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mcqs of
,
1 : How do the molecules in a solid behave?
A
:
(a) Move randomly
B
:
(b) Vibrate about their mean positions
C
:
(c) Rotate and vibrate randomly at their own positions
D
:
(d) Move in a straight line from hot to cold ends.
2 : Temperature of a substance is:
A
:
(a) the total amount of heat contained in it
B
:
(b) the total number of molecules in it
C
:
(c) degree of hotness or coldness
D
:
(d) dependent upon the intermolecular distance
3 : What type of motion is of the molecules in a gas?
A
:
(a) Linear motion
B
:
(b) Random motion
C
:
(c) Vibratory motion
D
:
(d) Rotatory motion
4 : Which one is a better choice for a liquid-in-glass thermometer?
A
:
(a) Is colourless
B
:
(b) is a bad conductor
C
:
(c) Expand linearly
D
:
(d)wets glass
5 : Water is not used as a thermometric
A
:
(a) colourless
B
:
(b) Is a bad conductor
C
:
(c)non-linear explansion
D
:
(d) Wets glass
6 : In Kelvin scale, the temperature corresponding to melting point of iceis
A
:
(a) zero
B
:
(b) 32
C
:
(c)-273
D
:
(d) +273
7 : Heart is the:
A
:
a) total kinetic energy of the molecules
B
:
(b) the internal energy
C
:
(c) work done by the molecules
D
:
(d) the energy in transit
8 : A thermometer has a narrow capillary tube so that it:
A
:
(a) quickly responds to temperature changes
B
:
(b) can read the maximum temperature
C
:
(c) gives a large change for a given temperature rise
D
:
(d) can measure a large range of temperature temperature?
9 : One disadvantage of using alcohol in a liquid-in-glass thermometer.
A
:
(a) it has large expansivity
B
:
(b)it has low freezing point
C
:
(c) it wets the glass tube
D
:
(d)its pxplansion is limear.
10 : The temperature which has the same value on Celsius and Fahrenheit scale is:
A
:
(a)-40
B
:
(b) +40
C
:
(c) +45
D
:
(d) -45
11 : Which thermometer is most suitable for recording rapidly varying temperature?
A
:
(a) Thermocouple thermometer
B
:
(b) Mercury-in-glass laboratory thermometer
C
:
(c) Alcohol-in-glass thermometer
D
:
(d) Mercury-in-glass clinical thermometer
12 : How many properties matter have?
A
:
two
B
:
Three
C
:
Four
D
:
Five
13 : A gas in which most of the atoms are ionized containing positive ions and electrons in known as:
A
:
Matter
B
:
Thermal
C
:
Plasma
D
:
Internal energy
14 : In kelvin scale , the lower fixed point is labeled as:
A
:
0
B
:
100
C
:
273
D
:
373
15 : In Fahrenheit scales. the lower foxed point is labeled as:
A
:
32
B
:
100
C
:
212
D
:
0
16 : Which refers to the direct to the direct proportional relationship between the temperature and scale reading accuses entire range of measurement?
A
:
Linearity
B
:
rang
C
:
Sensitivity
D
:
Thermocouple
17 : The difference between two fixed points in calcium as:
A
:
0
B
:
100
C
:
212
D
:
-213-150C
18 : How many scale temperature have?
A
:
One
B
:
two
C
:
three
D
:
four
19 : For the exact measurement of the hotness of a substance we require an instrument called a :
A
:
thermometer
B
:
Celsius scale
C
:
Fahrenheit scale
D
:
Rang
20 : The sum of kinetic energy and potential energy of moleclues is known as:
A
:
Internal energy
B
:
Thermal energy
C
:
External energy
D
:
Heat energy
21 : in kelvin scale the upper fixed point is labor as:
A
:
o
B
:
100
C
:
273
D
:
373
22 : Th value of absolute zero is:
A
:
-260oC
B
:
-283.15oC
C
:
-2734.15oC
D
:
-293oC
23 : Which factors increase the average kinetic energy of a particles in a substance?
A
:
Decreasing the temperature
B
:
increasing the temperature
C
:
Increasing the temperature
D
:
decreasing the temperature
24 : What is the freezing point of water on the Fahrenheit scale?
A
:
OoF
B
:
32oF
C
:
1000F
D
:
212oF
25 : What is SL unit of heat?
A
:
Joule
B
:
Calorie
C
:
Watt
D
:
Kelvin
26 : Which refers to the span of the thermometer?
A
:
Range
B
:
Sensitivity
C
:
Linearly
D
:
Thermocouple
27 : Which physical property is increase is used in a liquid in gass thermometer?
A
:
Expansion of a liquid with temperature
B
:
thermal conductivity
C
:
Electromagnetic radiation
D
:
Change in electrical resistance
28 : Which pressure does not require a medium for heat transfer?
A
:
Conduction
B
:
Convection
C
:
Radiation
D
:
All require a medium
29 : A thermometer is evaluated its key charactericts which is correct?
A
:
Sensitivity
B
:
Range
C
:
Linearity
D
:
All of these
30 : Plasma differs from gasses because:
A
:
plasma has a definite shape
B
:
Plasma is made up to charged particles
C
:
Plasma particles are tightly packed
D
:
plasma has no limnetic no limnetic energy
31 : Which state of matter have definite shape and definite volume?
A
:
Solids
B
:
Liquids
C
:
Gas
D
:
Plasma
32 : The inter moleclues forces , in case of liquids is :
A
:
Strong
B
:
weak
C
:
both
D
:
none of these
33 : Which state of matter can be squeezed into smaller volume?
A
:
Solids
B
:
Liquids
C
:
Gas
D
:
Plasma
34 : What is the use of thermometer liquid is correct?
A
:
It is visible
B
:
It has low fresszing point
C
:
It does not yet glass
D
:
All of above
35 : The motion of moleclues may be:
A
:
Vibration
B
:
Rotational
C
:
Linear
D
:
All of these
36 : in Fahrenheit scales, the upper fixed point is labeled as:
A
:
32
B
:
200
C
:
212
D
:
0
37 : There exists a mutual force of attraction between the moleclues known as?
A
:
Intermolecular forces
B
:
Matter
C
:
Cohesive forces
D
:
Dipole- Dipole forces
38 : In Fahrenheit scales, the upper fixed point is labeled as:
A
:
100
B
:
0
C
:
-273oC
D
:
180
39 : Plasma in known as a state of matter:
A
:
First
B
:
Second
C
:
Third
D
:
Fourth
40 : Which state of matter have a define shape volume?
A
:
Strong
B
:
Weak
C
:
gas
D
:
Plasma
41 : Moleclues are very close in a body of:
A
:
Plasma
B
:
solids
C
:
Liquids
D
:
gases
Chapter 7 : Thermal Properties of Matter
Physics 9th MCQs || Ilam Ghar
Physics 9th
