2023 NECO Physics Questions and Answers (obj and essay)

Neco Questions and Answers 2022

NECO Physics 2023


(i) The principle of floatation states that when a body floats with its volume partially above the liquid surface, the quantity of the liquid displaced by the body is equal to the quantity of the submerged portion of the body. As the body is in equilibrium, the buoyant force acting on the body must be equal to its weight.



– Gravity (pulls object downward)

– Buoyant force (pushes object upward). The buoyant force is equal to the weight of the volume of water displaced by the object.


Transverse waves particles of waves move perpendicular in the direction of the wave while in longitudinal waves particles move horizontally in the direction of the wave.



(i) Water waves

(ii) Sound waves


(i) The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.



– Kaleidoscope

– Periscope



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