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