### Physics 9 Chapter 8 - Thermal Properties of Matter -17

 1.    In central heating systems, which of the following is used to carry thermal energy through pipes from boiler to radiators?a) Cold water b) Hot waterc) Hot gasd) Cold gas
 2.    A container has 2.5 litres of water at 20°C. How much heat is required to boil the water?a) 80 J b) 84 000 Jc) 840 000 Jd) 4200 J
 3.    What is the quantity of thermal energy absorbed by a body for one kelvin (1 K) increase in its temperature called?a) Latent heat of fusion b) Specific heat capacityc) Heat capacityd) Latent heat of vaporization
 4.    Which of the following material has large specific heat?a) Mercury b) Icec) Waterd) Copper
 5.    What is the formula for heat capacity of a substance?a) Heat capacity = m / c b) Heat capacity = m - cc) Heat capacity = m + cd) Heat capacity = mc
 6.    What is the heat capacity of 5 Kg of water?a) 2100 JK-1 b) 4200 JK-1c) 21000 JK-1d) 42000 JK-1
 7. How much heat is required to increase the temperature of 0.5kg of water from 10oC to 65oC?a) 1155 J b) 115500 Jc) 11.550 Jd) 11550 J
 8.    Matter can be changed from one state to another, when................?a) Both b and c b) Light energy is added to a substancec) Thermal energy is added to a substanced) Thermal energy is removed from a substance
 9.    At which temperature, ice begins to melt?a) 100oC b) 50oCc) 32oCd) 0oC
 10.    At which temperature, water begins to boil? a) 32oC b) 50oCc) 100oCd) 0oC

This is more feedback!
This is the feedback!