1988 WAEC SSCE Physics Past Questions

1988

An electron charge 1.6 x 10-19C is accelerated in vacuum from rest at zero volt towards a plate at 40k V. Calculate the kinetic energy of the electron

1988

During the same interval, it is observed that a train travels the same distance as does a lorry. The two vehicles therefore have the same

1988

Which of the following explains the concave meniscus of water in a clean glass tube? the

1988

Two radioactive elements X and Y have half-lives of 100 and 50 years respectively. Samples of X and Y initially contain equal number of atoms. What is the ratio of the number of the remaining atoms of X to that of Y afte…

1988

Local actions is normally prevented in a simple electric cell by

1988

A ball of mass 0.5kg moving at 10ms-1 collides with another ball of equal mass at rest. If the two balls move off together after the impact, calculate their common velocity.

1988

When three coplanar and non-parallel forces are in equilibrium, I. they can be represented in magnitude and direction by the three sides of a triangle taken in order. II. their lines of action meet at a point.III. the ma…

1988

A man will exact the greatest pressure on a bench when he

1988

The slope of a striaght line displacement time graph indicates the

1988

Which of the units of the following physical quantities are derived? I. Area II. Thrust III. Pressure IV. Mass

1988

The motion of a body is simple harmonic if the

1988

Which of the following correctly gives the relationship between linear speed V and angular speed ω of a body moving uniformly in a circle of radius r?

1988

A ball is thrown vertically upwards from the ground with an initial velocity of 50ms-1. What is the total time spent by the ball in the air? (g = 10ms-2)

1988

A catapult is used to project a stone. Which of the following energy conversions takes place as the stone is released?

1988

A body is projected into space with an initial velocity V0 at an angle, θ to the horizontal. Which of the following statements is/are correct about its motion?I. The total time of flight is (V0 Cosθ)/g.II. The maximum he…

1988

Which of the following is a reason why a concrete floor feels colder to the bare feet than a mat on the same floor during the rainy season?

1988

The clinical thermometer is characterized by having a

1988

Which of the following cannot be used to measure the temperature of a substance?

1988

Which of the following statments about the gaseous state of matter is not correct? The molecules of a substance is in gaseous state

1988

0.5kg of water at 10oC is completely converted to ice by extracting 188000J of heat from it. If the specific heat capacity of water is 4200J kg-1C-1, calculate the specific latent heat of fusion of ice.

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