Question 1:
Which of the following is a physical property of a material?
Explanation: The correct answer is C) Melting point. A melting point is a physical property that describes the temperature at which a solid substance changes into a liquid state. It is a characteristic property of a material.
Question 2:
Which physical property describes a material's ability to conduct electricity?
Explanation: The correct answer is C) Conductivity. Conductivity is a physical property that describes a material's ability to conduct electricity. It depends on the presence of free-moving charges or electrons within the material.
Question 3:
Which physical property measures a material's resistance to deformation?
Explanation: The correct answer is A) Hardness. Hardness is a physical property that measures a material's resistance to deformation, scratching, or penetration. It determines how easily a material can be scratched or dented.
Question 4:
Which physical property describes the ability of a material to return to its original shape after deformation?
Explanation: The correct answer is B) Elasticity. Elasticity is a physical property that describes the ability of a material to return to its original shape after deformation. It determines how much a material can be stretched or compressed and still regain its original form.
Question 5:
Which physical property describes a material's tendency to absorb light without transmitting it?
Explanation: The correct answer is C) Opacity. Opacity is a physical property that describes a material's tendency to absorb light without transmitting it. Opaque materials do not allow light to pass through them and appear to be solid or block the passage of light.
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