Question 61
Which of the following explains Ohm's law?Electricity and magnetismElectricity - Ohm's Laweasy
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NSC Physical Sciences – South Africa
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Question 62
What causes the refraction of a wave when it passes from one medium to another?Waves and opticsWaves - Refractioneasy
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Question 63
Which property defines a material's ability to return to its original shape after deformation?Matter and materialsProperties of Materials - Elasticityeasy
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Question 64
During a chemical reaction, the total mass of the reactants and products is equal. This statement illustrates which law?Chemical changeChemical Reactions - Conservation Lawsmedium
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Question 65
What type of bond is formed when electrons are shared between two atoms?Chemical changeChemical Bonding - Covalent Bondsmedium
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Question 66
Which of the following correctly describes an exothermic reaction?Chemical changeChemical Energetics - Exothermic and Endothermic Reactionsmedium
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Question 67
What is the functional group present in all alcohols?Organic chemistryFunctional Groups - Alcoholsmedium
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Question 68
A 2 kg object is moving at 3 m/s. What is its kinetic energy?MechanicsMechanics - Energy Calculationsmedium
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Question 69
Which statement best describes magnetic flux?Electricity and magnetismMagnetism - Magnetic Fluxhard
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Question 70
Which component in a circuit is used to oppose the flow of current?Electricity and magnetismElectric circuits - Componentseasy
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