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WAEC PhysicsLiberia

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Question 251

If the wavelength of a wave increases, what happens to its frequency assuming wave speed is constant?
Waves and oscillationsWaves and oscillationsmedium

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Question 252

Which of the following best explains why a metal expands when heated?
Thermal properties of matterThermal properties of matterhard

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Question 253

A block placed on an inclined plane remains at rest. Which force prevents it from sliding down?
Forces and Newton's lawsStatic frictionmedium

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Question 254

A particle undergoing simple harmonic motion has an amplitude of 0.05 m and a frequency of 2 Hz. What is its maximum velocity?
Simple harmonic motionSHM velocitymedium

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Question 255

If the pressure on a confined liquid is increased at one point, the increase in pressure is transmitted equally throughout the liquid. This is an example of:
Pressure and fluidsFluid pressuremedium

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Question 256

In a series circuit containing resistors, the total resistance is:
Electricity and magnetismResistances in seriesmedium

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Question 257

Which nuclear reaction involves the splitting of a heavy nucleus into smaller nuclei?
Nuclear physicsNuclear reactionshard

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Question 258

An object is heated and its volume increases. Which property of matter is being demonstrated?
Thermal properties of matterThermal expansioneasy

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Question 259

Which of the following correctly represents Newton’s Second Law?
Forces and Newton's lawsNewton's Laws of Motioneasy

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Question 260

A block of mass 2 kg is lifted vertically upwards through 3 m. Calculate the work done against gravity. (Take g=10 m/s²)
Work, energy, powerWork and Energyeasy

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