Grade 12 Quizzes, Questions & Answers
Recent Grade 12 Quizzes
Questions: 20 | Attempts: 735 | Last updated: Mar 7, 2025
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Sample QuestionA zero matrix has all its elements equal to
Questions: 15 | Attempts: 305 | Last updated: Jul 10, 2025
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Sample QuestionIf the energy of a proton is given as 3.03 × 10-19 J then, the wave length of the photon is:
Questions: 8 | Attempts: 441 | Last updated: Jan 10, 2025
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Sample QuestionTwo chemists are designing instant hot and cold packs for a sports medicine supply company. Their design uses chemicals that react with water to either heat up or cool down the water inside the packs. They are investigating the reaction of ammonium chloride with water to determine whether it is exothermic or endothermic. Chemist A read a study done recently by the National Institute for Standards and Testing, which reported that 27.6 kilojoules of energy are absorbed by 100 grams of ammonium chloride when it is mixed with water. Chemist B measured the temperature of the water in which the reaction takes place before and after the reaction. The results are displayed in the table. Question: Does Chemist B's results support or contradict the evidence reported by Chemist A? You may use the calculator
Questions: 15 | Attempts: 1725 | Last updated: Mar 20, 2025
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Sample QuestionIf a car at rest accelerates uniformly to a speed of 144 km/h in 20s, it covers a distance of
Questions: 15 | Attempts: 1425 | Last updated: Mar 19, 2025
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Sample QuestionThe density of a material in CGS system of units is 4g/cm3. In a system of units in which unit of length is 10cm and unit of mass is 100g, the value of density of material will be
Questions: 25 | Attempts: 1719 | Last updated: Mar 21, 2025
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Sample QuestionDatacenter infrastructure components include:
Questions: 21 | Attempts: 126 | Last updated: Mar 21, 2025
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Sample QuestionAlong a supply curve, if the price of oil falls, what will happen to the quantity of oil supplied?
Questions: 30 | Attempts: 272 | Last updated: Jan 22, 2025
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Sample QuestionResources which factors are used in producing goods or provides services
Questions: 10 | Attempts: 331 | Last updated: Jan 20, 2025
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Sample QuestionWhat is the minimum distance for the eye to focus any object?
Questions: 50 | Attempts: 1829 | Last updated: Mar 19, 2025
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Sample QuestionThis country has Constitutional Monarchy form of government.
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