14017216
Description
Mind Map by Tanvi Patel, updated more than 1 year ago
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Created by Tanvi Patel
over 6 years ago
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Energy
- Joules
- A joule is defined as when a
force of 1 newton is applied
to an object and displaces
(move) that object by 1
metre.
- A joule is defined as when a
force of 1 newton is applied
to an object and displaces
(move) that object by 1
metre.
- Units
for
measurement.
- Giga, Mega,
Kilo, Milli,
Micro and
Nano.
- Giga, Mega,
Kilo, Milli,
Micro and
Nano.
- Work
- Energy transfer that
occurs when an object is
moved over a distance.
Measured in Joules
- Energy transfer that
occurs when an object is
moved over a distance.
Measured in Joules
- Kinetic
- A measure of
energy in
movement.
- A measure of
energy in
movement.
- Gravitational
Potential
- Energy stored in
an object based
on how high it is
stored.
- Energy stored in
an object based
on how high it is
stored.
- Elastic
Potential
- Energy stored in
an object due to
deformations
Such as a spring,
rubber band
- Energy stored in
an object due to
deformations
Such as a spring,
rubber band
- Chemical
Potential
- Energy stored in bonds
of chemical When we
use the energy,
chemical bonds break,
releasing the energy for
us to use
- Energy stored in bonds
of chemical When we
use the energy,
chemical bonds break,
releasing the energy for
us to use
- Nuclear
- Energy stored in the
nucleus of particles Nuclear
reactors splits the atom
and use this type of energy
to generate electricity.
- Energy stored in the
nucleus of particles Nuclear
reactors splits the atom
and use this type of energy
to generate electricity.
- Sound
- Another form of kinetic energy
which causes vibrations of
particles in sound. This is the
reason why you can’t hear in
the vacuum of space. There are
no particles for sound to
vibrate in
- Another form of kinetic energy
which causes vibrations of
particles in sound. This is the
reason why you can’t hear in
the vacuum of space. There are
no particles for sound to
vibrate in
- Heat
or
Thermal
- Type of kinetic energy
that exists in the
vibrations of particles.
Reason why
heat generally transfers
the best in solids
- Type of kinetic energy
that exists in the
vibrations of particles.
Reason why
heat generally transfers
the best in solids
- Light
- Light is a electromagnetic wave. A type of wave
that oscillates (moves back and forth) in the
electric and magnetic fields. It does not need
particles to travel through unlike sound. However
light has energy and it can excite electrons and
generate electricity. Eg. Solar panels. Light energy
and heat energy from the sun powers everything
on Earth.
- Light is a electromagnetic wave. A type of wave
that oscillates (moves back and forth) in the
electric and magnetic fields. It does not need
particles to travel through unlike sound. However
light has energy and it can excite electrons and
generate electricity. Eg. Solar panels. Light energy
and heat energy from the sun powers everything
on Earth.
- Electric
- Electrical energy is the
movement of electrons in a
substance. A conductor of
electricity is a substance that
allows electrons to flow
easily through An insulator
of electricity is a substance
that does not allow
electrons to flow through.
- Electrical energy is the
movement of electrons in a
substance. A conductor of
electricity is a substance that
allows electrons to flow
easily through An insulator
of electricity is a substance
that does not allow
electrons to flow through.
- Energy Transfer
- Energy transfer represents
the ability of energy to
move from one place to
another. Electricity can be
transferred over a large
distance very quickly with
minimal energy lost. No
other forms of energy can
match electricity in that
regard.
- Energy transfer represents
the ability of energy to
move from one place to
another. Electricity can be
transferred over a large
distance very quickly with
minimal energy lost. No
other forms of energy can
match electricity in that
regard.
- Energy
Trtansformations
- Energy transformation
represents the change of energy
from one form to another.
Sometimes it is referred to as
energy conversion. A light bulb
transforms electrical energy
into light and heat A fan
transforms electrical energy
into kinetic energy and sound
- Energy transformation
represents the change of energy
from one form to another.
Sometimes it is referred to as
energy conversion. A light bulb
transforms electrical energy
into light and heat A fan
transforms electrical energy
into kinetic energy and sound
- Conservation of Energy
- Energy cannot be created or
destroyed. It can only be converted
(transformed) from one form to
another. It means that we don’t just
magically create energy. We must
have gotten it from another source.
- Energy cannot be created or
destroyed. It can only be converted
(transformed) from one form to
another. It means that we don’t just
magically create energy. We must
have gotten it from another source.
- Energy
Efficiency
- When a device converts energy from one form
to another, some energy is always produced
in an unwanted form. A light bulb
will produce heat as the unwanted energy
Efficiency represents how effective the device
is at converting energy into the wanted form.
Efficient light will produce mainly light energy
and very little heat energy. Efficient car will
produce mainly kinetic energy and very little
heat and sound energy.
- When a device converts energy from one form
to another, some energy is always produced
in an unwanted form. A light bulb
will produce heat as the unwanted energy
Efficiency represents how effective the device
is at converting energy into the wanted form.
Efficient light will produce mainly light energy
and very little heat energy. Efficient car will
produce mainly kinetic energy and very little
heat and sound energy.
- Conduction
- Heat energy is transferred through a
solid by the process of conduction.
When particles are heated, they start
to vibrate. The vibrating particles hit
a neighnouring particle and so on.
The heat can therefore transmitted
from one side to another.
- Heat energy is transferred through a
solid by the process of conduction.
When particles are heated, they start
to vibrate. The vibrating particles hit
a neighnouring particle and so on.
The heat can therefore transmitted
from one side to another.
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