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 371: When some ice cubes are added to a glass of warm water, the glass is cooled by a process of Options:
  A) conduction only
  B) convection only
  C) conduction and convection
  D) conduction and radiation
  E) radiation only
  Show Answer
  The correct answer is C.
• Question 372: The wavelength of a stationary wave is 36.0cm. What is the distance between a node and the next anti-node? Options:
  A) 6.0cm
  B) 9.0cm
  C) 18.0cm
  D) 360cm
  E) 72.0cm
  Show Answer
  The correct answer is B.
• Question 373: What part of the camera corresponds to the iris of the eye? Options:
  A) diaphragm
  B) film
  C) focusing ring
  D) lens
  E) shutter
  Show Answer
  The correct answer is A.
• Question 374: The magnetic effect of a current-carrying coil is NOT utilized in the making of a/an Options:
  A) carbon microphone
  B) electric bells
  C) magnetic relay
  D) telephone earpiece
  E) thermostat
  Show Answer
  The correct answer is E.
• Question 375: An astronaut is walking on the moon where the magnitude of the acceleration due to gravity "g’ is one-sixth that on earth. Compared with their magnitudes on the earth, his mass and weight on the moon are Options:
  A) both less
  B) less and the same respectively
  C) the same and less respectively
  D) the same as on earth
  E) both greater.
  Show Answer
  The correct answer is C.
• Question 376: Which statement is NOT correct about molecules? Options:
  A) The number of molecules in a unit volume of a solid is greater than that in a unit volume of a liquid or gas.
  B) Molecules are made up of atoms
  C) The force of attraction between two molecules of a solid is greater than that between two molecules of a liquid or gas
  D) Molecules of gases are in regular motion
  E) Molecules of a solid vibrate about their mean positions.
  Show Answer
  The correct answer is D.
• Question 377: What is the angular velocity of an object in a horizontal circular path of radius 1.5m with a constant speed of 12ms^-1? Options:
  A) 1.6 rads^-1
  B) 4.0 rads^-1
  C) 8.0 rads^-1
  D) 16.0rads^-1
  E) 32.0 rads^-1
  Show Answer
  The correct answer is C.
• Question 378: A wave is represented by the equation y = 0.5 sin 0.4 Ω(X - 60t), where the distance (X) is measured in centimetres and time (t) in seconds. What is the wave length of the wave? Options:
  A) 0.2cm
  B) 0.4cm
  C) 0.8cm
  D) 5.0cm
  E) 10.0cm
  Show Answer
  The correct answer is D.
• Question 379: A transformer is connected to a 250 V a.c. supply. The primary coil has 5000 turns and the secondary voltage is found to be 10 V. What is the number of turns in the secondary coil? Options:
  A) 100
  B) 150
  C) 200
  D) 250
  E) 300
  Show Answer
  The correct answer is C.
• Question 380: Which statement is TRUE of a block of stone of mass m, with zero momentum? Options:
  A) The acceleration of the stone is non-uniform
  B) The stone is stationary
  C) The stone moves at a constant velocity
  D) The stone moves with maximum velocity
  E) The stone moves with minimum velocity.
  Show Answer
  The correct answer is B.