Heat Transfer
Temperature and Heat
Thermal Insulation
States of Matter
Energy Conservation
100

What is the process called when heat moves from one object to another by direct contact?


Conduction

100

What is the term for the average kinetic energy of the particles in a substance?


Temperature

100

What material is commonly used to reduce the flow of heat from a house during winter?


Insulation (e.g., fiberglass, foam)

100

What is the state of matter in which particles are tightly packed and vibrate in place?

Solid

100

What is the process called when thermal energy is converted into mechanical energy?


Heat engine

200

Which process is responsible for the transfer of heat through air or liquids?


Convection

200

Which temperature scale is used in most of the world, except the United States?


Celsius

200

What is the main purpose of thermal insulation in buildings?


To keep the heat in during winter and out during summer

200

What is the state of matter where particles are loosely packed and can move past each other?

Liquid

200

How is energy converted in a refrigerator?


Electrical energy is converted into thermal energy to cool the inside.

300

What is the process by which heat travels through space in the form of electromagnetic waves?

Radiation

300

What unit is used to measure temperature in the United States?


Fahrenheit

300

Which material would be a good thermal insulator?
A) Metal
B) Wood
C) Styrofoam
D) Glass


C) Styrofoam

300

What is the state of matter where particles are very spread out and move freely?


Gas

300

In a steam engine, what type of energy is converted into mechanical energy?


Thermal energy

400

What type of material is a poor conductor of heat and is used in insulation?


Insulator (e.g., rubber, fiberglass)

400

When the temperature of a substance increases, what happens to the particles in it?


They move faster.

400

How does double-glazed glass help with insulation?


It traps air between two layers of glass, reducing heat transfer.

400

What happens to the particles in a substance when it changes from a solid to a liquid?


The particles gain energy and start to move more freely.

400

What is the conversion of thermal energy into electrical energy called?


Thermoelectric conversion

500

What is the term for the flow of heat due to the movement of particles in a fluid?


Convection Currents

500

What is the main difference between heat and temperature?

Heat refers to the total energy of all particles, while temperature refers to the average energy of the particles.



500

Why is it important to have insulation in homes in cold climates?


It helps to conserve heat, reducing energy costs, and keeping the living space comfortable.

500

What is the process called when a gas turns into a liquid?

Condensation

500

In a power plant, what is the primary conversion process that occurs to produce electricity?


Thermal energy is converted into mechanical energy, then into electrical energy.

M
e
n
u