermal insulator among the three materials. (c) Aluminium foil Big plastic cup Small plastic cup Cotton ball 1. Place the smaller plastic cup inside the larger plastic cup and fill the gap between the two cups with desired insulation material (paper, cotton). 2. Fill the smaller cup with hot liquid and wrap the entire thing in aluminium foil. 3. Use adhesive tape to seal the thermos if necessary. 5 (a) Alkaline – Cocoa, bitter gourd Acidic – Tamarind, mango (b) (i) X: No changes Y: Turns red (ii) Acids only show their properties in the presence of water. (c) (i) Use bicarbonate powder (ii) Fire ant stings are acidic. Bicarbonate powder which is alkaline can neutralise fire ant stings. 6 (a) X – series circuit Y – parallel circuit F1-3 RC SC Answer(1-6).indd 4 3/4/2023 5:09:53 PM PENERBIT ILMU BAKTI SDN. BHD
A5 Answers (b) X Y R = R1 + R2 = (3 + 3) W = 6 W I = V R = 6 6 = 1A 1 R = 1 R1 + 1 R2 = 1 3 + 1 3 = 2 3 W R = 3 2 W = 1.5 W I = V R = 6 1.5 = 4 A (c) (i) Q does not light up (ii) S still lights up (d) V = 1.5 V + 1.5 V = 3 V Effective resistance Q and R 1 R = 1 4 + 1 4 1 R = 2 4 R = 2 W Rcircuit = RP + Rparallel (Q and R) = 4 W + 2 W = 6 W I = V R = 3 6 = 0.5 A Form 3 Ujian Akhir Sesi Akademik (UASA) Section A 1 C 2 B 3 C 4 C 5 A 6 C 7 B 8 B 9 B 10 D 11 B 12 C 13 D 14 C 15 D 16 B 17 D 18 C 19 C 20 D Section B 1 (a) (i) Spiracle (ii) Tracheole (b) (i) Thin wall (ii) Moist wall 2 (a) Magnesium, tin (b) (i) Iron and oxygen (ii) Lead and sulphur 3 (a) (i) Step-up transformer (ii) Step-down transformer (b) (i) Earth wire (ii) Live wire 4 (a) (i) Electron (ii) Proton (b) (i) 7 (ii) 3 5 (a) (i) Heliocentric model (ii) Geocentric model (b) (i) elliptical (ii) Sun Section C 1 (a) (i) Anita. She did not wear a face mask. Gaseous exchange during running can occur perfectly. (ii) Carbon dioxide accumulates in the mask during exhalation. The inhaled air in the alveoli contains a higher concentration of carbon dioxide compared to the concentration of carbon dioxide in the blood capillaries. Carbon dioxide diffuses into the blood capillaries and is transported to the body cells. (b) Thin wall of alveolus / Moist wall of alveolus / Large surface area / Compact network of blood capillaries 2 (a) Individual P did not do any work because there is no displacement. Work is done by individual Q because there is displacement produced by her hands. (b) (i) Horizontal (ii) Work done (W) = Force (F) × Displacement (s) (iii) Work = (10 × 10) N × 4 m = 400 J (iv) Not the same. The increasing force (weight) will affect the amount of work done. 3 (a) P: Sensory cells for smell (smell receptors) Q: Nasal cavity (b) (i) Chemical substances (ii) Chemical substances enter the nasal cavity and dissolve in the mucus layer on the surface of sensory cells for smell (smell receptors). Sensory cells for smell are stimulated to produce nerve impulses and then the impulses are sent to the brain to identify the type of smell. F1-3 RC SC Answer(1-6).indd 5 3/4/2023 5:09:53 PM PENERBIT ILMU BAKTI SDN. BHD
A6 Answers (c) (i) Both the senses of smell and taste work together in enhancing the sense of taste. The accumulation of thick mucus prevents the sensory cells for smell (smell receptors) from detecting chemical substances found in the nasal cavity. When the sense of smell cannot be used, only the sense of taste is stimulated to detect taste. (ii) Cold (iii) Saliva 4 (a) (i) Solar flares / Prominence / Sunspots / Coronal mass ejections (ii) Solar winds / Solar radiation storms / Geomagnetic storms (b) (i) R : Telecommunication system S : Navigation system T : Power grid system (ii) R : No radio or television signal S : Error in ship navigation system T : Disruption in electrical supply (c) (i) Solar wind (ii) Development in the tourism industry 5 (a) (i) Roots (ii) Shoots (iii) Roots (b) Tropism (c) Plants are able to respond towards stimuli such as light, gravity and water to ensure their sustainability and survival. (d) Opening Black box – Make an opening on the left side of the box using scissors. – Unilateral light from the left causes the shoot and stem of the plant to bend to the left to obtain light source. (e) (i) Thigmotropism (ii) – The roots grow deeper into the soil. – The roots avoid any objects that block them. – So that the roots can find source of water. 6 (a) (i) Leaf (ii) X (b) (i) In a room without fan. The air movement is slower (ii) Less than 35 g / 2 – 10 g The air movement is slower / No air movement. Rate of transpiration becomes lower, causing less water to evaporate. (c) The surface area of each leaf decreases / The number of stomata decreases. Rate of transpiration becomes low. (d) (i) (ii) The blue coloured tissues are xylem. The blue ink solution diffuses from the roots to the leaves through the stem to replace the water lost during transpiration. F1-3 RC SC Answer(1-6).indd 6 3/4/2023 5:09:53 PM PENERBIT ILMU BAKTI SDN. BHD