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NSC Physical Sciences – South Africa

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Question 271

What is the acceleration of a 10 kg object subjected to a 50 N force?
MechanicsMechanics - Newton's Second Lawmedium

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Question 272

Which of these is a transverse wave?
Waves and opticsWaves - Types of wavesmedium

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Question 273

Which of the following metals is most reactive with water?
Matter and materialsMatter - Reactivity of metalshard

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Question 274

Which of these reactions represents a combustion reaction?
Chemical changeChemical change - Types of chemical reactionshard

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Question 275

Which of the following is the correct unit for measuring electric current?
Electricity and magnetismElectricity and magnetism - Units and measurementseasy

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Question 276

What is the principle behind the working of a simple lever?
MechanicsMechanics - Simple machineseasy

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Question 277

What type of bond is formed between two atoms sharing electrons equally?
Matter and materialsMatter and materials - Chemical bondingmedium

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Question 278

During a chemical reaction, which of the following represents the substance(s) initially present?
Chemical changeChemical change - Reaction componentseasy

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Question 279

In a circuit, if the resistance is doubled while the voltage remains constant, what happens to the current?
Electricity and magnetismElectricity and magnetism - Ohm's lawmedium

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Question 280

What phenomenon explains why a pencil appears bent when partially submerged in water?
Waves and opticsWaves and optics - Light behaviormedium

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