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waec-physics-2020

6 followers

48 questions


The depolarizing agent in a Leclanche cell is A. carbon rod...
The depolarizing agent in a Leclanche cell is A. carbon rod B. ammonium chloride C. manganese (IV) oxide D. zinc plate
2 months ago 2 answer(s) 2 votes


Which of the following waves requires a material medium for ...
Which of the following waves requires a material medium for its propagation? A. Radio waves B. Light waves C. Sound waves D. ...
2 months ago 1 answer(s) 2 votes


The average distance moved by a molecules between collisions...
The average distance moved by a molecules between collisions is called A. molecular distance B. intermolecular distance C. mean dista...
2 months ago 1 answer(s) 2 votes


Which of the following machines does not apply to the l...
which of the following machines does not apply to the lever principle? A. claw hammer B. wheelbarrow C. single ...
2 months ago 1 answer(s) 2 votes


How would the capacitance of a parallel plate capacitor be a...
How would the capacitance of a parallel plate capacitor be affected if the distance of separation of its plates is decreased? It will A. increase in ...
2 months ago 1 answer(s) 3 votes


All image formed on a screen is always A. inverted B. magn...
All image formed on a screen is always A. inverted B. magnified C. upright D. virtual
2 months ago 1 answer(s) 2 votes


The quantity of motion of a body is its A. acceleration B....
The quantity of motion of a body is its A. acceleration B. displacement C. momentum D. velocity
2 months ago 1 answer(s) 2 votes


In a collision between two objects, kinetic energy is conser...
In a collision between two objects, kinetic energy is conserved only if A. one of the objects was initially at rest B. potential energy is co...
2 months ago 1 answer(s) 2 votes