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Physics 1998 WAEC Past Questions

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1

which of the following pairs of physical quantities comprises vectors?

  • A. capacitance and inductance
  • B. force ratio and velocity ratio
  • C. friction and momentum
  • D. energy and power
  • E. electric field potential and electric field intensity
View Answer & Discuss (4) WAEC 1998
2
A piece of stone attached to one end pf string is whirled round in a horizontal circle. When the string is suddenly cut, the stone will
  • A. move towards te centre of the circle
  • B. stop moving immediately
  • C. move along a circular path of smaller radius
  • D. fly off in a direction tangential to the circular path
  • E. acquire greater centripetal force
View Answer & Discuss WAEC 1998
3
The term torque means
  • A. the moment
  • B. the resultant of several forces acting on a body in equilibrum
  • C. two equal and oposite forces whose lines of action do not coincide
  • D. two coplaner forces at right angles to each other
  • E. the equilibrant of two concurrent forces
View Answer & Discuss (1) WAEC 1998
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4

A rectangular block of wood floats in water with two-thirds of its volume immersed. When placed in another liquid, it floats with half of its volume immersed. Calculate the relative density of the liquid

  • A. 1.43
  • B. 1.33
  • C. 1.00
  • D. 0.83
  • E. 0.75
View Answer & Discuss (5) WAEC 1998
5
As the end Q of the plank is raised, the component of W, normal to plank, will
  • A. increase
  • B. decrease
  • C. remain the same
  • D. be slightly greater than W
  • E. be independent of w
View Answer & Discuss (4) WAEC 1998
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