Question

select the statement(s) that are true about conduction and convection. when thermal energy is transferred from one object or area to another using a fluid substance (like air or water), it is called convection. food cooking in a pan on a stove is an example of conduction. a radiator heating a room by moving warm air is an example of convection. convection needs a substance or material to transfer the thermal energy, while conduction does not. conduction occurs when thermal energy transfers from one object to another through direct contact.

Explanation:

• Convection uses fluids (air/water) for heat transfer: first statement is true.
• Pan cooking relies on direct contact (stove→pan→food): second statement is true.
• Radiator heats via warm air movement (fluid): third statement is true.
• Both conduction and convection need a medium; radiation does not: fourth statement is false.
• Conduction requires direct contact: fifth statement is true.

Answer:

The first statement, The second statement, The third statement, The fifth statement