WorksheetsScience Worksheet - Alternative Fuels and Environmental Impact
Total questions: 25
Worksheet time: 13mins
Antara berikut, bahan yang manakah boleh dibuang ke dalam singki?
Asid lemah (Weak acid)
Logam berat (Heavy metal)
Bahan reaktif (Reactive substances)
Pelarut organik (Organic solvent)
Antara berikut, padanan manakah yang betul tentang pemadam kebakaran dan warna label?
Air (Water) - Hitam (Black)
Buih (Foam) - Krim (Cream)
Serbuk kering (Dry powder) - Merah (Red)
Karbon dioksida (Carbon dioxide) - Biru (Blue)
Apakah sumber bahan api alternatif yang boleh digunakan untuk mengurangkan isu sosio-saintifik dalam sektor tenaga?
Gas asli (Natural gas)
Geoterma (Geothermal)
Petroleum (Petroleum)
Arang batu (Coal)
Apakah kesan aktiviti tersebut terhadap alam sekitar?
Pemanasan global (Global warming)
Banjir kilat (Flash flood)
Eutrofikasi (Eutrophication)
Hujan asid (Acid rain)
What is the possible phenotype ratio for the offspring produced from the mating of Pp × pp?
All purple flowers
All white flowers
1 purple flower : 1 white flower
3 purple flowers : 1 white flower
Which of the following is the correct match for the factors that cause variation?
Genetic factor: pH value | Environmental factor: Chromosome arrangement
Genetic factor: Cloning | Environmental factor: Sunlight
Genetic factor: Nutrition | Environmental factor: Fertilisation
Genetic factor: Crossing over | Environmental factor: Climate
Apakah fungsi utama sistem rangka dalam haiwan vertebrata? What is the main function of the skeletal system in vertebrates?
Menyerap nutrien (Absorb nutrients)
Membantu dalam fotosintesis (Assist in photosynthesis)
Menghasilkan tenaga secara langsung (Produce energy directly)
Menyokong badan dan melindungi organ dalaman (Support the body and protect internal organs)
Apakah peranan otot X dan otot Y semasa lengan membengkok?
Otot X: Mengendur (Relaxes), Otot Y: Mengendur (Relaxes)
Otot X: Mengecut (Contracts), Otot Y: Mengendur (Relaxes)
Otot X: Mengendur (Relaxes), Otot Y: Mengecut (Contracts)
Otot X: Mengecut (Contracts), Otot Y: Mengecut (Contracts)
What is the action should be taken to overcome the effect of hormone deficiency secreted by gland R?
Exercise regularly
Taking an insulin injection
Reducing salt intake
Eat according to the food pyramid
What is the effect of the drug on body coordination?
Causes hallucination
Changes the path of impulses in the brain
Slows down impulse transmission in body coordination
Speed up impulse transmission in body coordination
What causes the element Q to be chemically inert and not undergo any chemical reactions?
Atom Q has 8 electrons
Atom Q has 40 neutrons
Atom Q has stable octet electron arrangement
Atoms Q has the same number of protons and electrons
Which of the following is the function of the radioisotope Cobalt-60 in Diagram 8?
Helps sterilize patient's body parts
Killing cancer cells in radiotherapy treatment
Used in nuclear physics, biology and chemistry experiments
Produce a high magnetic field that will kill microorganisms
What are the elements present in the alloy used to build aeroplane?
Iron, Carbon
Copper, Tin
Copper, Tin, Antimony
Aluminium, Copper, Magnesium
Apakah sebab seramik digunakan dalam pembuatan gigi palsu?
Lembut dan mudah dibentuk (Soft and malleable)
Mudah dibentuk dan berkilau (Malleable and shiny)
Kuat dan lengai terhadap bahan kimia (Strong and chemically inert)
Tahan haba dan mempunyai takat lebur yang rendah (Resistant to heat and has low melting point)
Rajah 9 menunjukkan suatu barangan yang dihasilkan daripada sejenis getah. Apakah kelebihan proses yang digunakan dalam penghasilan barangan tersebut?
Struktur molekul getah sukar diputuskan (Rubber molecular structure is hard to break)
Rantai polimer getah sukar menggelongsor (Rubber polymer chains are difficult to slide)
Atom sulfur menghasilkan rangkaian silang (Sulfur atoms produce cross-linked networks)
Mempunyai daya ketahanan haba yang tinggi (Has high heat resistance)
Bahan antioksidan terdapat dalam beberapa jenis makanan. Apakah makanan yang kaya dengan bahan antioksidan? Antioxidants are found in several types of foods. What is food that is rich in antioxidants?
Kerepek ubi (Potato chips)
Daging salai (Smoked meat)
Kek mentega (Butter cake)
Kacang badam (Almond)
Rajah 10 menunjukkan sebuah kereta mainan yang bergerak dari R ke S. Jika masa yang diambil ialah 4 saat, berapakah pecutannya?
5 m s⁻²
10 m s⁻²
15 m s⁻²
20 m s⁻²
Antara berikut, pernyataan manakah yang menerangkan jatuh bebas?
Jatuh bebas ialah keadaan jatuh yang dipengaruhi oleh tindakan graviti sahaja
Jatuh bebas ialah keadaan jatuh yang dipengaruhi oleh tindakan graviti dan daya geseran
Jatuh bebas ialah keadaan jatuh yang dipengaruhi oleh tindakan graviti dan jisim objek
Jatuh bebas ialah keadaan jatuh yang dipengaruhi oleh tindakan graviti dan rintangan air
Diagram 11 shows two tins, K and L that are hanging then swing simultaneously with the same force. K takes a longer time to stop swinging.
K is higher velocity than L
L has a higher pressure
L has a smaller inertia
The gravitational force of K is higher than L
What is Y?
Turbine
Generator
Condenser
Cooling agent
Diagram 13 shows two petri dishes that were taken out after being stored in a dark cupboard for three days at room temperature. The diagram shows: - Petri dish 1: Bacteria culture solution + Dry sterile nutrient agar (no bacterial colonies) - Petri dish 2: Bacteria culture solution + Moist sterile nutrient agar (bacterial colonies present) Which of the following factors causes the growth of the bacteria?
A. Light
B. Humidity
C. Presence of nutrient
D. Surrounding temperature
A student has fallen off his bicycle, causing his knee to be injured and bleeding. What should the student's mother do to prevent infection in his wound?
Take paracetamol
Clean the wound with acriflavine
Wipe the wound with hot water
Spray the wound with hydrogen peroxide
Which of the following foods can help the child to recover?
A. (Images of orange, banana, apple)
B. (Images of chicken, fish, avocado)
C. (Images of rice, bread, noodles)
D. (Images of carrot, tomato, leafy greens)
Which of the following is the effect of planting this type of plant?
Menambahkan ion nitrat di dalam tanah (Increases nitrate ions in the soil)
Menyingkirkan ion nitrat di dalam tanah (Removes nitrate ions from the soil)
Menambahkan gas nitrogen di atmosfera (Increases nitrogen gas in the atmosphere)
Menukarkan ion ammonium kepada ion nitrat di dalam tanah (Converts ammonium ions to nitrate ions in the soil)
Which of the following chemical substances is correctly matched?
A. Stabiliser | Bleach | Flavoring
B. Preservative | Bleach | Colouring
C. Preservative | Bleach | Flavoring
D. Stabiliser | Bleach | Colouring
