10th Science Chapter-03 Thermal Physics Creative Question and Answers Part-03
10th Science Chapter-03 Thermal Physics Creative Question and Answers Part-03
01.If heat is given to a body the work done is said to be negative
a) true
b) false
Correct answer
false
02.Total number of atoms per mole is 6.023 x10^23
a) true
b) False
Correct answer
true
03.Increase in area due to heating is called
a) Linear expansion
b) superficial expansion
c) cubical expansion
d) real expansion
Correct answer
cubical expansion
04.The degree of hotness or coldness of a body is called
a) Energy
b) Thermal energy
c) Temperature
d) Heat capacity
Correct answer
Temperature
05.The SI unit of heat energy absorbed or evolved is kelvin
a) true
b) false
Correct answer
false
06.Ideal gases obey Charles Boyle's and Avogadro's laws
a) true
b) False
Correct answer
true
07Heat energy flows from high temperature to low temperature
a) true
b) false
Correct answer
true
08.The value of universal gas constant
a) 3.81 mol^-1 K^-1
b) 8.03 mol^-1 K^-1
c) 1.38 mol^-1 K^-1
d) 8.31 mol ^-1 K^-1
Correct answer
8.31 mol ^-1 K^-1
09.V.n =Constant is Avogadro's law
a) true
b) False
Correct answer
False
10.By convention the work done is taken as +ve when the heat is given to a body
a) true
b) false
Correct answer
true
11.For a given heat in liquid the apparent expansion is more than that of real expansion
a) true
b) false
Correct answer
false
12.The rise in temperature is inversely proportional to the amount of heat energy supplied
a) true
b) false
Correct answer
false
13.Temperature is a vector quantity
a) true
b) false
Correct answer
false
14.In which process heat is transferred directly from one molecule to other?
a) Conduction
b) Convection
c) Radiation
d) All the above
Correct answer
All the above
15.Ideal gases do not obey Avogadro's law
a) true
b) False
Correct answer
False
16..The amount of heat energy required to rise the temperature of 1 gram of water through 1 C is
a) One kilo calorie
b) One joule
c) One kelvin
d) One calorie
Correct answer
One calorie
17..Linear expansion is the change in when object is heated or cooled
a) length
b) area
c) volume
d) density
Correct answer
length
18..Which of e following has the fastest process of heat transfer
a) Conduction
b) Convection
c) Radiation
d) all the above
Correct answer
Radiation
19..If a substance is heated or cooled, the change in mass of that substance is
a) Positive
b) negative
c) Zero
d) none of the above
Correct answer
Zero
20.Temperature is a property ehich determiam
a) amount of heat a body contains
b) total absolute energy a body has
c) direction of flow of heat
d) thermal energy
Correct answer
direction of flow of heat
21.When heat energy is supplied there is decrease in dimension of the object which is called thermal expansion
a) true
b) false
Correct answer
false
