Energy Changes and Light Behavior
1. Kinetic energy-
•
The energy that an object has because of its
motion
2. Potential energy-
Energy that is stored in an object
1.
Energy that is
stored
in an object is
potential
energy
.
2.
The energy of
motion
is
kinetic
energy.
3.
Electrical
energy can be used to
run appliances
.
4.
Chemical energy
is energy that is
stored inside
matter
(a form of potential energy).
5.
Mechanical energy
is energy an object has due to its
motion
(a form of kinetic energy).
6.
Light energy
is energy that
can be seen
.
7.
Sound energy
is energy that
can be heard
.
8.
Thermal energy
is energy from
heat
.
3. reflection-
Occurs when light waves
bounce off a surface
4. refraction-
Occurs when light waves bend as they
pass from one material to another
2. prism-
A substance that separates white light
into colors
1. light-
A form a energy that can be
seen and travels in waves
1.
Light
is a form of
energy
that you can
see
and
travels in waves.
2.
The
high point
of a
wave
is called a
crest
.
3.
The
low point
of a
wave
is called a
trough
.
4.
The
distance from one crest to the next
crest
is called the
wavelength
.
1.
Reflection-
when light waves
bounce
off
a surface
2.
Refraction-
when light waves pass
through an object and are
bent
as they
go through
3.
Absorption
-when light waves are
taken
into an object
4.
Transmission-
when light waves
pass
through
an object
1.
The
color of an object
depends on the
color of light that it reflects
.
2.
White light
is made up of
all the colors
of the rainbow.
3.
ROY G. BIV
- colors of the rainbow in
order from the
longest to the shortest
wavelength
.
3. volume-
The amplitude, or loudness, of
a sound
4. pitch-
How high or low a sound seems
to a listener
2. vibration-
Very fast back and forth
movement of matter
1. sound-
A form of energy produced by
vibrations
1.
Sound
is
produced by vibrations
of matter. When a
material vibrates
, it
creates sound waves.
2.
The
energy
of the sound wave and the
distance
the
vibration object is
from the listener
are
2 factors
that
determine
the
volume
of the sound.
3.
Frequency
is the
number
of
crests
and
troughs
produced in a given amount of time. Frequency
determines pitch
.
1.
Outer ear
-
part
of the ear
you can see
;
gathers
sound waves
from the air and
funnels them
to the
eardrum.
2.
Eardrum-
thin
flap of skin
that
vibrates
when sound
waves hit it.
3.
Middle ear
- contains
3 tiny bones
that
pick up
vibrations
from the eardrum.
4.
Inner ear-
has
coiled tubes filled with fluid
that
vibrate
causing
nerve cells
to
send signals
to the
brain.
2. convection-
The transfer of thermal energy
by the movement of fluids
1. conduction-
The transfer of thermal energy
from particle to particle between
two objects that are touching
6. Thermal energy-
The kinetic energy of moving
particles of matter
3. heat-
A measure of how much thermal
energy is transferred from a warmer
substance to a cooler substance
5. temperature-
The average kinetic energy of
the particles of a substance
4. radiation-
The transfer of thermal energy
without matter
1.
Thermal energy
is the
kinetic energy
of
tiny moving particles
of matter.
2.
The
hotter
a substance is, the
faster
its particles move. The
colder
the substance, the
slower
its particles move.
3.
Heat
is a measure of how much
thermal energy
is
transferred
from one substance to another.
4.
Thermal energy
is
transferred by conduction, convection, or
radiation
.
5.
In
conduction
,
2 objects
need to
touch
in order to share
thermal energy (ex- hot stove touching a pan).
6.
In
convection
, thermal energy is transferred in
liquids and
gases
(warm air rises, cooler air sinks).
7.
In
radiation
, thermal energy is transferred by
waves without
matter
(ex- heat from the sun travels through space to
Earth).
Explore the concept of energy changes with a focus on kinetic and potential energy. Learn about different forms of energy like electrical, chemical, and thermal. Discover how light behaves through reflection, refraction, and properties of light waves.
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Presentation Transcript
Chapter 14 Energy Changes
Lesson 1: Energy Key Vocabulary
1. Kinetic energy- The energy that an object has because of its motion
2. Potential energy- Energy that is stored in an object
Lesson 14.1 Notes 1. Energy that is stored in an object is potential energy. 2. The energy of motion is kinetic energy. 3. Electrical energy can be used to run appliances. 4. Chemical energy is energy that is stored inside matter (a form of potential energy). 5. Mechanical energy is energy an object has due to its motion (a form of kinetic energy). 6. Light energy is energy that can be seen. 7. Sound energy is energy that can be heard. 8. Thermal energy is energy from heat.
Lesson 2: How Light Behaves Key Vocabulary
3. reflection- Occurs when light waves bounce off a surface
4. refraction- Occurs when light waves bend as they pass from one material to another
2. prism- A substance that separates white light into colors
1. light- A form a energy that can be seen and travels in waves
Lesson 14.2 Notes: Properties of Light 1. Light is a form of energy that you can see and travels in waves. 2. The high point of a wave is called a crest. 3. The low point of a wave is called a trough. 4. The distance from one crest to the next crest is called the wavelength.
Lesson 14.2 Notes: Behavior of Light 1. Reflection- when light waves bounce off a surface 2. Refraction- when light waves pass through an object and are bent as they go through 3. Absorption-when light waves are taken into an object 4. Transmission- when light waves pass through an object
Lesson 14.2 Notes: Colors of Light 1. The color of an object depends on the color of light that it reflects. 2. White light is made up of all the colors of the rainbow. 3. ROY G. BIV- colors of the rainbow in order from the longest to the shortest wavelength.
Lesson 3: Nature of Sound Key Vocabulary
3. volume- The amplitude, or loudness, of a sound
4. pitch- How high or low a sound seems to a listener
2. vibration- Very fast back and forth movement of matter
1. sound- A form of energy produced by vibrations
Lesson 14.3 Notes Sound 1. Sound is produced by vibrations of matter. When a material vibrates, it creates sound waves. 2. The energy of the sound wave and the distance the vibration object is from the listener are 2 factors that determine the volume of the sound. 3. Frequency is the number of crests and troughs produced in a given amount of time. Frequency determines pitch.
Lesson 14.3 Notes How You Hear Sound 1. Outer ear- part of the ear you can see; gathers sound waves from the air and funnels them to the eardrum. 2. Eardrum- thin flap of skin that vibrates when sound waves hit it. 3. Middle ear- contains 3 tiny bones that pick up vibrations from the eardrum. 4. Inner ear- has coiled tubes filled with fluid that vibrate causing nerve cells to send signals to the brain.
Lesson 4: Thermal Energy Key Vocabulary
2. convection- The transfer of thermal energy by the movement of fluids
1. conduction- The transfer of thermal energy from particle to particle between two objects that are touching
6. Thermal energy- The kinetic energy of moving particles of matter
3. heat- A measure of how much thermal energy is transferred from a warmer substance to a cooler substance
5. temperature- The average kinetic energy of the particles of a substance
4. radiation- The transfer of thermal energy without matter
Lesson 14.4 Notes Thermal Energy 1. Thermal energy is the kinetic energy of tiny moving particles of matter. The hotter a substance is, the faster its particles move. The colder the substance, the slower its particles move. Heat is a measure of how much thermal energy is transferred from one substance to another. Thermal energy is transferred by conduction, convection, or radiation. In conduction, 2 objects need to touch in order to share thermal energy (ex- hot stove touching a pan). In convection, thermal energy is transferred in liquids and gases (warm air rises, cooler air sinks). In radiation, thermal energy is transferred by waves without matter (ex- heat from the sun travels through space to Earth). 2. 3. 4. 5. 6. 7.
