Physics Exam Past Questions and Answers | JAMB, WAEC and NECO

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 341: An inclined plane of angle $\theta$, acting as a simple machine, has a velocity ratio Options:
  A) sin$\theta$
  B) $\frac{1}{\text{sin}\theta }$
  C) cos$\theta$
  D) $\frac{1}{\text{cos}\theta }$
  E) sin$\theta cos\theta$
  Show Answer
  The correct answer is B .
• Question 342: A boat travels due east at a speed 40ms^-1s across a river flow due south at 30ms^-1s. What is the resultant speed of the boat? Options:
  A) 1.3ms^-1
  B) 10.0ms^-1
  C) 50.0ms^-1
  D) 70.0ms^-1
  Show Answer
  The correct answer is C .
• Question 343: Which type of motion do the wheels of a moving car undergo? Options:
  A) Vibratory and translational motion
  B) Random and translational motion
  C) Rotational mand oscillatory motion
  D) Translational and rotational motion
  Show Answer
  The correct answer is D .
• Question 344:

  

  Fig 1 is a graph of force against extension for a spiral spring, the force constant of the spring is given by the

  Options:
  A) slope of the linear prtion of the graph
  B) length of the linear portion of the graph
  C) area under the linear portion of the graph
  D) area under the entire graph
  Show Answer
  The correct answer is A .
• Question 345: A reservoir 500 m deep is filled with a fluid of density 850 kgm^-3. If the atmospheric pressure is 1.05 x 10⁵ Nm^-2, the pressure at the bottom of the reservoir is.
  [g = 10ms^-2] Options:
  A) 4.72 x 10⁶ Nm^-2
  B) 4.36 x 10⁶ Nm^-2
  C) 4.28 x 10⁶ Nm^-2
  D) 4.25 x 10⁶ Nm^-2
  Show Answer
  The correct answer is D .
• Question 346: A 90cm uniform lever has a load of 30N suspended at 15cm from one of its ends. If the fulcrum is at the center of gravity, the force that must be applied at its other end to keep it in horizontal equilibrium is Options:
  A) 15N
  B) 20N
  C) 30N
  D) 60N
  Show Answer
  The correct answer is B .
• Question 347: The frequency of beats produced when two tunning forks of frequencies 258Hz and 270Hz are sounded close to each other Options:
  A) 6Hz
  B) 264Hz
  C) 528Hz
  D) 12Hz
  Show Answer
  The correct answer is D .
• Question 348: Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then Options:
  A) A and B are equal
  B) A is greater than B
  C) the angle between A and B is 0°
  D) the angle between A and B is 90°
  E) the angle between A and B is 180°
  Show Answer
  The correct answer is E .
• Question 349: Calculate the electric field intensity between two plates of potential difference 6.5V when separated by a distance of 35cm. Options:
  A) 18.57NC${}^{-1}$
  B) 53.06NC${}^{-1}$
  C) 2.28NC${}^{-1}$
  D) 0.80NC${}^{-1}$
  Show Answer
  The correct answer is A .
• Question 350: The stylus of a phonograph record exerts a force of 7.7 x 10^-2N on a groove of radius 10^-5m. Compute the pressure exerted by the stylus on the groove Options:
  A) 2.45 x 10⁸ Nm^-2
  B) 3.45 x 10⁸ Nm^-2
  C) 4.90 x 10⁸ Nm^-2
  D) 2.42 x 10⁸ Nm^-2
  Show Answer
  The correct answer is A .