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
What causes heat transfer through conduction?
Movement of objects
Vibration of atoms or molecules
Rotation of molecules
Expansion of materials
Which of the following is a good conductor of heat?
Wood
Plastic
Copper
Rubber
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
Which material is a poor conductor of heat?
Aluminum
Glass
Rubber
Copper
What property makes a material a good conductor of heat?
Tightly bound electrons
High density
Presence of free electrons
Low specific heat capacity
How does heat move through a metal rod when one end is heated?
Through fluid movement
Through convection
Through direct contact
Through radiation
Which material feels colder to the touch at room temperature?
Plastic
Metal
Glass
Rubber
What is the main mechanism of heat transfer in a wooden spoon when placed in hot soup?
Convection
Conduction
Radiation
Advection
What type of heat transfer occurs when you feel the warmth of sunlight on your skin?
Conduction
Convection
Radiation
Advection