Physics WAEC Past Questions

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1411

A ball is dropped from the top of a tower. Due to air resistance,it reaches terminal velocity. Which of the following statement(s) about its motion is/are correct? i. The acceleration of the ball is zero. ii. The net force on the ball is zero. iii. The velocity of the ball increases.

A. i only
B. i and ii only
C. ii and iii only
D. i, ii and iii

View Answer & Discuss (7) WAEC 2016

1412

Which of the following substances lowers the surface tension of water?

A. metal
B. sand
C. detergent
D. paper

View Answer & Discuss (1) WAEC 2016

1413

An object of volume 400cm³ and 2.5gcm^-3 is suspended from a spring balance with half its volume immersed in water. Determine the reading on the spring balance. (Density of water = 1gcm^-3)

A. 1200g
B. 1000g
C. 800g
D. 400g

View Answer & Discuss (2) WAEC 2016

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1414

The diagram given illustrates a force-distance graph for the motion of a wooden block. Determine the work done on the block when moved through a distance of 5m.