Q. Which law states that energy cannot be created or destroyed, only transformed? (2021)
A.
Zeroth Law
B.
First Law
C.
Second Law
D.
Third Law
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Solution
The First Law of Thermodynamics states that energy cannot be created or destroyed, only transformed.
Correct Answer:
B
— First Law
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Q. Which law states that energy cannot be created or destroyed?
A.
Zeroth law
B.
First law
C.
Second law
D.
Third law
Show solution
Solution
The first law of thermodynamics states that energy cannot be created or destroyed, only transformed.
Correct Answer:
B
— First law
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Q. Which law states that for every action, there is an equal and opposite reaction? (2022)
A.
Newton's First Law
B.
Newton's Second Law
C.
Newton's Third Law
D.
Law of Conservation of Momentum
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Solution
Newton's Third Law states that for every action, there is an equal and opposite reaction.
Correct Answer:
C
— Newton's Third Law
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Q. Which law states that the current through a conductor between two points is directly proportional to the voltage across the two points? (2021)
A.
Ohm's Law
B.
Kirchhoff's Law
C.
Faraday's Law
D.
Ampere's Law
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Solution
Ohm's Law states that the current (I) through a conductor is directly proportional to the voltage (V) across it, given by the formula V = IR.
Correct Answer:
A
— Ohm's Law
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Q. Which law states that the entropy of a perfect crystal approaches zero as the temperature approaches absolute zero?
A.
Zeroth law of thermodynamics
B.
First law of thermodynamics
C.
Second law of thermodynamics
D.
Third law of thermodynamics
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Solution
The Third law of thermodynamics states that the entropy of a perfect crystal approaches zero as the temperature approaches absolute zero.
Correct Answer:
D
— Third law of thermodynamics
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Q. Which law states that the entropy of an isolated system always increases? (2021)
A.
Zeroth law of thermodynamics
B.
First law of thermodynamics
C.
Second law of thermodynamics
D.
Third law of thermodynamics
Show solution
Solution
The second law of thermodynamics states that the entropy of an isolated system will always increase over time.
Correct Answer:
C
— Second law of thermodynamics
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Q. Which law states that the entropy of an isolated system never decreases? (2021)
A.
Zeroth law of thermodynamics
B.
First law of thermodynamics
C.
Second law of thermodynamics
D.
Third law of thermodynamics
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Solution
The second law of thermodynamics states that the entropy of an isolated system never decreases over time.
Correct Answer:
C
— Second law of thermodynamics
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Q. Which law states that the heat absorbed or released by a substance is proportional to the change in temperature? (2021)
A.
Boyle's Law
B.
Charles's Law
C.
Newton's Law of Cooling
D.
Calorimetry
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Solution
Calorimetry states that the heat absorbed or released by a substance is proportional to the change in temperature.
Correct Answer:
D
— Calorimetry
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Q. Which law states that the induced electromotive force (emf) in a closed circuit is proportional to the rate of change of magnetic flux through the circuit?
A.
Faraday's law
B.
Ampere's law
C.
Ohm's law
D.
Lenz's law
Show solution
Solution
Faraday's law states that the induced emf in a closed circuit is proportional to the rate of change of magnetic flux.
Correct Answer:
A
— Faraday's law
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Q. Which law states that the induced electromotive force (emf) in a closed loop is equal to the negative rate of change of magnetic flux through the loop? (2022)
A.
Faraday's Law
B.
Lenz's Law
C.
Ohm's Law
D.
Ampere's Law
Show solution
Solution
Faraday's Law states that the induced emf in a closed loop is equal to the negative rate of change of magnetic flux through the loop.
Correct Answer:
A
— Faraday's Law
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Q. Which law states that the induced electromotive force is proportional to the rate of change of magnetic flux? (2022)
A.
Faraday's Law
B.
Lenz's Law
C.
Ohm's Law
D.
Ampere's Law
Show solution
Solution
Faraday's Law of electromagnetic induction states that the induced electromotive force in any closed circuit is equal to the rate of change of magnetic flux through the circuit.
Correct Answer:
A
— Faraday's Law
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Q. Which law states that the induced EMF in a circuit is proportional to the rate of change of magnetic flux through the circuit? (2022)
A.
Faraday's Law
B.
Lenz's Law
C.
Ohm's Law
D.
Ampere's Law
Show solution
Solution
Faraday's Law states that the induced EMF is proportional to the rate of change of magnetic flux.
Correct Answer:
A
— Faraday's Law
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Q. Which law states that the induced EMF in a closed loop is equal to the negative rate of change of magnetic flux through the loop? (2022)
A.
Faraday's Law
B.
Lenz's Law
C.
Ohm's Law
D.
Ampere's Law
Show solution
Solution
Faraday's Law states that the induced EMF in a closed loop is equal to the negative rate of change of magnetic flux through the loop.
Correct Answer:
A
— Faraday's Law
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Q. Which law states that the pressure of a gas is directly proportional to its temperature at constant volume? (2019)
A.
Boyle's Law
B.
Charles's Law
C.
Gay-Lussac's Law
D.
Avogadro's Law
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Solution
Gay-Lussac's Law states that the pressure of a gas is directly proportional to its temperature at constant volume.
Correct Answer:
C
— Gay-Lussac's Law
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Q. Which law states that the rate of heat transfer through a material is proportional to the temperature difference across it?
A.
Newton's Law of Cooling
B.
Fourier's Law
C.
Stefan-Boltzmann Law
D.
Ohm's Law
Show solution
Solution
Fourier's Law states that the rate of heat transfer through a material is proportional to the temperature difference across it.
Correct Answer:
B
— Fourier's Law
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Q. Which law states that the rate of heat transfer through a material is proportional to the temperature gradient?
A.
Newton's Law of Cooling
B.
Fourier's Law of Heat Conduction
C.
Stefan-Boltzmann Law
D.
Kirchhoff's Law
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Solution
Fourier's Law of Heat Conduction states that the rate of heat transfer through a material is proportional to the temperature gradient.
Correct Answer:
B
— Fourier's Law of Heat Conduction
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Q. Which law states that the rate of heat transfer through a material is proportional to the negative gradient of temperature?
A.
Newton's Law of Cooling
B.
Fourier's Law of Heat Conduction
C.
Stefan-Boltzmann Law
D.
Kirchhoff's Law
Show solution
Solution
Fourier's Law of Heat Conduction states that the rate of heat transfer through a material is proportional to the negative gradient of temperature.
Correct Answer:
B
— Fourier's Law of Heat Conduction
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Q. Which law states that the rate of heat transfer through a material is proportional to the temperature difference? (2022)
A.
Newton's Law of Cooling
B.
Fourier's Law
C.
Stefan-Boltzmann Law
D.
Boyle's Law
Show solution
Solution
Fourier's Law states that the rate of heat transfer through a material is proportional to the temperature difference across it.
Correct Answer:
B
— Fourier's Law
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Q. Which law states that the total energy in an isolated system remains constant?
A.
Law of Conservation of Energy
B.
Newton's First Law
C.
Hooke's Law
D.
Ohm's Law
Show solution
Solution
The Law of Conservation of Energy states that the total energy in an isolated system remains constant.
Correct Answer:
A
— Law of Conservation of Energy
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Q. Which law states that the total energy of an isolated system remains constant?
A.
First law of thermodynamics
B.
Second law of thermodynamics
C.
Zeroth law of thermodynamics
D.
Third law of thermodynamics
Show solution
Solution
The first law of thermodynamics states that the total energy of an isolated system remains constant.
Correct Answer:
A
— First law of thermodynamics
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Q. Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps in the reaction?
A.
First Law of Thermodynamics
B.
Second Law of Thermodynamics
C.
Hess's Law
D.
Gibbs Free Energy
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Solution
Hess's Law states that the total enthalpy change for a reaction is the same, regardless of the number of steps in the reaction.
Correct Answer:
C
— Hess's Law
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Q. Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps taken?
A.
First Law of Thermodynamics
B.
Second Law of Thermodynamics
C.
Hess's Law
D.
Gibbs Free Energy
Show solution
Solution
Hess's Law states that the total enthalpy change for a reaction is the same, regardless of the number of steps taken.
Correct Answer:
C
— Hess's Law
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Q. Which law states that the total entropy of an isolated system can never decrease over time?
A.
Zeroth Law
B.
First Law
C.
Second Law
D.
Third Law
Show solution
Solution
The Second Law of Thermodynamics states that the total entropy of an isolated system can never decrease over time.
Correct Answer:
C
— Second Law
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Q. Which law states that the total momentum of a closed system remains constant?
A.
Newton's First Law
B.
Newton's Second Law
C.
Conservation of Momentum
D.
Conservation of Energy
Show solution
Solution
The Conservation of Momentum states that in a closed system, the total momentum remains constant if no external forces act on it.
Correct Answer:
C
— Conservation of Momentum
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Q. Which law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its components?
A.
Dalton's Law
B.
Boyle's Law
C.
Charles's Law
D.
Avogadro's Law
Show solution
Solution
Dalton's Law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its components.
Correct Answer:
A
— Dalton's Law
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Q. Which law states that the volume of a gas is directly proportional to its temperature at constant pressure?
A.
Boyle's Law
B.
Charles's Law
C.
Avogadro's Law
D.
Ideal Gas Law
Show solution
Solution
Charles's Law states that the volume of a gas is directly proportional to its absolute temperature at constant pressure.
Correct Answer:
B
— Charles's Law
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Q. Which layer of the atmosphere contains the ozone layer? (2020)
A.
Troposphere
B.
Stratosphere
C.
Mesosphere
D.
Thermosphere
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Solution
The ozone layer is located in the Stratosphere, which absorbs and scatters ultraviolet solar radiation.
Correct Answer:
B
— Stratosphere
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Q. Which layer of the Earth is directly beneath the crust?
A.
Mantle
B.
Outer Core
C.
Inner Core
D.
Lithosphere
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Solution
The layer directly beneath the Earth's crust is the mantle.
Correct Answer:
A
— Mantle
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Q. Which layer of the Earth is liquid? (2021)
A.
Crust
B.
Mantle
C.
Outer Core
D.
Inner Core
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Solution
The Outer Core is the only layer of the Earth that is in a liquid state.
Correct Answer:
C
— Outer Core
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Q. Which layer of the Earth is primarily composed of iron and nickel? (2020)
A.
Crust
B.
Mantle
C.
Outer Core
D.
Inner Core
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Solution
The Outer Core is primarily composed of molten iron and nickel, which is responsible for Earth's magnetic field.
Correct Answer:
C
— Outer Core
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