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WorksheetsSAINS TINGKATAN 3 BAB 5
Total questions: 15
Worksheet time: 8mins
Apakah persamaan tindak balas eksotermik dan tindak balas endotermik? (What is the similarity between exothermic and endothermic reaction?)
Suhu persekitaran kurang (The temperature of the surrounding decreases)
Berlaku dalam perubahan kimia (Occurs in chemical changes)
Haba dibebaskan ke persekitaran (Heat is released to the surrounding)
Memerlukan masa yang lama untuk bertindak balas (Takes a long time to react)
Tindak balas kimia boleh dibahagikan kepada dua iaitu: (Chemical reaction can be divided into two group which is: )
Termokimia (thermochemistry)
Endotermik (endothermic)
Eksotermik (exothermic)
Kondensasi (condensation)
Bidang sains yang mengkaji perubahan haba dikenali sebagai ___________. (The science field which studies heat changes is known as _____________.)
Kimia organik (Organic chemistry)
Termokimia (Thermochemistry)
Tindak balas eksotermik adalah tindak balas kimia yang ________________ dari persekitarannya. (Exothermic reaction is a chemical reaction that ______________ to its surrounding)
Menyerap haba (absorb heat)
Membebaskan haba (releases heat)
Tandakan proses yang berkaitan dengan tindak balas endotermik (Tick the process which related to endothermic reaction)
Letupan (Explotion)
Membuat roti (Baking bread)
Respirasi sel (Cell respiration)
Fotosintesis (Photosynthesis)
Tandakan proses yang berkaitan dengan tindak balas eksotermik. (Tick the process which related to exothermic reaction)
Letupan (Explotion)
Pembekuan air (Freezing of water)
Pencairan ais (Melting of ice)
Menggoreng telur (Frying an egg)
Mengapakah gelas yang diisi dengan ketulan ais dan air terasa sejuk selepas beberapa saat? (Why is the glass filled with ice cubes and water feels cold after a few seconds?)
Air turut menjadi beku kerana ketulan ais (Water also freezes due to ice cubes)
Gelas menyerap haba daripada air dan ketulan ais (Glass absorbs heat from water and ice cubes)
Gelas membebaskan haba kepada air dan ketulan ais (Glass releases heat from water and ice cubes)
Tindak balas antara air dan ais menyerap haba dari persekitaran (The reaction between water and ice absorbs heat from the surrounding)
Antara berikut, alat manakah yang mengaplikasikan konsep tindak balas termokimia? (Which of the following tools applies the concept of thermochemistry reaction?)
Mancis (match)
Termos (Thermos)
Kalkulator (Calculator)
Lampu suluh (Torchlight)
Antara berikut, yang manakah merupakan bahan kimia dalam pek sejuk? (Which of the following is the chemical substances in cold pack?)
Kalsium oksida (Calcium oxide)
Magnesium oksida (Magnesium oxide)
Ammonium klorida (Ammonium chloride)
Kalsium klorida kontang (Anhydrous calcium chloride)
Antara berikut, manakah kegunaan yang betul bagi pek panas? (Which of the following is teh correct use of hot pack?)
Melegakan kekejangan otot (Relieves muscle spasms)
Mengurangkan bengkak (Reduces swelling)
Menurunkan suhu badan ketika demam (Lowers body temperature during fever)
Melegakan sakit kepala (Relieves headache)
Pilih jenis tindak balas yang berlaku bagi tindak balas antara natrium hidroksida dan air. (Choose the type of reaction that occurs for the reaction between sodium hydroxide and water)
Tindak balas eksotermik (exothermic reaction)
Tindak balas endotermik (endothermic reaction)
Pilih jenis tindak balas yang berlaku bagi tindak balas antara garam ammnonium klorida dan air. (Choose the type of reaction that occurs for the reaction between ammonium chloride salt and water)
Tindak balas eksotermik (Exothermic reaction)
Tindak balas endotermik (Endothermic reaction)
Apakah tindak balas termokimia? (What is a thermochemistry reaction?)
Proses pembebasan atau penyerapan haba dalam tindak balas kimia (The process of releasing or absorbing heat in a chemical reaction)
Pembakaran (Combustion)
Tindak balas penggumpalan (Agglutination reaction)
Tindak balas penguraian (Decomposition reaction)
Tandakan ciri-ciri tindak balas endotermik (Tick the characteristics of endothermic reaction)
Haba diserap dari persekitaran (Heat is absorbs from the surrounding)
Bacaan termometer menurun (The reading of thermometer decreases)
Tabung uji menjadi sejuk (The test tube becomes cool)
Tabung uji menjadi panas (The test tube becomes hot)
Tandakan ciri-ciri mengenai tindak balas eksotermik. (Tick the characteristics about exothermic reaction)
Haba dibebaskan ke persekitaran (Heat is released to the environment)
Bacaan termometer meningkat (The reading of thermometer increases)
Tabung uji menjadi panas (The test tube becomes hot)
Bacaan termometer menurun (The reading of thermometer decreases)
