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WAEC Physics AI Practice

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Question 291

Which law describes the relationship between voltage, current, and resistance in an electrical circuit?
Electricity and magnetismElectricityeasy

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Question 292

In nuclear physics, what is the process called when a nucleus splits into smaller nuclei releasing energy?
Nuclear physicsNuclear Physics and Radioactivitymedium

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Question 293

A car accelerates uniformly from rest to a velocity of 20 m/s in 5 seconds. What is the acceleration?
Motion (1D and 2D)Motion in one dimensioneasy

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Question 294

What is the power output of a machine that does 500 J of work in 10 seconds?
Work, energy, powerWork and powereasy

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Question 295

A satellite moves in a circular orbit of radius 4,000 km around Earth. If the satellite’s speed is 3,000 m/s, what is its centripetal acceleration?
Circular motionCircular motion and gravitationmedium

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Question 296

In simple harmonic motion, the restoring force is proportional to:
Simple harmonic motionOscillations and simple harmonic motionmedium

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Question 297

Which of the following best explains the greenhouse effect in terms of thermal properties?
Thermal properties of matterThermal properties of matter and heat transfermedium

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Question 298

Which process involves the emission of an alpha particle?
Nuclear physicsRadioactivity and nuclear decayhard

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Question 299

A particle moves in a straight line with a velocity given by v = 3t^2 - 2t + 1 (m/s), where t is in seconds. What is the acceleration of the particle at t = 2 s?
Motion (1D and 2D)Motion and Kinematicsmedium

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Question 300

A metal wire of length 2 m and cross-sectional area 1 mm² is stretched by a force of 100 N. If the wire's Young's modulus is 2 x 10¹¹ Pa, what is the extension produced?
ElasticityElasticity and Young's modulusmedium

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