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Online Tests
Physics 9th Class English Medium Unit 7 Online Test MCQs With Answers
Question # 1
Gases and liquids are categorized as.
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Liquids
Gases
Fluids
Solids
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Question # 2
Water is not a used as a thermometric liquid mainly due to.
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Non linear expansion
Clourless
Low boiling point (100 oC)
A bad conductor of heat
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Question # 3
Which state of matter has particles that are highly compressible and can fill any container.
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Plasma
Solid
Gas
Liquid
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Question # 4
Heat is the
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The energy in transit
Total kinetic energy of the molecules
The internal energy
Work done by the olecules
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Question # 5
One disadvantage of using alcohol in a liquid in glass therometer.
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It wets the glass tube
It has large expansivity
It has low freezign point (-112 oC)
Its expansion is linear
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Question # 6
Which of the following is not a form of internal energy.
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Light energy
A kinetic energy of the particles
Potential energy of the particles
Chemical energy of the bonds between the particles
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Question # 7
What happpens to the arrangement of particles when a solid is heated and turns into a liquid
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Particles change their state from solid to gas
Particles move farther apart
Particle sbecome more closely packed
Partcles chagne thier state
Particles start vibrating in fixed positions
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Question # 8
Which thermometer uses voltage to measrue temperature of a hot body.
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Thermocouple
Resistance thermometer
Liquid in glass thermometer
Gas thermometer
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Question # 9
What type of motion is of the molecules in a gas.
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Random motion
Linear motion
Vibratory motion
Rotatory motion
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Question # 10
When an ideal gas is expanded keeping its temperatur econsitant, its internal energy
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Increases
Remains the same
Decreases
Cannot be determined
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Question # 11
In Kelvin scale, the temperature corresponding to melting point of ice is
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+273
-273
32
Zero
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Question # 12
Temperatur eof substance is
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The total amount of heat contained in it
Degree of hotness of coldness
The total nuber of molecules in it
Dependent upon the intermolecular distance
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