# WAEC Physics Questions and Answers 2023/2024 (Expo Leaks)

WAEC Questions and Answers in Physics: In this article, we will gladly give you free access to WAEC Physics problems from the past. You will know how the WAEC Physics questions are set up, as well as a lot of other information about the exam. All you have to do is pay attention and do what I tell you.

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## WAEC Questions and Answers in Physics 2023

The West African Examinations Council is in charge of the West African Senior School Certificate Examination, which is used to get into college and Jamb in West African countries (WAEC). In one year, more than three million people signed up for the tests that WAEC ran.

In the meantime, go through these past questions and Answers below for the previous years because they are likely questions for WAEC Physics 2023.

## Objectives Past Questions and Answers for WAEC Physics

PHYSICS OBJ:

1-10: AAABACCDDB
11-20: ACCDCBCBAC
21 to 30: CCCBBDDBBB

Theory (1)
Original length = 3m Extension = 310 = 3*3 = 9m

F×e F=ke where k = 982.3NM-² F=982.3*9=8,840.7N

The five numbers that add up to F = 8.840.7N

(2a) Flat metal plates are most often used in solar panels to collect heat for space heating.

(2b) They used a thermal insulator to stop heat from moving between things that were in thermal contact.

(2c) The tube is a piece of equipment that controls the flow of electric current in a high vacuum between electrodes that have been given a difference in electric potential.

(3a) Very clean glass made of silica.

(3) For the optical signal to stay in the core, the core’s refractive index must be higher than that of the cladding.

(4) Escape speed equals VE
The earth’s size is given by R.

Acceleration due to gravity = 10 ms2 Escape speed Be=√2R

VE=√2*10R\sVE=√20R

(5) The angle at horizontal is 30°, and the time of light is 25 seconds.

The speed of the projectile, u, is?
But T=2using sinθ/g

25= 2u*sin30/10 25=0.5u/5

0.5u=125\sU=125/0.5 =250ms-¹

(6)\s(i)Coherence

(ii)Directionality
(iii)Monochromatic

(7ai) Torque is a unit of force that measures how much an object can turn around an axis.

### WAEC Physics Questions and Answers for the Year 2021

(7aii)

Torque is determined by the following: the size of the force

– The length of the lever arm. – The angle between the force and the lever arm.

(7bi)
When something is in free fall, it just means that it falls freely because of the force of gravity. When something is falling freely, air doesn’t stop it.

(7bii)
Tower H is 40 meters tall.
Speed v = 10 m/s, time t =?, speed g = 10 m/s

With the formula S = ut + 1/2gt2

H= ut + 1/2gt^2 40= 10t + 1/2*10t^2 4= t + t^2/2

= t^2 + 2t – 8=0 (Using quadratic equations to solve) = (t+4)(t-2)=0

t+4=0 or t-2=0
t= -4 or t=2

So, the time to fall down is t = 2s.

R.d. of oil = R1 = 0.72 R.d. of water = R2 = 1.00 R.d. of a liquid = R1/R2 = 0.72/1 = 0.72

R.d. = wood density (P1)/water density (P2) = 0.72 = P1/1.00

P1= 0.72*1.00=0.72g/cm³
But the density of wood is the weight of wood divided by its volume.

0.72 = weight of wood (8*8*8)
The weight of the wood is 0.72*512 = 368.64g