Thermal energy II - JSS2 Basic science Past Questions and Answers - page 1
What is heat transfer through conduction?
Heat transfer through direct contact
Heat transfer through radiation
Heat transfer through fluid movement
Heat transfer through magnetic fields
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What causes heat transfer through conduction?
Movement of objects
Vibration of atoms or molecules
Rotation of molecules
Expansion of materials
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Which of the following is a good conductor of heat?
Wood
Plastic
Copper
Rubber
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Why do metals conduct heat well?
Due to tightly bound electrons
Due to high density
Due to low melting point
Due to low melting point
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Which material is a poor conductor of heat?
Aluminum
Glass
Rubber
Copper
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What property makes a material a good conductor of heat?
Tightly bound electrons
High density
Presence of free electrons
Low specific heat capacity
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How does heat move through a metal rod when one end is heated?
Through fluid movement
Through convection
Through direct contact
Through radiation
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Which material feels colder to the touch at room temperature?
Plastic
Metal
Glass
Rubber
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What is the main mechanism of heat transfer in a wooden spoon when placed in hot soup?
Convection
Conduction
Radiation
Advection
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What type of heat transfer occurs when you feel the warmth of sunlight on your skin?
Conduction
Convection
Radiation
Advection
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