Download Energy and Heat

Barnes 10-30-13
Energy is the ability to do work or cause
change.
 It can be transferred from one object to
another.
 Potential Energy is stored energy, or
“energy of position”
 Kinetic Energy is the energy of motion.
Think about the roller coaster. It has both
types of energy.

Lesson 1 Energy conservation and
conversion
Six different types of energy: pg.447-451
• Mechanical= kinetic + potential
• Sound- results from vibration of particles
• Electromagnetic- transmitted as EM waves
• Chemical- stored in chemical bonds
• Thermal/Heat- due to motion of molecules
• Nuclear- comes from atom’s nucleus
Lesson 1 Energy conservation and
conversion
Vocabulary:
pg. 454
• Energy Transformation- when energy
changes from one form to another.
• Law of Conservation of Energy- states
that energy cannot be created or
destroyed, but can change forms.
• Efficiency- the ratio of useful output
energy to input energy.
Lesson 1 Energy conservation and
conversion
Examples of different types of energy:
•Mechanical: moving car
•Sound: hearing a car
•Electromagnetic: x-rays
•Chemical: food
•Thermal: heat
•Nuclear: sun generating energy
Lesson 1 Energy conservation and conversion
Examples….in your own
words!
•Write an example of energy
transformation.
•Write an example of the law of
conservation of energy
•Write an example of efficiency.

https://www.youtube.com/watch?v=i6eKrNCe_E
Enrichment- Build a Roller Coaster
 http://discoverykids.com/games/builda-coaster/


https://www.youtube.com/watch?v=vq
DbMEdLiCs
Lesson 2 Temperature
Vocabulary
•Kinetic theory of matter- states that all
particles that make up matter are constantly in
motion.
•Temperature- a measure of the amount of
kinetic energy of the particles in an object.
•Degrees- equally spaced units between two
points
•Thermometer- instrument used to measure
temperature.
Lesson 2 Temperature
States
of
matter
•Particles of a solid vibrate in
position and are close
together
•Particles of a liquid slide
past each other and
tumble over each other
•Particles of a gas move
quickly and are far apart
Lesson 2 Temperature
Celsius-
Most
commonly
used around
the world
and in
science
Temperature
Kelvin- Used
Scales
by physicists
and units are
“kelvins”.
Developed in
20th century
Fahrenheit-
Used in US and
developed in
1700s
Lesson 2 Temperature
C=(F-32)5/9
F=C(9/5) + 32
K=C + 273.15
What am I?
Lesson 2 Temperature
How is temperature
related to kinetic
energy?
Lesson 3 Thermal Energy and Heat
Vocabulary
• Thermal Energy- total kinetic
energy of all particles in a
substance.
• Heat- the energy transferred from
an object at a higher temperature
to an object at a lower
temperature.
Lesson 3 Thermal Energy and Heat
How is thermal energy different
from temperature?
Temp= average kinetic energy
Thermal= total kinetic energy
more molecules = more thermal energy
Lesson 3 Thermal Energy and Heat
HOT
to
COLD
Lesson 3 Thermal Energy and Heat
Vocabulary
•Calorie- amount of energy needed
to raise the temperature of 1g of
water by 1C. This is one way to
measure heat.
•Conduction- transfer of energy as
heat from one substance to
another through direct contact.
Lesson 3 Thermal Energy and Heat
Vocabulary
•Conductor- A material that
transfers heat very well. Metals are
an example.
•Insulator- Materials that are poor
conductors of heat. Examples
include wood, paper, plastic foam
Lesson 3 Thermal Energy and Heat
Vocabulary
•Convection- The transfer of energy as
heat by the movement of a liquid or
gas. Occurs when cooler, denser
matter replaces a warmer, less dense
mass by pushing it upward.
•Radiation- The transfer of energy by
EM waves.

https://www.khanacademy.org/partnercontent/mit-k12/mit-k12-physics/v/heattransfer

http://www.pbslearningmedia.org/asset/
lsps07_int_heattransfer/
Conductor Conduction Radiation
Lesson 3 Thermal Energy and Heat















Energy transformation
Law of conservation of energy
Efficiency
Kinetic theory of matter
Temperature
Degree
Thermometer
Thermal energy
Heat
Calorie
Conduction
Conductor
Insulator
Convection
Radiation
Barnes 10-30-13