Physics Past Questions and Answers

Which of the following quantities has the same unit as energy?

A Power
B Work
C Force
D Momentum

Question 1032:

Which of the following source of energy is renewable?

A Sun
B Petroleum
C Coal
D Uranium

Question 1033:

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 10.0^oC
B 15.0^oC
C 20.0^oC
D 30.0^oC

Question 1034:

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 1035:

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 2.5^oC 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