Name
Date
Class
Overview
Thermal Energy
Directions: Complete the concept map using the terms listed below.
insulators
radiation
forced-air
electric
conductors
convection
Thermal energy
is transferred by
conduction
whose transfer is
helped by
1.
which is used in all the
conventional heating systems including
3.
solar
and hindered by
and
4.
5.
2.
in the form of
electromagnetic
waves
and
6.
Thermal Energy
17
Name
Date
Class
Section 1 ■ Temperature, Thermal
Energy, and Heat
Section 2 ■ Conduction, Convection,
and Radiation
Directions: In each of the following statements, a term has been scrambled. Unscramble the term and write it
on the line provided.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
If particles move more llsowy the object’s temperature falls.
Conduction can take place in solids, liquids, and sages.
Thermal energy includes both kinetic and ttnepoail energy.
Any material that can flow is lufdi.
Any material that allows thermal energy to pass through
it easily is a roconcutd.
Materials with a high specific heat can absorb thermal
energy without a large hngcae in temperature.
Radiation is the transfer of energy in the form of vaews.
When an object increases in temperature it naigs thermal
energy.
Many conductors, such as silver and copper, are lemtas.
Energy that travels by radiation is often called darinta
greeny.
Insulators, such as wood and air, are poor conductors of
ltmehar rgynee.
The transfer of thermal energy by convection and
conduction both require atterm.
Directions: On the lines provided, explain the differences between conduction, convection, and radiation.
Use the information in the exercise above to help you. Write your answers in complete sentences.
13.
18 Thermal Energy
Name
Date
Class
Section 3 ■ Using Thermal Energy
Directions: Fill in the blanks using the correct terms from the list below.
active
stroke
1.
2.
3.
4.
5.
6.
7.
8.
9.
isolated
conduction
heating systems
thermodynamics
heat pump
passive
thermal energy
is the study of the relationships among thermal energy,
heat, and work.
Most
use fuel or electricity as a source of energy.
A house with large windows on its south side and few windows on its other sides
probably uses a(n)
solar heating system.
Solar collectors are used in buildings that have
solar heating systems.
Fuel burned in a stove or fireplace transfers thermal energy to the surrounding
air by
, convection, and radiation.
Before radiant energy can be converted to thermal energy, it must be changed to
.
The thermal energy of an
system doesn’t change.
A
does work to transfer thermal energy from a
cold area to a warm area.
A
is the movement of a piston up or down.
Directions: The terms in each group below are related. Write a sentence that uses all of the terms in each group
in a way that shows how they are related. Underline each word of the group in your sentences.
10. radiant energy, solar collector, active solar heating system
11. heating system, radiator, conduction
Thermal Energy
19
Name
Date
Class
Key Terms
Thermal Energy
Directions: In each of the following statements, a term has been scrambled. Unscramble the term and write it
on the line provided.
1. The transfer of thermal energy through matter by direct
contact of particles is called docniotucn.
2. The transfer of thermal energy by the movement of
matter is called vecconniot.
3. The type of energy transfer that does not require matter
is iadraniot.
4. Any material in which thermal energy doesn’t flow easily
is an roinsulta.
5. An ntieanrl busmcotoin engine burns fuels inside
chambers called cylinders.
6. Energy from the sun is airdnta neeygr.
7. A device on a building that absorbs radiant energy from
the sun is lraos lleocctro.
8. The thermal energy that is transferred from something
with a higher temperature to something with a lower
temperature is called eath.
9. Thermal energy is converted into mechanical energy by a
thea gennie.
10. A thea umpp moves thermal energy from one location and
transfers it to another location at a higher temperature.
11. The pertreuamet is related to the average kinetic energy of
all the particles in an object.
12. The total energy of the particles in a material is ethrlam
gyeren.
13. The pcciifes thea of a material is the amount of thermal
energy it takes to raise the temperature of 1 kg of the material
1 kelvin.
20 Thermal Energy