what are the different forms of energy? lessons/chapter 12.pdf · what are the different forms of...
TRANSCRIPT
What are the
different forms
of energy?
Lesson 1
Heat
Lesson 2
Sound
Lesson 3
Light
Lesson 4
Electricity
Lesson 5
Magnetism
Chapter 12 Menu
heat
temperature
conduction
convection
radiation
thermal
conductivity
Lesson 1 Splash
What is heat?
Heat is thermal energy that flows between
objects due to a difference in temperature.
Lesson 1 a
How does heat travel?
conduction convection radiation
Lesson 1 b
What is thermal conductivity?
Thermal conductivity is the ability
of a material to transfer heat.
Lesson 1 c
When is heat waste?
Cars will stop working if they cannot release their extra heat.
Lesson 1 d
Main Idea
Heat must flow into a candle in order
for it to melt. If heat is flowing into the
candle, it must be cooler than the steel
block.
A candle is placed on a steel block and begins
to melt. How do you know whether the candle
or the steel block is hotter?
Lesson 1 Main Idea Review
conduction
Vocabulary
__________________ is the ability of a material
to transfer heat.
__________________ is thermal energy that
flows between objects due to a difference in
temperature.
__________________ is the passing of heat
through a material while material itself stays in
place.
heat
Thermal conductivity
Heat
Conduction
thermal conductivity
Lesson 1 Vocab Review a
convection
Vocabulary
____________ is the transfer of energy through
electromagnetic rays.
____________ is the flow of thermal energy
through a liquid or gas, which is caused by hot
parts rising and cool parts sinking.
____________ is a measurement of the average
kinetic energy of particles in an object.
radiation temperature
Radiation
Temperature
Convection
Lesson 1 Vocab Review b
An infrared image of a house
shows that the roof is brighter
than the rest of the house. What
does this mean?
The roof is
radiating
more heat
energy.
Convection currents
inside keep bringing hot
air to the roof; the roof
may be heated by
radiation from the Sun.
Draw
Conclusions
End of Lesson
Lesson 1 GO Review
Lesson 1 Vocab a
Lesson 1 Vocab b
Lesson 1 Vocab c
Lesson 1 Vocab d
Lesson 1 Vocab e
Lesson 1 Vocab f
sound wave
medium
vacuum
absorption
frequency
pitch
amplitude
echolocation
Lesson 2 Splash
How is sound produced?
Lesson 2 a
Sound can not
travel in a
vacuum such
as space.
Sounds can travel though
solids, liquids, and gases.
How does sound travel?
Lesson 2 b
What is pitch?
Pitch is how high or low a sound is.
1 2 3 4 5 6 600 Hz
1 2 200 Hz
Lesson 2 c
What is volume?
Volume is the loudness of a sound.
Lesson 2 d
What is echolocation?
Finding objects by using sound
waves is known as echolocation.
Lesson 2 e
How could a stereo playing loudly rattle
dishes?
Main Idea
The vibrations from the speakers could travel
as sound waves through the air and hit the
dishes. The sound energy from the wave
could then vibrate the dishes.
Lesson 2 Main Idea Review
__________ is the transfer of energy when a
wave disappears into a surface.
A __________is the substance through which a
wave travels.
A __________ is a region that contains few or no
particles
__________ is the number of times an object
vibrates per second.
medium frequency
Vocabulary
vacuum
Absorption
absorption
Frequency
Lesson 2 Vocab Review a
_____________ is how high or low a sound is,
and is related to frequency.
_____________ are a series of rarefactions and
compressions traveling through a substance.
Some animals use _____________ to find where
their prey is located.
_____________ is how dense the air is in the
compression or rarefactions compared to normal
air. pitch amplitude
Vocabulary
sound waves
Pitch
echolocation
Sound waves
Amplitude
Lesson 2 Vocab Review b
Should you wear earplugs while
using a vacuum cleaner?
Support your opinion with facts.
The sound of
a vacuum
cleaner is not
loud enough
to damage
your ears.
Earplugs are
not
necessary
when using a
vacuum
cleaner.
Fact or
Opinion
End of Lesson
Lesson 2 GO Review
Lesson 2 Vocab a
Lesson 2 Vocab b
Lesson 2 Vocab c
Lesson 2 Vocab d
Lesson 2 Vocab e
Lesson 2 Vocab f
Lesson 2 Vocab g
Lesson 2 Vocab h
wavelength
photon
translucent
image
refraction
prism
spectrum
electromagnetism
Lesson 3 Splash
What is light?
Light is a wave made from
electric and magnetic energy.
electric wave magnetic wave
Lesson 3 a
How does light make shadows?
Lesson 3 b
How does light bounce and bend?
flat mirror
concave mirror
convex mirror
flat lens
concave lens
convex lens
Lesson 3 c
Why do we see colors?
The band of color in a rainbow, or from light
passing through a prism, is called a spectrum.
Lesson 3 d
Is all light visible?
higher frequency
AM
FM
TV
radio
waves
infrared
visible
light
ultra-
violet
X-rays
gamma
rays
radar
larger wavelength
Lesson 3 e
What makes light able to move through
empty space?
Main Idea
Light is an electromagnetic wave; it
does not need a medium to travel
through.
Lesson 3 Main Idea Review
A __________ is a tiny bundle of energy by
which light travels.
A __________ is the distance between one
peak and the next in a wave.
The band of color in a rainbow, or from light
passing through a prism is called a __________.
An __________ is a “picture” of the light
source that light makes bouncing off a shiny
surface.
wavelength photon
Vocabulary
image spectrum
Lesson 3 Vocab Review a
A _____________ is a cut piece of clear glass in
the form of a triangle or other geometric shape.
________________ is the way in which electric
and magnetic forces interact.
Objects that blur light as it passes through it
are _____________.
The bending of waves as they pass from one
substance into another is called ____________.
translucent refraction electromagnetism prism
Electromagnetism
Vocabulary
Lesson 3 Vocab Review b
Summarize has a
frequency
has a
wavelength
has
amplitude
How does light act like a wave?
End of Lesson
Light
acts like
a wave.
Lesson 3 GO Review
Lesson 3 Vocab a
Lesson 3 Vocab b
translucent (trans·lü΄sәnt) Blurring light as it
passes through. (p. 654)
Lesson 3 Vocab c
Lesson 3 Vocab d
Lesson 3 Vocab e
Lesson 3 Vocab f
Lesson 3 Vocab g
Lesson 3 Vocab h
electricity
static electricity
grounding
electric current
circuit
resistor
Lesson 4 Splash
What is static electricity?
Lesson 4 a
How can electricity flow?
A circuit is formed when an electric
current passes through an unbroken
path of conductors.
Lesson 4 b
What kinds of circuits are there?
series circuit
parallel circuit
Lesson 4 c
How can you use electricity safely?
Lesson 4 d
Why will a comb rubbed with wool pick
up bits of paper?
Main Idea
Electrons from the wool build up on
the comb (static electricity). The comb
picks up paper by attracting the
protons in the paper.
Lesson 4 Main Idea Review
A _______________ is formed when an electric
current passes through an unbroken path of
conductors.
_______________ is the movement of electrons.
_______________ is the buildup of charged
particles.
static electricity electricity
Vocabulary
circuit
Electricity
Static electricity
Lesson 4 Vocab Review a
electric current grounding
Vocabulary
_______________ is a flow of electricity through
a conductor.
An object in an electrical circuit that resists the
flow of electrons is called a _______________.
_______________ occurs when a conductor
shares its excess charge with a much larger
conductor.
resistor
Electric current
Grounding
Lesson 4 Vocab Review b
Sequence An object rubs against another
object or surface.
Electrons are exchanged.
The buildup of electrical charge
attracts the electrons to protons in
the other object.
What happens
as objects rub
together and
form sparks?
End of Lesson
The electrons discharge
through the air, creating a spark
Lesson 4 GO Review
Lesson 4 Vocab a
Lesson 4 Vocab b
Lesson 4 Vocab c
Lesson 4 Vocab d
circuit (sûr΄kit) A loop formed when electric
current passes through an unbroken path of
conductors. (p. 668)
Lesson 4 Vocab e
Lesson 4 Vocab f
magnetism
magnetic field
electromagnet
generator
alternating
current
magnetic
levitation
Lesson 5 Splash
What is magnetism?
Magnetism is the ability of an object to pull on
another object that has the magnetic property.
Lesson 5 a
What are electromagnets?
S
N
N
S
Lesson 5 b
How can magnets produce electricity?
axle
turbine water in
water out
As the coils
spins next to
magnets,
high-voltage
electricity is
generated.
Lesson 5 c
What is magnetic levitation?
train magnets
track magnets
Lesson 5 d
What happens when a bar magnet is
cut in half?
Main Idea
Two bar magnets are formed, each
with a north and south pole.
Lesson 5 Main Idea Review
alternating current
magnetic field
Vocabulary
_________________ is the lifting of an object by
means of magnetic forces.
The directional lines of the magnetic forces
around a magnet are called the
_________________.
_________________ is electric current that
rapidly changes directions.
magnetic levitation
Magnetic levitation
Alternating current
Lesson 5 Vocab Review a
electromagnet magnetism
Vocabulary
An electric circuit that produces a magnetic
field is called an _______________.
_______________ is the ability of an object to
push or pull on another object that has the
magnetic property.
A _______________ is a device that creates
electric current by spinning an electric coil
between the poles of a magnet.
Magnetism
generator
Lesson 5 Vocab Review b
Compare
and Contrast
use
electro-
magnets
speakers
carry
sound
How are electric doorbells and
speakers similar and different?
End of Lesson
doorbells
ring
Lesson 5 GO Review
Lesson 5 Vocab a
magnetic field (mag·net΄ik fēld) A region of
magnetic force around a magnet, represented
by lines. (p. 679)
Lesson 5 Vocab b
Lesson 5 Vocab c
Lesson 5 Vocab d
Lesson 5 Vocab e
magnetic levitation (mag·net΄ik lev΄i·tā΄shәn)
The lifting of an object by means of magnetic
forces. (p. 684)
Lesson 5 Vocab f