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Physics 2003 NECO Past Questions

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31

The mode of transference of heat which does not require any material medium is

  • A. conduction
  • B. convection
  • C. evaporation
  • D. radiation
  • E. transmission
View Answer & Discuss (2) NECO 2003
32
The area under the curve of a velocity time graph represents
  • A. acceleration
  • B. distance covered
  • C. instantaneous speed
  • D. time taken
  • E. work done
View Answer & Discuss NECO 2003
33
A body is launched from the earth’s surface, of radius R, so that it just escapes from the gravitational influence of the earth; If the gravitational constant is G and the mass of the earth is M, what is the escape velocity of the boby.
  • A. \(\sqrt{2GM}\) ÷ R
  • B. \(\frac{\sqrt{2GM}}{R}\)
  • C. \(\frac{\sqrt{2G}}{MR}\)
  • D. \(\sqrt{2GMR}\)
  • E. \(\frac{\sqrt{R}}{2GM}\)
View Answer & Discuss (2) NECO 2003
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34

A ball of mass m moving at velocity u collides with another ball of equal mass at rest. If the two balls move off together after the impact, calculate their common velocity.

  • A. \(\frac{u}{v}\)
  • B. \(\frac{u}{2}\)
  • C. u
  • D. 2u
  • E. \(\frac{u}{m}\)
View Answer & Discuss (7) NECO 2003
35
Which of the following statement(s) is/are correct?

I. When a liquid expands its density falls
II. When a mercury-in-glass thermometer is placed in a hot liquid, the mercury level first descends and then rises.
III. The apparent expansion of a liquid is greater than its real expansion.
  • A. I only
  • B. II only
  • C. III only
  • D. I and II only
  • E. II and III only
View Answer & Discuss (6) NECO 2003
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts