Physics Heat and Thermodynamics Online Quiz Test MCQs

Here we have a free online quiz which includes mcqs questions and answers related to the topic of Heat and Thermodynamics . All the individuals who are currently preparing for any physics subject related exam or just want to improve their general knowledge related to this topic, should attempt these tests in order to complete their preparation in a short time period with ease.

Physics Heat and Thermodynamics Online Quiz Test MCQs

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Physics

1. For a gas obeying Boyle's law, if the pressure is doubled the volume becomes:

Four times

None of these

One half

Double

Question 1 of 15

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2. First law of thermodynamics is merely a statement of law of conservation of:

Linear momentum

Energy

Angular momentum

Charge

Question 2 of 15

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3. Hotness or coldness of an object is represented in term of:

Chemical energy

Heat

Temperature

None of these

Question 3 of 15

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4. Number of spark plugs needed in diesel engine is:

Five

None of these

Four

Six

Question 4 of 15

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5. Thermal radiations are type of:

Alpha rays

Electrons

Mechanical waves

Electromagnetic waves

Question 5 of 15

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6. The temperature at which all the gases become liquid is called:

-273 K

Absolute zero

273 K

Absolute zero and -273 K

Question 6 of 15

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7. The law of thermodynamics which discusses the condition under which heat energy is converted into an equivalent amount of work is:

None of these

1st

2nd

3rd

Question 7 of 15

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8. A certain engine converts 20% of available heat energy into work. Then its efficiency will be:

None of these

50%

20%

80%

Question 8 of 15

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9. A gas which strictly obeys the gas laws under all conditions of temperatures and pressure is called:

Ideal gas

Real gas

None of these

Inert gas

Question 9 of 15

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10. Absolute zero is considered as that temperature at which:

All gases become liquids

None of these

Water freezezs

All liquid become gases

Question 10 of 15

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11. When two objects come to common temperature, the body is said to be in:

Static equilibrium

None of these

Dynamic equilibrium

Thermal equilibrium

Question 11 of 15

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12. When the disorder of the state of system increases, its entropy:

Decreases

Remain constant

Increases

None of theses

Question 12 of 15

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13. Real gases strictly obey gas laws at:

None of these

Low pressure and high temperature

High pressure and low temperatures

High pressure and high temperatures

Question 13 of 15

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14. One degree of thermodynamics scale of temperature is called:

Kelivin

Farenheit

Radian

Celsius

Question 14 of 15

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15. In an isothermal process, the internal energy of the system:

Remains constant

None of these

Decreases

Increases

Question 15 of 15

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