Heat and Thermodynamics - SS1 Physics Past Questions and Answers - page 1
Which of the following best defines heat?
The total amount of thermal energy in an object
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The measure of the average kinetic energy of the particles in an object
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The transfer of thermal energy between objects due to a temperature difference
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The measure of the temperature of an object
Temperature is a measure of:
The total thermal energy in an object
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The average kinetic energy of the particles in an object
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The amount of heat transferred between objects
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The volume of an object
Which of the following best describes thermal equilibrium?
The state in which all objects have the same temperature
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The state in which heat transfer stops between objects
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The state in which objects have different temperatures but no heat transfer occurs
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The state in which objects have different temperatures and heat transfer occurs
The specific heat capacity of a substance is defined as:
The amount of heat required to raise the temperature of the substance by 1 degree Celsius
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The amount of heat required to change the phase of the substance
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The amount of heat required to raise the temperature of the substance by 1 Kelvin
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The amount of heat required to completely vaporise the substance
Which of the following materials is a good conductor of heat?
Wood
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Plastic
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Metal
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Glass
Explain the difference between heat and temperature. How are they related?
Which of the following statements best describes thermal expansion?
The contraction of a material due to low temperatures.
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The expansion of a material due to high temperatures.
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The change in the shape of a material without any temperature change.
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The change in volume of a material due to pressure.
Thermal expansion occurs in which of the following directions?
Only in one-dimensional length.
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Only in two-dimensional width.
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Only in a three-dimensional volume.
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In all three dimensions: length, width, and volume.
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The coefficient of linear expansion is a measure of:
The change in length of a material per unit temperature change.
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The change in width of a material per unit temperature change.
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The change in volume of a material per unit temperature change.
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The change in pressure of a material per unit temperature change.
Which of the following materials would have the highest coefficient of linear expansion?
Steel
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Aluminium
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Copper
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Glass
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