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WAEC Physics – Sierra Leone

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Question 31

A 10 N force moves an object 3 meters in the direction of the force. What is the work done?
Work, energy, powerWork doneeasy

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Question 32

In simple harmonic motion, what is the phase difference between the displacement and velocity?
Simple harmonic motionSHM fundamentalsmedium

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Question 33

The pressure exerted by a fluid at a certain depth depends on:
Pressure and fluidsFluid pressuremedium

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Question 34

Which of the following best explains the phenomenon of total internal reflection?
Light, OpticsTotal internal reflectionmedium

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Question 35

In a capacitor connected to a battery, what happens when the dielectric material between the plates is removed?
Electricity and magnetismCapacitors and dielectricshard

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Question 36

Which nuclear reaction is responsible for the energy produced in the sun?
Nuclear physicsNuclear reactionshard

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Question 37

Which property of a material is described by Young's modulus?
ElasticityYoung's modulusmedium

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Question 38

An object moves in a straight line with constant speed. Which of the following statements is true?
Motion (1D and 2D)Motion in One Dimensioneasy

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Question 39

A force of 10 N acts on a mass of 2 kg. What is the acceleration produced?
Forces and Newton's lawsNewton's Second Laweasy

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Question 40

Which of the following represents the work done when a force of 15 N moves an object through 3 m in the direction of the force?
Work, energy, powerWork Doneeasy

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