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Physics

Grade-9

Easy

Question

Copper converts to its liquid form at 1085 degrees Celsius, which is its _____.

Melting point
Boiling point
Condensation temperature
Any of the above

hint Hint:

Matter can change its state upon heating or cooling.

The correct answer is: Melting point

Melting point is the temperature where the Solid converts into liquid.

Related Questions to study

The boiling point of nitrogen is 77.36 K. Its state at – 173 degrees Celsius is ___.

The boiling point of nitrogen is 77.36 K. Its state at – 173 degrees Celsius is ___.

The boiling point of alcohol is 78.37^o Celsius. What is the state of alcohol at 79^o Celsius?

The boiling point of alcohol is 78.37^o Celsius. What is the state of alcohol at 79^o Celsius?

Mercury freezes at around -38.33^o Celsius. What is the state of mercury at 30^o Celsius?

Mercury freezes at around -38.33^o Celsius. What is the state of mercury at 30^o Celsius?

parallel

When a solid is converted to a liquid, its temperature _____.

When a solid is converted to a liquid, its temperature _____.

Steam condenses on _____ its temperature.

Steam condenses on _____ its temperature.

The melting point of ice is ____.

The melting point of ice is ____.

parallel

The state of a substance changes on ____.

The state of a substance changes on ____.

The temperature at which a substance boils is called its _____.

The temperature at which a substance boils is called its _____.

_____ can exist in all the states of matter.

_____ can exist in all the states of matter.

parallel

The coefficient of thermal expansion of a material determines ____.

The coefficient of thermal expansion of a material determines ____.

When the temperature of a liquid decreases, its constituent particles ____.

When the temperature of a liquid decreases, its constituent particles ____.

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

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

parallel

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

parallel

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