WAEC [Physics] Questions & Answers 2023 will be Posted here on a day before the Exam

By | September 20, 2023

WAEC Physics Questions and Answers 2023/2024. For the sake of students who are seeking for free Physics Practical WAEC question and answer to enable you get a good grade in examination which is scheduled to hold very soon.

If you are among those that registered for the 2023/2024 West African Senior School Certificate Examination. Then begin to prepare for the WASSCE examination by getting this Practical Physics question and answer pdf.

The WAEC Physics questions and answers will be posted here on a day before the Physics examination. Have it in mind that WAEC will not permit you to go in with any material related to Physics when taking the exams. Ensure you study them all properly before you proceed for the examination so you can answer it easily.

WAEC Physics Questions and Answers 2023

The Physics WAEC questions and answers loading ……………………………………

Keep checking this page. The free WAEC Physics questions and answers will be posted here on a day before the examination.

Before then, let’s show you some repeated Physics Practical questions that WAEC can’t do without bringing them out.

The Physics Practical question paper will consist of three areas and general Physics questions namely:

  • Optics
  • Electricity
  • Mechanics

You will be expected to carry out an experiment, take readings and tabulate your values, plot graph, state precautions taken during the experiment, and report observations.

Physics Practical Repeated Questions

1. (a) you are provided with a pendulum bob, a meter rule, a stop watch, a retort stand with clamp and other necessary apparatus.

(i) Suspend the pendulum-bob from the clamp as illustrated in the diagram.

(ii)adjust the pendulum such that AC = L = 90cm.

(iii) Displace the pendulum bob is slightly such that it oscillates in a vertical plane

(iv) Measure and record the time t for 20 complete oscillations.

(iv) Evaluate T and the square root of L

(vi) Repeat the procedure for four other values of L = 80cm, 70cm, 60cm and 50cm.

(vii) Tabulate your readings

(viii) Plot a graph with T on the Vertical axis and square root of L on the horizontal axis.

(ix) Determine the slope, s, of the graph.

(x) Evaluate g = 4n2/S2 (xi) State two precautions taken to ensure accurate results.

(b) (i) Determine from your graph the period of the pendulum for L = 75cm

(ii) A simple pendulum bob is set into simple harmonic motion. Sketch a diagram of the set up and indicate on it; the position of;

(a) Maximum Velocity;

(b) Maximum acceleration of the bob.

2. (a) You are provided with a meter rule, lens, screen, ray box and other necessary apparatus.

(i) Set up the experiment as shown in the diagram above. Measure and record the diameter ao ­­­­of the illuminated object.

(ii) Place the object at a distance x = 25cm from the lens. Adjust the screen until a sharp image is obtained on the screen.

(iii) Measure and record the diameter a, of the image.

(iv) Measure and record the distance v between the lens and the screen.

(v) Evaluate y a/ao , P = 1+y2/y and T = x + y,

(vi) Repeat the procedure for x = 30cm, 35cm, 40cm and 45cm. in each case, determine the corresponding values, a, v, y, P and T,

(vii) Tabulate your results

(viii) Plot a graph of P on the Vertical axis against T on the horizontal axis starting both axes from the origin (0.0).

(ix) Determine the slope, s, of the graph.

(x) Determine the intercept, c, on the horizontal axis.

(xi) Evaluate k = c/2

(xii) State two precautions taken to ensure accurate results.

(b) (i) Explain the statement the focal length of a converging lens is 20cm.

(ii) An object is placed at a distance x from a converging lens of focal length 20cm. If the magnification of the real image formed by the lens is 5, calculate the value of x.

(3) (a) You are provided with an ammeter, resistor, key, meter bridge and other necessary apparatus.

(i) Consider a circuit as shown in the diagram above.

(ii) Close the key and use the jockey to make contact with AB at N such that AN – d = 25cm.

(iii) Read and record the ammeter reading I.

(iv) Evaluate I-1.

(v) Repeat the procedures for values of d = 35cm, 50cm, 65cm, and 80cm. In each case record I and determine I-1.

(vi) Tabulate your results.

(vii) Plot a graph with logI-1 on the vertical axis and d on the horizontal axis.

(viii) Determine the slope, s, of the graph .

(ix) State two precautions taken to obtain accurate results.

(b) (i) Use your graph to determine the value of d = I = 1.5 A. (

ii) State two factors which affect the resistance of a wire.

Physics Practical Answers

1. (a)

Sn Lcm 11 (s) 12(s)

(ix) slope = 1.75-1.00/9.0-4.7 = 0.75/4.3 S/cm = 0.174S/cm

(x) g = 4n2/S2 = 4 x (3.142)2/(0.174)cm/s = 1,303cm/s

(xi) The precautions taken to ensure accurate results.

  • I avoided conical oscillation
  • I avoided zero error on the stopwatch
  • I ensured that the bob did not touch the table.

b(i) When L = 75cm

Square root of L = Square root of 75 = 8.66cm

T = 1.675S

2. (a)

(ix) Slope = 2.9-0.4/90 – 47 = 0.0581

(x) Intercept on the horizontal axis = 40.0cm

(xi) k = c/2 = 40.0/2 = 20.0cm

(xii) Precautions

  • I avoided zero error on the meter rule
  • I avoided parallax error in reading meter rule
  • I made sure the surface of the lens is cleared
  • I made sure that the lens was kept upright

2. (b)

(i) The focal length of a converging lens in 20cm means that the distance between the optical centre and the lens is 20cm.

(ii) 1/x + 1/v = 1/f

m = v/x > 5= v/x

v = 5x

1/x + 1/5x = 1/20

6/5x = 1/20

x = 24cm

3.

(x) Precautions

  • I ensured tight connections
  • I avoided zero error on the ammeter
  • I avoided parallax error when taking reading on the ammeter

(b) (i)

when I = 1.5A

log 1-1 = log [1/15]s

= log 0.67

= 0.174

when log 1-1 = 0.174

d = 10cm

(ii) Factors affecting resistance

  • Thickness of wire
  • The cross-sectional area of the wire
  • Temperature

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