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 1301: 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 1302: A short chain is sometimes attached to the back of a petrol tanker to? Options:
  A) generate more friction
  B) ensure the balancing of the tanker
  C) caution the driver when overspeeding
  D) conduct excess charges to the car
  Show Answer
  The correct answer is D .
• Question 1303: The amount of heat required to raise the temperature of a body is Options:
  A) Thermal energy
  B) thermal conduction
  C) heat loss
  D) specific heat capacity
  E) thermal capacity
  Show Answer
  The correct answer is E .
• Question 1304:

  A generator manufacturing company accidentally made an AC generator instead of a DC generator. To fix this error,

  Options:
  A) the magnetic field needs to be made stronger
  B) the split rings should be replaced with slip rings
  C) the number of turns of the armature coil needs to be decreased
  D) the slip rings should be replaced with split rings
  Show Answer
  The correct answer is D .
• Question 1305:

  A magnetic needle is suspended first at the earth's north magnetic pole and then at a point on the magnetic equator. The respective angles between the needle and the horizontal are

  Options:
  A) 0${}^o$ and 0${}^o$
  B) 60${}^o$ and 60${}^o$
  C) 90${}^o$ and 90${}^o$
  D) 90${}^o$ and 0${}^o$
  Show Answer
  The correct answer is D .
• Question 1306: If the mechanical advantage of a machine is 4. What is its ratio for LOAD to EFFORT? Options:
  A) 4:01
  B) 1:04
  C) 5:01
  D) 2:01
  Show Answer
  The correct answer is A .
• Question 1307:

  ${}_{13}^{27}Al$ + ${}_0^{1}n$ $\Rightarrow$ ${}_{11}^{24}Na$ + X

  Options:
  A) a proton
  B) a gamma ray
  C) a helium particle
  D) an alpha particle
  Show Answer
  The correct answer is D .
• Question 1308: If in a simple pendulum experiment the length of the inextensible string is increased by a factor of four, its period is increased by a factor of Options:
  A) 4
  B) $\frac{\pi }{2}$
  C) $\frac{1}{4}$
  D) 2$\pi$
  E) 2
  Show Answer
  The correct answer is E .
• Question 1309: The image in a pin-hole camera is Options:
  A) errect and formed by refraction through a lens
  B) virtual and formed by dispersion
  C) erect and gets sharper as the hole becomes larger
  D) inverted and formed by the light from each point travelling in a straight line
  Show Answer
  The correct answer is D .
• Question 1310: A particle of mass M which is at rest splits up into two. If the mass and velocity of one of the particles are m and v respectively, calculate the velocity of the second particle Options:
  A) $\frac{mv}{M}$
  B) $\frac{Mv}{M-m}$
  C) $\frac{mv}{M+m}$
  D) $\frac{mv}{M-m}$
  Show Answer
  The correct answer is D .