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…
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1999 WAEC SSCE Physics Past Questions
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1999
A pendulum bob executing simple harmonic motion has 2cm and 12Hz as amplitude and frequency respectively. Calculate the period of the motion.
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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)
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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)
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1999
Which of the following statements is not correct?
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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
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1999
The heat capacity of a substance is the energy
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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)
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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
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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)
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1999
Which of the following statements about evaporation is not correct?
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1999
ln order to obtain a sound note of a high pitch from a wire stretched by a constant tension, the wire must be
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1999
Which of the following statements is not correct about long sight?
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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
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1999
Using the diagram above, calculate the effective capacitance of the circuit
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1999
Using the data on the diagram above, calculate the potential difference across the 20- Ω resistor. (Neglect the internal resistance of the cell)
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1999
Thunder is usually heard some seconds after lightning is observed because
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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)
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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)
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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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