1999 WAEC SSCE Physics Past Questions

1999

A trolley of mass 4kg moving on a smooth horizontal platform with a speed of 1.0ms-1 collides perfectly with a stationary trolley of the same mass on the same platform. Calculate the total momentum of the two trolleys im…

1999

A pendulum bob executing simple harmonic motion has 2cm and 12Hz as amplitude and frequency respectively. Calculate the period of the motion.

1999

A 15kg mass, suspended from a ceiling, is pulled aside with a horizontal force, F, as shown in the diagram above. Calculate the value of the tension, T. (g = 10ms-2)

1999

Calculate the heat energy required to change 0.1kg of ice at 0oC to water boiling at 100oC. (Specific heat capacity of water = 4200 J kg-1K-1) (Specific latent heat of fusion of ice = 336,000 J kg-1)

1999

Which of the following statements is not correct?

1999

The temperature of a piece of metal of mass 9 g is raised from 10oC to 110oC when it absorbs 108J of heat energy. Determine the specific heat capacity of the metal in J kg-1K-1

1999

The heat capacity of a substance is the energy

1999

An iron rod of length 50m and at a temperature of 60oC is heated to 70oC. Calculate its new length. (Linear expansivity of iron = 1.2 x 10-5K-1)

1999

The air column in a resonance tube is set into resonance by a vibrating tuning fork. The resultant waves in the air column will be

1999

Calculate the power rating of an immersion heater used for 10 minutes to increase the temperature of 10kg of water by 15K. (Specific heat capacity of water = 4200 J l-1K-1)

1999

Which of the following statements about evaporation is not correct?

1999

ln order to obtain a sound note of a high pitch from a wire stretched by a constant tension, the wire must be

1999

Which of the following statements is not correct about long sight?

1999

The real image of an object formed by a converging lens of focal length 15cm, is three times the size of the object. Calculate the object distance

1999

Using the diagram above, calculate the effective capacitance of the circuit

1999

Using the data on the diagram above, calculate the potential difference across the 20- Ω resistor. (Neglect the internal resistance of the cell)

1999

Thunder is usually heard some seconds after lightning is observed because

1999

If the position of resonance in a resonance tube is 16.50cm from open end of the tube, calculate the distance from the open end to the next position where resonance occurs. (Neglect end-correction)

1999

A 10- Ω coil takes 21 s to melt 10g of ice at 0oC. Assuming no heat losses, determine the current in the coil. (Specific latent heat of fusion of ice = 336 Jg-1)

1999

In a uniform electric field, the magnitude of the force on a charge of 0.2 C is 4N. Calculate the electric field intensity

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