Complete 2023 WAEC Physics Alternative Practical Answers is out

Complete 2023 WAEC Physics Alternative Practical Answers is out GET 2023 WAEC Physics  Practical (Alternative A & B) (1st and 2nd Set) Questions and Answers for School Candidates Free of Charge at WASSCE for School Candidates: Free WAEC May/June Physics alternative Practical Answers for School Candidates For Free at WAEC May/June Physics Practical Free EXPO Room (30th - 31st May, 2023).

FREE ANSWER ROOM FOR 2023 WAEC PHYSICS PRACTICALS MAY/JUNE.



COMPLETE 2023 PHYSICS PRACTICAL QUESTIONS AND ANSWERS:

Tuesday, 30th May, 2023

Physics 3 (Practical) (Alternative A)

 – 09:30am – 12:15pm (1st Set),

Physics 3 (Practical) (Alternative A)

 – 12:45pm – 3:30pm (2nd Set)
 
Wednesday, 31st May, 2023

Physics 3 (Practical) (Alternative B)
 
– 09:30am – 12:15pm (1st Set)

Physics 3 (Practical) (Alternative B) 

– 12:40pm – 3:25pm (2nd Set)

WAEC 2023 PHYSICS PRACTICAL ALTERNATIVE B ANSWERS







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2023 WAEC PHYSICS (ALTERNATIVE A & B) PRACTICAL ANSWERS [30TH MAY, 2023]



NUMBER 1

(1bi)
(i)Firstly, the net force acting upon the object must be zero.
(ii)Secondly, the net torque acting upon the object must also be zero.

=====================================

(1axi)
(Pick 2)
(i)I avoid parallax error by placing my eyes vertically on the meter rule when taking my readings.
(ii)I avoid drought.
(iii)I avoid Zero error by making necessary adjustment to the meter rule before starting my practicals.

No 1X


No1 Graph








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2023 WAEC PHYSICS PRACTICAL (ALT. A) ANSWERS:






ALTERNATIVE A

1. Describe how to measure the speed of sound in air using a resonance tube.

Answer: To measure the speed of sound in air using a resonance tube, the following steps should be taken: 

First, determine the length of the resonance tube by measuring the distance between the open ends. Then, place the resonance tube horizontally and observe the resonance frequency. Next, fill the resonance tube with water and measure the new frequency. Finally, calculate the speed of sound in air by using the following formula: Speed of sound = (Frequency x Length of Tube) / 2. 

2. Explain how to determine the value of Young’s modulus of a material using a cantilever beam.

Answer: To determine the value of Young’s modulus of a material using a cantilever beam, the following steps should be taken: 

First, attach a weight to the free end of the cantilever beam. Then, measure the deflection of the beam caused by the weight. Next, calculate the Young’s modulus of the material using the following formula: Young’s Modulus = (Load Applied x Length of Beam) / (Area x Deflection). Finally, measure the area and length of the beam for accuracy.

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2023 WAEC PHYSICS PRACTICAL (ALT. B) ANSWERS:


ALTERNATIVE B

1. Describe how to measure the speed of light using a spectrometer.

Answer: To measure the speed of light using a spectrometer, the following steps should be taken: 

First, attach a light source to the spectrometer. Then, set the wavelength of the light source to a known value. Next, measure the angle of the spectrum created by the spectrometer. Finally, calculate the speed of light using the following formula: Speed of Light = (Wavelength x Angle) / 2.

2. Explain how to calculate the universal gas constant using the ideal gas law.

Answer: To calculate the universal gas constant using the ideal gas law, the following steps should be taken: 

First, measure the pressure, temperature, and volume of the gas. Then, calculate the number of moles of the gas using the ideal gas law formula: PV = nRT. Next, calculate the universal gas constant by using the following formula: Universal Gas Constant = (Pressure x Volume) / (Number of Moles x Temperature). Finally, verify the accuracy of the calculation.


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WAEC 2023 PHYSICS PRACTICAL ANSWERS 




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2023 WAEC PHYSICS PRACTICAL SPECIMEN:


QUESTION 1

- A load of mass 100g concealed and labelled as P
- A load of mass 20g concealed and labelled as Q
- A set of masses m (40g, 50g, 60g, 70g and 80g)
- Metre rule
- 100cm piece of string
- Stop watch
- Helical spring
- Retort stand set-up
- Knife edge


QUESTION 2

- A rectangular block (glass or Perspex) measuring at least 10cm×9cm
- Drawing sheet
- Drawing board
- Four optical pins
- Drawing pins
- Triangular prism
- Half metre rule
- Plane mirror

QUESTION 3

- 1Ω standard resistor labelled R
- Rheostat
- Voltmeter
- Ammeter
- Key/switch
- Source of emf, E=2F
- Ten connecting wires
- Resistance box
- Jockey
- Metre bridge

NOTE that the answers below is 2022 Year 👇👇👇👇👇

2023 WAEC Physics practical questions and answers is now available 

👇👇👇👇👇👇


PHYSICS OBJ
1-10: BCABBDDACA
11-20: CABCBDBDBD
21-30: ABCCBBAADA
31-40: BCDBCBACDA
41-50: DACBDDDBAA

Completed.









WAEC Physics Practical Theory Answers 2022/2033

👇👇👇👇👇👇👇👇👇👇👇

No (1)

Range /PQ/ = u²sin2θ/g
u = 250ms-¹ 
θ =42°
= [250² x sin(2x42°)]/10
= (62,500 x sin84°)/10
= 6250 x 0.9945
= 6215.63m
=========================== 

(2)
(i) They are pure semiconductors with impurities less than 1 and have teravalent crystals 
(ii) Presence of mobile charge carriers is intrinsic property of material 
(iii) No doping or addition of impurities required. 
=========================== 

(4)
F = 50N
k = 100Nm-¹
F = ke
50 = 100e
e = 50/100 = 0.5m
Work done = (1/2)ke²
= 1/2 x 100 x 0.5²
= 25/2
= 12.5joules
=========================== 


No (5a)

A geostationary satellite is an earth orbiting satellite placed at an altitude of approximately 35,800km directly over the equator that revolves in the same direction which the earth rotates.

(5b)
(i) Gas lasers
(ii) Solid-state lasers
===========================

(5a)
A geostationary satellite is an earth-orbiting satellite, placed at an altitude of approximately 35,800 kilometers (22,300 miles) directly over the equator, that revolves in the same direction the earth rotates (west to east).

(5b)
(i) Gas Lasers
(ii) Solid-State Lasers













Waec 2022/2023 physics  Practical questions and answers Expo Runz Answers click on the link below to view the answers



Please note: the physics practicals Questions and answers below are last year 2019 







(1xii)

(i) I avoid parallax error in the metre rule and stop

(ii) I avoid conical oscillation

(3a)

(i) Emf , F=3.00v

Tabulate

R(π) : 2.0,5.0,10.0,12.0,15.0,20.0

V(v): 0.86,0.62,0.43,0.38,0.32,0.25

V^-1(v^-1): 1.1628,1.6129,2.3256,2.6316,3.1280,4

(3ix)

Slope (s) =ΔR/Δv^-1

= 17.5-4.25/3.5-1.5

= 13.25/2

= 6.625

Intercept (c) = -5.75

(3x)

S=Ro alpha (please use the alpha sign)

6.625=0.85(alpha)

alpha = 6.625/0.85=7.79

C= -(Ro +β)

-5.75= - (0.85+β)

β= 5.75-0.85

β=4.9

(3)

(i) I avoided parallax error when taking readings from the

voltmeter

(ii) I ensured that the key was opened when reading is not

been taking

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