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NSC Physical Sciences AI Practice

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Note: Diagram-based questions are coming soon. WAEC Biology Paper includes ~5 diagram questions.

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Question 141

In an exothermic chemical reaction:
Chemical changeChemical change - Energy changes in reactionsmedium

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Question 142

What is the SI unit of force?
MechanicsMechanics - Units and measurementseasy

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Question 143

Which of the following materials is a good electrical conductor?
Electricity and magnetismElectricity - Conductors and insulatorseasy

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Question 144

Which wave property remains unchanged when a wave passes from one medium to another?
Waves and opticsWaves - Wave propertiesmedium

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Question 145

What is the main type of bonding in sodium chloride (NaCl)?
Matter and materialsMatter - Bonding typesmedium

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Question 146

Which of the following best describes an exothermic chemical reaction?
Chemical changeChemical change - Energy in reactionseasy

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Question 147

A block of mass 5 kg is pushed with a force of 20 N on a frictionless surface. What is its acceleration?
MechanicsMechanics - Newton's lawsmedium

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Question 148

What is the molar volume of an ideal gas at standard temperature and pressure (STP)?
Matter and materialsMatter - Gas lawshard

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Question 149

Which compound is an example of an alkene?
Organic chemistryOrganic chemistry - Hydrocarbonsmedium

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Question 150

What is the acceleration of an object with a mass of 5 kg when a force of 20 N is applied to it?
MechanicsMechanics - Newton's lawseasy

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