Transcript Simple Circuits

Energy - ability to do work
Energy can be grouped into six major forms.
Theses are
mechanical,
radiant,
chemical,
thermal,
electrical and
nuclear.
Work, Power, Mechanical
Advantage
Work is the application of force that moves an
object a certain distance. Work=Force * distance
Power is the amount of work being done over a
period of time. Power =Work / time
Mechanical Advantage is an increase in force
provided by a machine.
Energy
Potential Energy is
any form of stored
energy
Energy
Kinetic Energy is
energy in motion.
Fluid Power
 Hydraulics Systems
are those that control
and transmit energy
through liquids.
 Pneumatic Systems
are those that control
and transmit energy
through gases.
Newton’s Laws of Motion
Newton's First Law:
Newton's First Law
states that a body
of mass in a state
of rest tends to
remain at rest and
a body or mass in
motion tends to
remain in motion,
unless acted upon
by another force.
Newton’s Laws of Motion
Newton's Second
Law: Newton's
Second Law states
that an unbalance
or force on a body
tends to produce
an acceleration in
the direction of the
force.
Newton’s Laws of Motion
Newton's Third
Law: Newton's
Third Law states
that for every
acting force
there is an
equal and
opposite
reacting force.
Conservation of Energy
Law of Conservation
of Energy - Energy
cannot be created
nor destroyed,
however it can be
converted from one
form to another
Renewable/Non-Renewable
 Renewable energy:
some forms of energy
are renewable such
as solar energy.
Renewable energy
sources can be
replenished naturally
in a short period of
time.
Renewable/Non-Renewable
Non-renewable
energy. These
energy sources
are considered
nonrenewable
because they can
not be replenished
(made again) in a
short period of
time.
Renewable/Non-Renewable
 Second Law of Thermodynamics -No energy system
can be a 100% efficient.
Simple Machines
Lever:
The lever
magnifies force or
velocity. It is often used
to move heavy loads
with less effort. It is a
rigid object that is used
with an appropriate
fulcrum or pivot point to
multiply the mechanical
force that can be applied
to another object.
Simple Machines
Pulley: A pulley is a
wheel with a groove
along its edge, for
holding a rope or
cable.
Simple Machines
Gear:
Simple Machines
 Incline Plane: The
inclined plane makes
it easier to raise
heavy loads. It is a
ramp that reduces
the force necessary
to overcome the force
of gravity when
changing the
elevation of mass in a
gravitational field.
Simple Machines
 Wheel and Axle:The wheel
and axle (axel) make it
easier to move heavy loads
along. A wheel is a disc- or
torus-shaped object, the
fundamental operation of
which is to transfer linear
motion (that is, going along)
into rotary motion (that is,
going around).