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WAEC Physics – Nigeria

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Question 111

What is the net force acting on an object of mass 10 kg accelerating at 3 m/s²?
Forces and Newton's lawsNewton's Second Laweasy

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Question 112

Which of the following best describes work done when a force acts perpendicular to the displacement?
Work, energy, powerWork and Energymedium

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Question 113

A wire stretches by 1 mm when a force of 100 N is applied. If the original length is 2 m and cross-sectional area is 1 mm², what is the stress on the wire?
ElasticityStress and Strainmedium

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Question 114

A liquid has a density of 800 kg/m³. What is the pressure at 5 m depth? (Take g = 10 m/s²)
Pressure and fluidsFluid Pressureeasy

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Question 115

What is the primary cause of the increase in internal energy of a substance when it is heated?
Temperature and heatThermal properties of mattermedium

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Question 116

Which of the following electromagnetic waves has the shortest wavelength?
Light, OpticsElectromagnetic Spectrumhard

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Question 117

In a nuclear reaction, a neutron is emitted. What is the charge of the neutron?
Nuclear physicsNuclear Particlesmedium

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Question 118

An object moves 10 m east and then 10 m west. What is the object's displacement?
Motion (1D and 2D)Displacement and Distanceeasy

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Question 119

Which of Newton's laws explains why a passenger lurches forward when a car suddenly stops?
Forces and Newton's lawsNewton's First Lawmedium

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Question 120

What is the work done when a force of 10 N moves an object 3 m in the direction of the force?
Work, energy, powerWork doneeasy

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