Design an activity to show that metals are good conductors of heat and have high melting points.
Design an activity to show that metals are good conductors of heat and have high melting points.
To show that metals are good conductors of heat and have high melting points, we can perform the following activity:
Marking Scheme
- 13 marks
Hint
Use a metal wire with a high melting point, such as aluminium or copper, to demonstrate the activity.
Quick Oral Answer
Metals are good conductors of heat and have high melting points because of the presence of free electrons, which allow them to conduct heat efficiently.
Analysis & Explanation
This activity demonstrates the physical properties of metals, specifically their ability to conduct heat and have high melting points. The experiment shows that when the metal wire is heated, the temperature of the pin increases rapidly, indicating efficient heat conduction. This is a characteristic property of metals, which makes them useful for various applications, such as cooking vessels and electrical wiring.
Common Mistakes
- 1Using a non-metal wire
- 2Not heating the wire sufficiently
Interesting Facts
Metals are good conductors of heat due to the presence of free electrons.
The melting point of a metal is a measure of its thermal energy.
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2025?
This question carries 3 marks in the CBSE Class 10 Science 2025 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Metals and Non-metals" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Physical Properties of Metals" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2025 paper?
This is a Short Answer question from Section C in the CBSE Class 10 Science 2025 paper.