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Waec 2005 Physics Past QuestionsQuestion 16:Which of the following quantities has the same unit as energy? A. Power B. Work C. Force D. Momentum Question 17:Which of the following source of energy is renewable? A. Sun B. Petroleum C. Coal D. Uranium Question 18:The lower and upper fixed point of a thermometer are 30mm and 180mm respectively. Calculate the temperature in degrees Celsius when the thermometer reads 45mm A. 10.0oC B. 15.0oC C. 20.0oC D. 30.0oC Question 19:A body of mass m, has a specific heat capacity s, and a heat capacity c. If the temperature of the body changes by \(\theta^oC\), Which of the following equation is correct? A. Ms\(\theta\) = mv-1 B. Ms = C C. Ms = s\(\theta\) D. Ms = c\(\theta\) Question 20:An immersion heater rated 400W, 220V is used to heat a liquid of mass 0.5kg. If the temperature of the liquid increases uniformly at the rate of 2.5oC per second, calculate the specific heat capacity of the liquid. [Assume no heat is lost] A. 1100Jkg-1K-1 B. 320Jkg-1K-1 C. 200Jkg-1K-1 D. 176Jkg-1K-1 |
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