Question

1. which transfers heat from one object to another without transferring matter? (1 point)

○ thermal expansion
○ conduction
○ insulation

Explanation:

1. Analyze each option:

• Thermal expansion: It is the increase in volume of a substance due to temperature rise, not heat transfer between objects without matter transfer.
• Conduction: Heat transfer through direct contact of particles (atoms/molecules) without the bulk movement of matter. For example, when you hold a metal rod with one end in fire, heat is conducted to your hand through the rod's particles vibrating and transferring energy, without the rod's matter moving from one end to the other.
• Insulation: It is used to reduce heat transfer, not transfer heat.

1. Based on the definitions, conduction is the process that transfers heat from one object to another without transferring matter.

Answer:

B. conduction (assuming the options are labeled as A. thermal expansion, B. conduction, C. insulation; since the original options are listed as thermal expansion, conduction, insulation, the correct one is conduction)