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WAEC Physics – Liberia

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Question 91

Which of the following forces is responsible for the centripetal acceleration of a satellite in circular orbit?
Forces and Newton's lawsCircular motion and Newton's lawsmedium

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Question 92

A force of 10 N is applied to move a 5 kg object over 2 meters in 4 seconds. What is the power developed?
Work, energy, powerWork and power calculationsmedium

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Question 93

Which of the following statements about simple harmonic motion (SHM) is true?
Simple harmonic motionOscillationsmedium

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Question 94

The pressure exerted by a fluid at a certain depth depends on which of the following?
Pressure and fluidsFluid pressureeasy

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Question 95

Which law relates the current flowing through a conductor to the voltage across it and the resistance?
Electricity and magnetismElectric circuitseasy

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Question 96

Which phenomenon explains the separation of white light into its constituent colours by a prism?
Light and OpticsProperties of lighteasy

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Question 97

Which of Newton's laws explains why a passenger moves forward in a car when it suddenly stops?
Forces and Newton's lawsNewton's laws of motionmedium

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Question 98

A body moves in a circle of radius 2 m with uniform speed 4 m/s. What is its centripetal acceleration?
Circular motionUniform circular motionmedium

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Question 99

If the pressure at the bottom of a fluid column is 20000 Pa and the fluid density is 1000 kg/m³, what is the height of the fluid column? (Take g=10 m/s²)
Pressure and fluidsFluid pressuremedium

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Question 100

Which of the following is a property of a blackbody?
Temperature and heatThermal radiation and blackbodyhard

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