Transcript Energy - SCHOOLinSITES

Energy
Earth Science – 6th Grade Blue Team
Mrs. Elliott
Do Now Answer:
• Translucent – a condition of matter where
light passes through but is scattered so that
images are not clearly visible.
• Transparent – a condition of matter where
light can pass through without the light
being scattered.
Radiometer
• A radiometer is an energy detector.
• How does the light affect the radiometer? The
radiometers vane spins when it is exposed to light.
• What causes the radiometer to behave as it does?
The radiometer serves as an indicator of radiant
energy. That is, the radiometer spins when it
receives energy produces by an energy source,
such as a lightbulb or the Sun.
Reflection Questions
#2 a-e. Pg. 91 AMSTI BOOK
2. a: Did you see a general pattern in your data? What is the
pattern?
b. What did the patterns in the data tell you?
c. Why might different groups get different results?
d. If the conditions on all planets were the same, except for
their distance from the Sun, how would distance affect the
amount of energy a planet receives from the Sun?
e. Why do you think distance from the Sun affects how much
energy a planet receives?
AMSTI BOOK:
• Read pg 92
Distance and Light
What is Energy?
• Matter is made up of invisibly small
gravitational attraction.
• Energy, on the other hand, possesses name
of these characteristics. Evidence of energy
is everywhere. All you need to do is look
for motion, heat, and light.
The nature of energy ARE very
complex, but it is best described
by these characteristics:
• Energy is the ability to work,
• Work is the application of a force through a
distance (e.g., carrying yourself and a loaded back
pack up a trail),
• Force is that which can put matter into motion or
stop it if it is already moving (e.g., you are
stopped at a stop sign and the car behind you
doesn’t see you stop, and can’t stop before
colliding with your rear bumper, pushing you into
the intersection), and
• Motion is a change in distance or direction with
time (e.g., making a right hand turn).
Energy can be possessed by an
object in two different
ways:Kinetic Energy & Potential
Energy
• If this energy is due to the fact that matter
is moving or in use, it is called kinetic
energy.
• If it is due to the position, structure of
matter, or composition, it is called
potential energy.
Potential Energy is Stored Energy
and Kinetic Energy is matter that
is moving or in use.
Potential
*water behind a dam
(due to its position)
*car parked on a hill
(due to its position)
*wound clock spring
*gasoline or sugar
(due to their chemical
composition)
Kinetic
*falling water
*car rolls down a hill
*clock hands begins to move
*energy appears as
movement of the car or
muscles & as engine or
body heat
Are there different forms of
energy?
• YES! There are 7 forms of energy (F.Y.I.:
•
•
•
•
•
•
•
remember the name MRS CHEN”)
M – mechanical energy (kinetic energy); its
counter part is stored energy (potential energy).
R – radiant energy or sunlight or solar energy
S – sound energy
C – chemical energy
H – heat energy
E – electrical energy
N – nuclear energy
“M” represents potential &
kinetic energy
• They exists in several forms. These are
described in Energy Forms.
Potential Energy
Energy Form
*Chemical
Energy Due To
kind & arrangement
of small particles
Example
Flashlight
battery
*Nuclear
structure of atoms
nucleus
atomic
energy