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Physics 2009 NECO Past Questions

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16
The term torque means
  • A. the equilibrant of two concurrent forces
  • B. the moment of a force about an ads
  • C. the resultant of several forces acting on a body in equilibrium
  • D. two coplanar forces at right angle to each other
  • E. two equal and opposite forces whose lines of action do not coincide
View Answer & Discuss (8) NECO 2009
17

A ball of mass 0.1kg moving with a velocity of 20ms-1 is hit by a force which acts on it for 0.02s. If the ball moves off in the opposite direction with a velocity of 25ms-1 , calculate the magnitude of the force.

  • A. 25N
  • B. 125N
  • C. 225N
  • E. 100N
View Answer & Discuss (19) NECO 2009
18
An object of mass 2kg moves for 5s with a uniform velocity of 10ms. What is the magnitude of its acceleration in ms-2
?
  • A. zero
  • B. 2.5
  • C. 10
  • D. 12.5
  • E. 100
View Answer & Discuss (1) NECO 2009
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19
In the electrical method of making a magnet, the polar the magnet formed depends on the
  • A. amount of current passed
  • B. direction of the current
  • C. nature of the material used
  • D. orientation of the magnetic material in space
  • E. size of the magnetic material
View Answer & Discuss (1) NECO 2009
20
Two images Y and X are formed by a plane mirror and a convex mirror respectively. Which of the following is correct about their characteristics?
  • A. Both are inverted
  • B. The magnification of Y is greater than one while that of X is one
  • C. The magnification of Y is one while that of X is less than one
  • D. Y is inverted while X is erect
  • E. Y is real while X is virtual.
View Answer & Discuss NECO 2009
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