Past Questions And Answers
What quantity of Silver deposed when 985OOC of electricity is passed through a solution containing silver ons? (Ag = 108 F = 985000)
- A. 1.08g
- B.5.40g
- C. 108g
- D. 10.8g
Which of the following statements about evaporation is not correct?
- A. The rate of evaporation of a liquid varies with temperature
- B. The molecules of an evaporating liquid have an average speed
- C. Evaporation occurs when faster molecules escape from the surface of a liquid
- D. Evaporation takes place inside a liquid.
In the question below, fill the gap with the most appropriate option: Some of the food .... spoilt
- A. is
- B. are
- C. were
- D. have
Why was the development of Nationalist activities slow in the French West African colonies?
View Discussion (0)WAEC 1997 THEORYFrom the words lettered A to D below each of the following sentences, choose the word that is nearest in meaning to the underlined word
In order to keep the peace I had toretract my statement
- A. alter
- B. refine
- C. withdraw
- D. deny
I have no silver and gold, but I give you what I have; in the name of Jesus Christ of Nazareth, walk. This was said by Peter to a lame man______________
- A. carried by four friends
- B. who was also blind
- C. at the gate called Beautiful
- D. at the pool called Bethesda
Find the equation of the perpendicular bisector of the line joining P(2, -3) to Q(-5, 1)
- A. 8y + 14x + 13 = 0
- B. 8y - 14x + 13 = 0
- C. 8y - 14x - 13 = 0
- D. 8y + 14x - 13 = 0
(a) What is a vector quantity?
(b) Three vectors 3 ms\(^{-1}\) N 45° W, 12 ms\(^{-1}\)W and 5 ms\(^{-1}\)S act at a point.
(i) Sketch a vector diagram to illustrate the given information.
(ii) Calculate the resultant of the vectors.
(c) In a laboratory experiment to determine the force constant of a spiral spring, the mass or, the spring was varied and the corresponding extensions were measured and recorded as shown in the table below.
| Mass M/g | Weight W/N | Extension e/cm |
50 100 150 200 250 | 6.5 11.0 15.0 20.0 25.0 |
(i) Copy and complete the table. (Take g = 10 ms\(^{-2}\))
(ii) Plot a graph with weight, W, on the vertical axis and extension, e, on the horizontal axis.
(iii) Using the graph, determine the force constant of the spring.
(iv) Determine the natural length of the spring if its length was 38.0 cm when loaded with 250 g mass.
View Discussion (0)WAEC 2011 THEORY.jpeg)
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Given that a = log 7 and b = log 2, express log 35 in terms of a and b.
- A. a + b + 1
- B. ab - 1
- C. a - b + 1
- D. b - a + 1
factorize m3 - m2 + 2m - 2
- A. (m2 + 1)(m - 2)
- B. (m - 1)(m + 1)(m + 2)
- C. (m - 2)(m + 1)(m - 1)
- D. (m2 + 2)(m - 1)