What are the three main processes of heat transfer discussed in the chapter?

The three main processes of heat transfer are conduction, convection, and radiation.

Conduction is the process by which heat is transferred from the ___ part of an object to its ___ part through direct contact.

Hotter; colder

True or False: Heat transfer through conduction occurs without any movement of particles.

True; in conduction, heat is transferred through direct contact without the particles moving from their positions.

Fill in the blank: When one end of a metal object is heated, the particles at that end gain energy and ___ more.

Vibrate

How does the Sun influence the water cycle?

The Sun provides heat energy that causes water to evaporate.

True or False: The process of conduction is most efficient in gases compared to solids.

False; conduction is most efficient in solids, especially metals, due to closer particle arrangements.

What process allows heat to transfer along a metal strip when one end is heated?,

Conduction is the process that allows heat to transfer from the hotter part of a material to the cooler part.

True or False: Metals are poor conductors of heat, which is why they are commonly used in cooking utensils.

False. Metals are good conductors of heat.

What is the main reason for the sequential fall of the pins on the metal strip during the heating experiment?

The main reason for the sequential fall of the pins is thermal expansion of the metal strip.

Fill in the blank: Woollen fabrics trap air, which is a ___ conductor, helping to keep us warm.

Poor

List two examples of poor conductors of heat.

Wood and glass are examples of poor conductors of heat.

Multiple Choice: Which of the following materials is a good conductor of heat? A) Wood B) Glass C) Iron D) Porcelain

C) Iron

Materials like wood, glass, clay, and porcelain are known for ___ heat transfer.

Their poor ability to conduct

Why do woollen fabrics help keep us warm?

Woollen fabrics trap air, which is a poor conductor of heat, thus reducing heat loss.

The setup of having two layers of wooden walls with cow dung and mud in between is beneficial in ___ climates.

Extremely cold

True or False: Air is a good conductor of heat.

False; air is a poor conductor of heat.

Hollow bricks used in construction help with insulation because ___.

The air trapped in the hollow spaces is a poor conductor of heat.