Transcript Energy Notes - IHMC Public Cmaps (3)

Energy Notes
What is the ability to cause
a change in matter?
energy
What is the measure of how
much work something can
produce?
energy
What is work?
 Using
force to move
an object
Why is energy not a type of
matter?
 Matter:
Solid, liquid, gas
 Energy:
Ability to move
matter around
What law states that energy can
never be made or destroyed,
but it can change forms?
 Law
of Conservation
of Energy
What do people use energy
for?
 Use
the energy
stored in food to
move, to talk, and
even to sleep
What is kinetic energy?
Energy
in motion
Give an example of kinetic
energy.
 Airplane
 Person
flying
riding a bike
What is potential energy?
 Energy
an object has
because of its
condition or position
 (stored energy)
Give an example of potential
energy.
A
ball sitting on a
desk waiting to fall
A
book on a shelf
waiting to fall
When can something have both
kinetic and potential
energy?
 As
a book falls from
the shelf, it loses
potential energy and
gains kinetic energy
What is the movement of
energy from one place or
object to another?
 Energy
transfer
Give an example of
transferring energy?
 Throwing
a
basketball from
yourself to your
teammate, and then
this person dribbles
the ball.
What is energy that comes
from the Sun?
Solar
Energy
What does “solar” mean?
“of
the sun”
When do people use solar
energy?
Solar-powered
calculators
Energy from the Sun travels
as ____________.
radiation
What are the two types of
radiation?
Light-
We can see
Heat-
We can feel
What would Earth be like
without solar energy?
Ball
of frozen rock
with no life
How is solar energy useful?
 Electricity
for some
buildings
 Heat
water (swimming
pools and home
showers)
What are problems with
solar energy?

expensive

Many places do not have
enough sunny days
What is energy stored in
fuel called?
Chemical
energy
How can it be released, and
what is it when it is not
being used?
 By
a chemical reaction
(like burning)
 When
it is not being
used it is potential
energy
Give an example of a
chemical reaction.
Burning
wood
What energy is the combination
of all the potential and
kinetic energy that
something has?
Mechanical
energy
Give an example of
mechanical energy.

Helicopter moving- Kinetic
Energy

Fuel in tank- Chemical Energy,
which is potential

The combining of both causes
mechanical energy
What energy comes from an
electric current? What is
another name for it?
Electrical
Electricity
energy
Give an example of
electrical energy.
What is energy in the form of
vibrations that travel
through matter?
Sound
energy
Give an example of sound
energy.

Placing hands on radio and
feeling the vibrations

Feeling the vibrations of sounds
with their feet
What is thermal energy?
Heat
energy
What is the transfer of thermal
energy between objects with
different temperatures?
Heat
How does thermal energy
travel?
From
warmer
objects to a
cooler object
What is transferred when
you hold a hot mug?
Thermal
energy
goes from cup to
your hand
What is lost from the same
mug when you hold it?
Energy
is lost in
the mug and
transferred to
your hands.
What is the measurement of the
average kinetic energy of all
the particles in a
substance?
Temperature
What is the most common way
to produce heat by rubbing
things together?
Friction
Give an example of friction.
 Rubbing
your hands
together
 Slamming
brakes
on the car’s
What is a set of parts acting
together as a whole object?
System
Give an example of a
system.
A
burner, a pot,
and water are a
system that
produces thermal
energy.
What is transfer of thermal
energy from one object
directly into another?
conduction
Give an example of
conduction.
 Holding
a hot mug
What is the transfer of thermal
energy through the
movement of a gas or a
liquid?
convection
Give an example of
convection.
A
pot of boiling water
What is the transfer of energy
by waves that move through
matter and space?
radiation
Give an example of
radiation.
 Radiation
Sun
from the
What doesn’t radiation need
that conduction and
convection need?
 Matter
for heat to
travel through
What does conduction
require?
Two
objects
must be in
contact
What does convection
require?
Requires
or a liquid
a gas
What is reflection?
Heat
or light
bounces off an
object
What is anything that slows the
movement of thermal
energy?
insulators
What is anything that allows
thermal emery to move
through it easily called?
conductors
Why is the handle on a spoon in
a glass of hot coffee
extremely hot and the foam
cup is not very hot at all?

Spoon: Metal and good
conductor of heat

Foam Cup: Insulator of heat
What is the best conductor
of heat?
metal
Is a solid, liquid, or gas the
easiest to transfer energy?
solid
What is the poorest thermal
conductor of heat?
Gases
What is hydroelectric
energy?
Moving
water that
can spin to make
electricityHoover Dam
What are fossil fuels and
give some examples.
 Fuels
that formed from
the remains of once-living
things
 Coal,
oil, and natural gas
What are the remains or traces
of past life, and it is found in
sedimentary rock?
Fossils
What is any material that can be
used to satisfy a need?
Resource
What is a resource that, once
used up, cannot be replaced
within a reasonable amount
of time?
Nonrenewable
resource
Give an example of a
nonrenewable resource.
Oil,
gas
coal, natural
What is using less of something
to make the supply last
longer?
conservation
Give an example of
conservation.

Using less hot water

Less electricity
What is a resource that can be
replaced within a
reasonable amount of time?
Renewable
resource
Give an example of a
renewable resource.
Solar
(Sun)
Wind
Energy
What is anything that dirties or
harms the environment?
pollution
What are some forms of air
pollution?
 When
coal, oil, and
natural gas are burned,
the gases are released
into the atmosphere.
What is wind energy?
 Wind
turns windmills
which generate electricity
 Bowling
Green
What are the pros and cons
of wind energy?
 Pros:
 Cons:
No pollution
Costly and take up
large areas of land