Worksheetsscience PT3
Total questions: 60
Worksheet time: 30mins
P is ...............
P ialah ................
Aorta
Aorta
Vena cava
Vena kava
Pulmonary artery
Ateri pulmonari
Pulmonary vein
Vena pulmonari
A windmill is used for grinding grains.
Kincir angin digunakan untuk mengisar bijirin.
Mark ( ✓ ) for the correct statement and mark ( ✗ ) for the incorrect statement about the source of energy shown.
Tandakan ( ✓ ) pada pernyataan yang betul dan tandakan ( ✗ ) pada pernyataan yang salah tentang sumber tenaga yang ditunjukkan.
Does not cause pollution.
Tidak menyebabkan pencemaran.
It converts gravitational potential energy into electrical energy.
Menukarkan tenaga keupayaan graviti kepada tenaga elektrik.
Limited energy sources.
Sumber tenaga yang terhad.
Cannot produce a lot of energy.
Tidak dapat menghasilkan tenaga yang banyak.
Which of the following is an endothermic reaction?
Antara yang berikut, yang manakah adalah
tindak balas endotermik?
Boiling of water
Pendidihan air
Burning of fossil fuels
Pembakaran bahan api fosil
Reaction between zinc and water
Tindak balas antara zink dengan air
Dissolving sodium hydroxide in water
Melarutkan natrium hidroksida ke dalam air
Which of the following elements form bauxite?
Antara unsur berikut, yang manakah membentuk bauksit?
Tin
Timah
Iron
Besi
Oxygen
Oksigen
Aluminium
Aluminium
Which factors that affect the work done.
Faktor-faktor yang manakah mempengaruhi kerja yang dilakukan.
Time
Masa
Force
Daya
Displacement
Sesaran
Volume
Isipadu
Which statement shows the inhalation process?
Pernyataan yang manakah menunjukkan proses menarik nafas?
intercostal muscle relax
otot interkostal mengendur
the volume of air inside the thoracic cavity decreases
isipadu udara di dalam rongga toraks berkurang
air pressure inside the thoracic cavity decreases
tekanan udara dalam rongga toraks berkurang
diaphragm relax and curves upwards
diagfragma mengendur dan melengkung ke atas
Complete the bubble map above with the correct examples of renewable energy.
Lengkapkan peta buih di atas dengan contoh tenaga boleh diperbaharui yang betul
Coal
Arang batu
Biomass
Biojisim
Natural gas
Gas asli
Geothermal
Geoterma
Electric current is produced by the movement of wires or movement of a _____________ which causes the magnetic field lines to be cut across.
Arus elektrik dihasilkan oleh gerakan dawai atau gerakan ___________ yang menyebabkan garis medan magnet dipotong.
generator
transformer
magnet
Which of the following diagrams shows the blood circulation of human?
Antara rajah yang berikut, yang manakah menunjukkan peredaran darah manusia?
the actions controlled by the spinal cord is called
sensory actions
reflex actions
flexible actions
nervous actions
Which conditions causes increased of respiratory rate?
Situasi yang manakah menyebabkan kadar pernafasan meningkat?
i and ii
iii and iv
ii and iii
i and iv
Why are patients with AB blood group is said to have high chances to be saved if they need blood transfusions?
Mengapakah pesakit dengan kumpulan darah AB dikatakan mempunyai peluang yang tinggi untuk diselamatkan jika mereka memerlukan pemindahan darah?
AB blood group has many antibodies
Kumpulan darah AB mempunyai banyak antibodi
The probability of agglutination is high
Kebarangkalian untuk berlakunya pengaglutinatan adalah tinggi
The probability of agglutination is low
Kebarangkalian untuk berlakunya pengaglutinatan adalah rendah
AB blood group may receive blood from most other blood groups
Kumpulan darah AB boleh menerima darah dari kebanyakan kumpulan darah yang lain
zinc oxide + carbon
zinc oxide + hydrogen
aluminium oxide + carbon
magnesium oxide + hydrogen
Satu campuran di antara zink dan sulphur dipanaskan. Antara berikut yang manakah persamaan mewakili tindak balas tersebut? A mixture of zinc and sulphur are heated. Which of the following represents the reaction occurs?
Zink + sulfur → zink sulfat
Zinc + sulphur → zinc sulphate
Zink + sulfur → zink oksida
Zinc + sulphur → zinc oxide
Zink + sulfur → zink sulfida
Zinc + sulphur → zinc sulphide
Zink + sulfur → zink silikat
Zinc + sulphur → zinc silicate
Antara logam berikut, yang manakah boleh diekstrak daripada bauksit? Which of the following metal can be extracted from bauxite?
Aluminium
Aluminium
Besi
Iron
Timah
Tin
Plumbum
Lead
Rajah menunjukkan satu eksperimen bagi mengkaji tindak balas antara logam dan oksigen.
Apakah fungsi hablur kalium manganat(VII)? The diagram shows a set-up of experiment for the reaction between metal and oxygen. What is the function of potassium manganate(VII) crystal?
Membekalkan oksigen untuk tindak balas
Give oxygen during reaction
Mempercepatkan kadar tindak balas
Increase the rate of reaction
Memberi tindak balas eksotermik
Give exothermic reaction
Mempercepatkan proses penyejukan logam
To increase metal cooling process
Apakah yang dimaksudkan dengan mineral? What is the meaning of mineral?
Oksida buatan manusia bagi suatu unsur kimia
A man-made oxide of a chemical element
Sulfida suatu logam.
The sulphide of a metal
Unsur atau sebatian yang wujud secara semula jadi
A naturally occurring element or compound
Karbonat suatu kalsium
The carbonate of calcium
Apabila dipanaskan dengan kuat, kalsium karbonat terurai kepada X dan membebaskan karbon dioksida seperti ditunjukkan dalam persamaan di bawah. Apakah X? When heated strongly, calcium carbonate breaks down into X and releases carbon dioxide as shown in an equation below. What is X?
Kalsium Karbonat → X + karbon dioksida
Calcium carbonate → X + carbon dioxide
Kalsium
Calcium
Kalsium oksida
Calcium oxide
Kalsium sulfida
Calcium sulphide
Kalsium sulfat
Calcium sulphate
Rajah menunjukkan tindak balas antara kalsium karbonat dan asid hidroklorik cair. Apakah gas yang dihasilkan? The diagram shows the reaction between calcium carbonate and dilute hydrochloric acid. What is the gas produced?
Oksigen
Oxygen
Hidrogen
Hydrogen
Karbon dioksida
Carbon dioxide
Sulfur dioksida
Sulphur dioxide
Antara berikut, yang manakah bukan ciri tindak balas eksotermik? Which of the followings are not the characteristic of exothermic process?
Tenaga haba dibebaskan
Heat energy released
Suhu meningkat
Temperature increase
Tenaga kimia ditukarkan kepada tenaga haba
Chemical energy is converted to heat energy
Tenaga haba diserap
Heat energy absorbed
Antara pernyataan berikut, yang manakah benar tentang tindak balas eksotermik? Which of the following is a correct statement about an exothermic reaction?
Haba diserap dari persekitaran.
Heat is absorbed from the surroundings.
Kandungan tenaga dalam hasil tindak balas kurang berbanding dalam bahan tindak balas.
The energy content of the products is less than that of the reactants.
Suhu persekitaran berkurangan.
The temperature of the surroundings decreases.
Tindak balas eksotermik biasanya merupakan proses berbalik.
It is usually a reversible process.
Antara berikut, yang manakah merupakan tindak balas eksotermik? Which of the following are exothermic reaction?
I Pembakaran / Combustion
II Peneutralan / Neutralization
III Penyejatan / Evaporation
IV Elektrolisis air / Water electrolysis
I, II
II, III
III, IV
I and IV
Antara yang berikut, yang manakah adalah tindak balas endotermik? Which of the following is an endothermic reaction?
Pendidihan air
Boiling of water
Pembakaran bahan api fosil
Burning of fossil fuels
Tindak balas antara zink dengan air
Reaction between zinc and water
Melarutkan natrium hidroksida ke dalam air
Dissolving sodium hydroxide in water
Nyatakan mineral dalam galena. State the mineral in galena.
Ferum dan oksigen
Iron and oxygen
Kuprum dan sulfur
Copper and sulphur
Plumbum dan sulfur
Lead and sulphur
Aluminium dan oksigen
Aluminium and oxygen
Antara berikut, yang manakah kurang reaktif daripada karbon? Which of the following metals is less reactive than carbon?
Zink / Zinc
Kalsium / Calcium
Aluminium / Aluminium
Magnesium / Magnesium
Bahan kimia yang manakah digunakan dalam suatu pek sejuk? Which chemical is used in a cold pack?
Kalsium oksida
Calcium oxide
Kalsium klorida
Calcium chloride
Ammonium klorida
Ammonium chloride
Kuprum(II) sulfat kontang
Anhydrous copper(II) sulphate
Nerves fibres which link different parts of the body to the central nervous system
Nervous system
Sensory nerves
Peripheral nerves
Motor nerves
Organ or cells that act in response to a stimulus
Effector
Stimuli
Cranium
Muscle and gland
Organ that able to detect changes in the environment
Sensory nerves
Sensory organ
Spinal cord
Central nervous system
Electric signals that moves through nerve cells
Nerves impulses
Nervous system
Effector
Stimuli
Hematite is a natural compound for _______ oxide.
Iron
Aluminium
Calcium
Zinc
Which of the following exists as a natural compound in the Earth's crust?
Gold
Tin
Marble
Diamond
Which of the following metal oxides does not react with carbon?
Zinc oxide
Copper oxide
Ferum oxide
Aluminium oxide
Which of the following is not the consequences of unplanned mining activities on the environment?
The carbon cycle remains balanced even after logging activities.
The extinction of endemic species
Deposition of silt often cause flash floods in surrounding area
Transmission of infectious diseases due to improper drainage system.
Which of the following are the examples of exothermic reaction?
I Bomb explosion
II Respiration
III Photosynthesis
IV Melting of ice
I and II
I and III
II and IV
III and IV
Aisyah used an 800 W hair dryer for 15 minutes. What is the cost of electrical energy used if the rate per unit is 21 sen?
4.2 cent
5.25 cent
8.5 cent
10 cent
Di antara yang berikut, yang manakah yang BENAR mengenai transformer?
Which of the following is TRUE about transformer?
Transformer mengubah voltan bagi arus terus untuk memenuhi keperluan voltan yang berbeza.
Transformer changes the voltage for direct current to meet the different voltage requirements.
Transformer mengubah voltan bagi arus ulang-alik untuk memenuhi keperluan voltan yang berbeza.
Transformer changes the voltage for alternating current to meet the different voltage requirements.
Transformer hanya mampu menurunkan voltan ke nilai yang bersesuaian mengikut keperluan.
The transformer is only capable of lowering the voltage to the appropriate value as required.
Di antara yang berikut, yang manakah yang BENAR mengenai arus terus dan arus ulang-alik?
Which of the following is TRUE about the direct current and alternating current?
Arus terus mengalir dalam arah berubah mengikut masa.
Direct current flows in a direction that changes over time.
Arus ulang-alik mempunyai nilai voltan yang tetap.
Alternating current has fixed voltage value.
Arus terus mempunyai nilai voltan yang tetap sepanjang masa.
Direct current has fixed voltage value at all times.
Bagaimanakah proses aruhan elektromagnet menghasilkan tenaga elektrik?
How does electromagnetic induction create electrical energy?
Pemotongan medan magnet dengan menggunakan dawai penebat yang digerakkan untuk memotong medan magnet.
Magnetic field cutting by using the motion of the insulating wire to cut the magnetic field.
Pemotongan kutub magnet dengan menggerakkan magnet atau menggerakkan dawai.
Magnetic pole cutting by moving the magnet or moving the wire.
Pemotongan medan magnet dengan menggunakan dawai konduktor yang digerakkan untuk memotong medan magnet.
Magnetic field cutting by using the motion of the conductor wire to cut the magnetic field.
Fungsi dawai yang mengembalikan arus elektrik ke pencawang akan ditandakan dengan warna apa?
The wire that has the function to return the electrical current back to the substation is marked with what colour?
Biru
Blue
Hijau
Green
Perang
Brown
Mengapakah mentol LED mempunyai kecekapan tenaga yang lebih baik berbanding mentol filamen? (pilih 1 atau lebih jawapan yang tepat)
Why do LED bulbs have better energy efficiency than filament bulbs? (choose 1 or more correct answer)
Kerana mentol LED menghasilkan kecerahan yang sama dengan mentol filamen, tetapi menggunakan elektrik yang lebih rendah.
Because LED bulbs produce the same brightness as filament bulbs, but use less electricity.
Kerana mentol LED menghasilkan tenaga haba yang kurang berbanding mentol filamen.
Because LED bulbs produce the same brightness as filament bulbs, but use less electricity.
Kerana mentol LED tidak memerlukan penggunaan elektrik yang tinggi berbanding mentol filamen.
Because LED bulbs do not require high electricity consumption compared to filament bulbs.
Apakah fungsi pemutus litar bocor ke bumi (ELCB)?
What is the function of earth leakage circuit breaker (ELCB)?
Mengawal jumlah arus yang mengalir melalui litar di dalam rumah.
Controls the amount of current flowing through the circuit in the house.
Mengasingkan litar akhir ke bahagian peralatan elektrik.
Isolates the final circuit to the electrical appliances.
Memutuskan litar apabila berlaku litar pintas.
Disconnect the circuit in the event of short circuit.
Memutuskan litar apabila arus berlebihan mengalir melaluinya.
Disconnect the circuit when excess current flows through it.
Apakah yang dimaksudkan dengan litar pintas?
What does short circuit mean?
Berlaku apabila dawai hidup dan dawai neutral bersentuhan di bahagian dawai yang terkoyak penebatnya.
Occurs when the live wire and the neutral wire come in contact on the part where the wire insulation torn.
Belaku apabila arus yang sangat tinggi seperti kilat mengalir melalui litar.
Occurs when excessively large current like lightning flows through the circuit.
Berlaku apabila arus memintas dari dawai hidup ke dawai bumi.
Occurs when the current bypass from live wire to earth wire.
Aorta
The largest arterial trunk that carries blood from the heart to be distributed by branch arteries through the body
a vessel that returns blood to the heart
a body structure that is temporarily closes a passage or orifice, or permits movement of fluid in only one direction.
An integrated group of cells with a common function, structure, or both
The left ventricle pumps what type of blood and to where
Oxygenated to the lungs
Deoxygenated to the lungs
Oxygenated to the body
Deoxygenated to the lungs
The bicuspid valve performs what role
Prevent back flow of blood between the right atrium and left ventricle
Prevent back flow of blood between the right ventricle and left ventricle
Prevent back flow of blood between the left atrium and left ventricle
Prevent back flow of blood between the right ventricle and the pulmonary veins.
How do wind turbines generate electricity?
The blades of the wind turbine are moved by the wind, which turns a generator inside it and generates electricity
The National Grid spins the turbines to transfer electricity to homes
Wind turbines do not generate electricity, they heat water
The blades spin to heat water, create steam, which turns a turbine, and produces electricity
Choose the correct statement:
The ratio of the secondary voltage to the primary voltage is equal to the ratio of the primary turn to the secondary turn
The ratio of the primary current to the secondary current is equal to the ratio of the primary voltage to the secondary voltage
The ratio of the primary apparent power to the secondary apparent power is equal to the ration of the primary voltage to the secondary voltage
The ratio of the secondary current to the primary current is equal to the ratio of the primary turn to the secondary turn
Assume primary has 240 turns and secondary has 60 turns. Primary is connected with 120 V AC power supply. What is the voltage on the secondary?
2 V
30 V
0.333 V
120 V
The flowchart shows the sequence of the components in the electricity transmission and distribution system.
Power station -----> _____________ -----> National Grid Network ----> Main substation ----> _____________ ----> _____________ ----> Branch substation ----> Step-down transformer
Switch zone, step-up transformer, step-down transformer
Switch zone, step-down transformer, step-up transformer
Step-up transformer, switch zone, step-down transformer
Step-up transformer, step-down transformer, switch zone
Mei Ling got an electric shock while ironing her clothes. The following information shows the steps taken by his brother to help her.
P- Calls an ambulance
Q- Remove electrical source using an insulator
R- Switches off the main power supply
S- Perform mouth to mouth resuscitation if the victim is not breathing.
Which sequence is correct?
P, R, Q, S
R, Q, S, P
P, Q, R, S
R, Q, P, S
___________ disconnects the current supply temporarily when it is not needed (such as during repairing damaged wiring).
ELCB circuit breaker
Main switch
MCB circuit breaker
Electric meter
___________ cuts off the current supply in the house when excessive current flows through it.
ELCB circuit breaker
Main switch
MCB circuit breaker
Electric meter
___________ separates the final circuit into the other parts of electrical equipment like air conditioner circuit and controls the quantity of current flows through it.
ELCB circuit breaker
Main switch
MCB circuit breaker
Electric meter
Why is alternating current used instead of direct current in the transmission of electricity through long distances?
Only alternating current can flow through the cables.
Alternating current voltage can be stepped up or stepped down by using transformers.
Most of the electrical appliances work only with alternating current.
Generating direct current is more complicated than generating alternating current.
What is the function of live wire?
To carry electrical current from electrical appliance to substation
To carry leaked current to the ground
To carry electrical current from station to electrical appliance
melts when the current flowing through it exceeds the value of the fuse.
Which of the following uses single - phase wiring?
Industrial area
Shopping mall
Hotel
Homestay
What is the function of the National Grid Network?
Transmit electrical energy all over the country through high voltage cable network
Store voltage for emergency use
Collect and channel the electrical energy to the consumers
Lower the value of voltage to suit the supplied area
