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Introduction to Thermal Expansion Video Lecture | Physics for EmSAT Achieve

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FAQs on Introduction to Thermal Expansion Video Lecture - Physics for EmSAT Achieve

1. What is thermal expansion?
Ans. Thermal expansion is the tendency of matter to change in shape, area, and volume in response to a change in temperature.
2. How does thermal expansion affect different materials?
Ans. Different materials have different coefficients of thermal expansion, which determine how much they expand or contract when exposed to temperature changes. For example, metals generally expand more than ceramics.
3. Why is thermal expansion important to consider in construction?
Ans. Thermal expansion is important in construction because it can cause materials to warp, crack, or fail if they are not designed to accommodate the changes in temperature. Failure to account for thermal expansion can lead to costly repairs.
4. How is thermal expansion measured?
Ans. Thermal expansion is typically measured using the coefficient of thermal expansion, which quantifies how much a material will expand or contract for each degree change in temperature.
5. Can thermal expansion be prevented?
Ans. While thermal expansion cannot be completely prevented, it can be managed through proper design and material selection. For example, using expansion joints in structures allows for controlled movement due to thermal expansion and contraction.
208 videos|230 docs|191 tests
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