NECO Physics Exam Past Questions and Answers

Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.

• Question 401: Which is a stringed Instrument? Options:
  A) drum
  B) flute
  C) piano
  D) saxophone
  E) trumpet
  Show Answer
  The correct answer is C.
• Question 402: The statement that the mechanical advantage of a machine is 3 means that the Options:
  A) efficiency is 33$\frac{1}{3}$%
  B) effort is three times as large as the load
  C) mechanical advantage is 3 times as large as the velocity ratio
  D) ratio of the effort to the load is 1: 3
  E) Velocity ratio is 3
  Show Answer
  The correct answer is D.
• Question 403: What is the energy stored in a 10μ F capacitor if the potential difference between the plates is 40 V? Options:
  A) 2.0 × 10^-4J
  B) 8.0 ×10^-4J
  C) 4.0 × 10^-3J
  D) 8.0 × 10^-3J
  E) 1.6 × 10^-2J
  Show Answer
  The correct answer is D.
• Question 404: What is X in the equation given below? 42He + 94Be → 126C + X Options:
  A) electron
  B) hydrogen
  C) lithium
  D) neutron
  E) proton
  Show Answer
  The correct answer is D.
• Question 405: N.N.P.C. gas cylinder containing 15kg of cooking gas was left open, and the gas emptied in 3.8 minutes, at an average speed of 20 ms^-1. What force was exerted on the gas in the cylinder? Options:
  A) 132N
  B) 13.2N
  C) 1.32N
  D) 0.132N
  E) 0.013N
  Show Answer
  The correct answer is C.
• Question 406: The invisible part of the spectrum of white light consists of Options:
  A) Infra-red and ultra-violet only
  B) Infra-red, ultra-violet and blue only
  C) red, orange and green only
  D) red and violet only
  E) yellow and indigo only
  Show Answer
  The correct answer is A.
• Question 407:

  50cm³ of air at a pressure of 5Nm^-2 is enclosed in a metal tube by a piston. If the piston is pushed in a distance of 10cm, what will the pressure of the air become, if the cross-sectional area of the tube is 2cm^-2? (Assume that the temperature remains constant throughout)

  Options:
  A) 12.5 Nm^-2
  B) 8.7 Nm^-2
  C) 8.3 Nm^-2
  D) 3.8Nm^-2
  E) 3.0Nm^-2
  Show Answer
  The correct answer is C.
• Question 408: Which scientist discovered natural radioactivity? Options:
  A) Enrico Fermi
  B) Henri Becquerel
  C) Marie Curie
  D) Micheal Faraday
  E) Niels Bohr
  Show Answer
  The correct answer is B.
• Question 409: Ice cubes are added to a glass of warm water. The glass and water are cooled by Options:
  A) conduction only
  B) convection only
  C) conduction and convection
  D) convection and radiation
  Show Answer
  The correct answer is C.
• Question 410: A boy ran a distance of 200m in 24s. His average speed was 8.3ms^-1. Which of the following is correct about the units in which the statements above are expressed? Options:
  A) All the units are fundamental.
  B) All the units are derived
  C) All the units except one are S.I units
  D) Two of the units are fundamental and one derived.
  E) None of the units is S.I units.
  Show Answer
  The correct answer is D.