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6.P.3A.1 Types of Energy

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by

Michele Bahm

on 2 November 2016

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Transcript of 6.P.3A.1 Types of Energy

Mechanical Energy
● Gravitational potential energy is
greater
when the
height
of an object is greater because
more
kinetic energy was required to raise the object to the
greater
height.

● Gravitational potential energy is greater when the mass of the object is greater because more kinetic energy is required to lift the
heavier
object.


Gravitational Potential Enegy
Mechanical
Potential
Energy

■ Potential energy is
stored
energy.

■ Mechanical potential energy is related to the
position
of an object.

■ A stretched rubber band has potential energy. This is called
elastic
potential energy.




Mechanical
energy is the energy due to the motion (
kinetic
) and position (
potential
) of an object.

When objects are set in motion or are in a position where they can be set in
motion
, they have mechanical energy.


Mechanical Energy

Chemical
energy is energy stored within the chemical bonds in matter.

● Chemical energy can be
released
, for example in batteries or sugar/food, when these substances react to form
new
substances.

Chemical Energy
Thermal (
Heat
) Energy
● Thermal energy is associated with the
motion
of the particles in a substance.

● All matter is made up of
atoms
(particles) that move
faster
when they heat up.
The faster the particles move, the
higher
the temperature.

● Heat energy is the transfer of
thermal
energy.

● Heat energy always moves
from
hotter objects to
cooler
objects.

● Energy which is transferred through
electromagnetic
waves such as visible
light
, ultraviolet light or X-rays.

Solar
energy is a type of radiant energy.
○ Green
plants
use solar energy during photosynthesis.
○ Most of the energy that we use on Earth originally came from the
Sun
.

● Sources of radiant energy include stars,
light bulbs
, and microwaves

Radiant
Energy
● Electrical energy is the energy flowing in an electric
circuit
.


Sources
of electrical energy include: stored
chemical
energy in
batteries
; solar energy in
solar
cells; fuels or hydroelectric energy in generators.

Electrical
Energy
■ Kinetic energy is the energy an object has due to its
motion
.

■ Mechanical kinetic energy
increases
as an object moves
faster

Mechanical
Kinetic
Energy
Types of Energy
potential
kinetic
■ A
book
on a shelf has potential energy. Since
gravity
can pull the book to the floor, this is called
gravitational
potential energy. The
height
and
mass
of an object affect gravitation potential energy.
Mechanical Potential Energy Continued...
● Examples of this can include, but are not limited to, lifting a book to a height of
2
meters instead of
1
meter; and lifting a
basketball
to a height of one meter and then lifting a
bowling
ball to a height of 1 meter.
Examples of Gravitational Potential Energy
Full transcript