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Physics

Grade-9

Easy

Question

Given below is a table showing the values of the coefficients of thermal expansions of some materials. Answer the question based on the table.
A bronze and a silver rod are heated to increase their temperatures by the same amounts. Which of them would expand more?

Substance Coefficient of Expansion Per Degree Centigrade

$text Aluminium end text$ $25 cross times 10 to the power of negative 6 end exponent$

$text Brass or Bronze end text$ $19 cross times 10 to the power of negative 6 end exponent$

$text Brick end text$ $9 cross times 10 to the power of negative 6 end exponent$

$text Copper end text$ $17 cross times 10 to the power of negative 6 end exponent$

$text Glass (Plate) end text$ $9 cross times 10 to the power of negative 6 end exponent$

$text Glass (Pyrex) end text$ $3 cross times 10 to the power of negative 6 end exponent$

$text Iron or Steel end text$ $11 cross times 10 to the power of negative 6 end exponent$

$text Lead end text$ $29 cross times 10 to the power of negative 6 end exponent$

$text Quartz end text$ $0.4 cross times 10 to the power of negative 6 end exponent$

$text Silver end text$ $19 cross times 10 to the power of negative 6 end exponent$

Both would expand equally
Bronze
Silver
None

hint Hint:

Expansion is directly propotional to Coefficient of linear expansion

The correct answer is: Both would expand equally

When two identical rods (same length ) are of different material and heated to same rise in temperature, the bronze rod and silver rod will expand equally , since expansion depends on nature of material.

(Coefficient of linear expansion of bronze=silver)

Related Questions to study

Given below is a table showing the values of the coefficients of thermal expansions of some materials. Answer the question based on the table.
Sagar is provided with a brass rod and a lead rod of identical dimensions. He heats the rods through the same temperature increase. Which rod would expand more?

Substance Coefficient of Expansion Per Degree Centigrade

$text Aluminium end text$ $25 cross times 10 to the power of negative 6 end exponent$

$text Brass or Bronze end text$ $19 cross times 10 to the power of negative 6 end exponent$

$text Brick end text$ $9 cross times 10 to the power of negative 6 end exponent$

$text Copper end text$ $17 cross times 10 to the power of negative 6 end exponent$

$text Glass (Plate) end text$ $9 cross times 10 to the power of negative 6 end exponent$

$text Glass (Pyrex) end text$ $3 cross times 10 to the power of negative 6 end exponent$

$text Iron or Steel end text$ $11 cross times 10 to the power of negative 6 end exponent$

$text Lead end text$ $29 cross times 10 to the power of negative 6 end exponent$

$text Quartz end text$ $0.4 cross times 10 to the power of negative 6 end exponent$

$text Silver end text$ $19 cross times 10 to the power of negative 6 end exponent$

Given below is a table showing the values of the coefficients of thermal expansions of some materials. Answer the question based on the table.
Sagar is provided with a brass rod and a lead rod of identical dimensions. He heats the rods through the same temperature increase. Which rod would expand more?

Substance Coefficient of Expansion Per Degree Centigrade

$text Aluminium end text$ $25 cross times 10 to the power of negative 6 end exponent$

$text Brass or Bronze end text$ $19 cross times 10 to the power of negative 6 end exponent$

$text Brick end text$ $9 cross times 10 to the power of negative 6 end exponent$

$text Copper end text$ $17 cross times 10 to the power of negative 6 end exponent$

$text Glass (Plate) end text$ $9 cross times 10 to the power of negative 6 end exponent$

$text Glass (Pyrex) end text$ $3 cross times 10 to the power of negative 6 end exponent$

$text Iron or Steel end text$ $11 cross times 10 to the power of negative 6 end exponent$

$text Lead end text$ $29 cross times 10 to the power of negative 6 end exponent$

$text Quartz end text$ $0.4 cross times 10 to the power of negative 6 end exponent$

$text Silver end text$ $19 cross times 10 to the power of negative 6 end exponent$

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Glass containers may crack when a hot liquid is suddenly poured into them because ____.

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Olive oil is cooled in the freezer. What happens to the kinetic energy of its particles? What does it lead to?

parallel

When the temperature of a substance decreases, it ____.

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parallel

When the temperature of a liquid increases, its particles ____.

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When the temperature of a solid increases, its particles _____.

When the temperature of a solid increases, its particles _____.

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parallel

When the temperature of a substance increases, it ____.

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As a result of thermal expansion, liquids experience a change in _____.

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Thermal expansion occurs in _____.

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parallel

In order to maintain the temperature of an isothermal system constant, ____.

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The picture below represents an ______ process.

The picture below represents an ______ process.

The picture below represents an ______ process.

The picture below represents an ______ process.

parallel

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