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WAEC Physics – Sierra Leone

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Question 271

According to Newton's second law, if the net force on an object doubles while the mass remains constant, what happens to the acceleration?
Forces and Newton's lawsNewton's Laws of Motioneasy

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Question 272

Which of these particles is found in the nucleus of an atom?
Atomic physicsStructure of the Atomeasy

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Question 273

In nuclear physics, what is the main reason a nucleus undergoes radioactive decay?
Nuclear physicsRadioactivityhard

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Question 274

Which of the following correctly states Newton's Third Law of Motion?
Forces and Newton's lawsNewton's lawseasy

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Question 275

A block is pulled horizontally with a force of 20 N and moves 5 m. How much work is done?
Work, energy, powerWork and energyeasy

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Question 276

A metal wire of length 2 m and cross-sectional area 1 mm² stretches by 1 mm under a certain load. What is the strain experienced by the wire?
ElasticityElasticity and tensile stressmedium

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Question 277

Pressure at a depth of 10 m in water (density = 1000 kg/m³) is approximately:
Pressure and fluidsPressure in fluidsmedium

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Question 278

In a series circuit with three resistors each of 4 Ω, what is the total resistance?
Electricity and magnetismElectric circuitseasy

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Question 279

Which phenomenon explains the splitting of white light into its constituent colors by a prism?
Light, OpticsOpticsmedium

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Question 280

Which type of nuclear radiation consists of helium nuclei?
Nuclear physicsNuclear radiationeasy

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