Transcript ish.

• Class Expectations
– You can show respect by…
• Listening when the teacher or others are talking.
– One speaker at a time, please raise your hand.
• Please no cross-room conservations during work
time.
– You can be responsible by…
• Staying organized and avoiding distraction.
• Staying focused on task completion.
– You can make good choices by…
• Attending class regularly
• Doing your best and never giving up.
– Be Safe!
• First, last, and always.
Copyright © 2010 Ryan P. Murphy
• Remember!
– Staying together and helping each other get
a great education ensures that we all get
closer to reaching our hopes and dreams.
• Activity! Bungee Jumping!
• Activity! But we will use an egg.
Egg
• Activity! and It’s not a real egg, it’s plastic.
• Activity! …and instead of candy...
• Activity! …and instead of candy...it’s washers
Demonstration of bungee jump gone wrong
by teacher. This is not what you want to
happen to your plastic egg.
Paperclip to Hook on ceiling
Paperclip to Hook on ceiling
String (You create length)
Paperclip to Hook on ceiling
String (You create length)
Elastic
Paperclip to Hook on ceiling
String (You create length)
2 Washers
Elastic
Paperclip to Hook on ceiling
String (You create length)
2 Washers
Elastic
Egg
Paperclip to Hook on ceiling
String (You create length)
2 Washers
Elastic
Egg
Paperclip to Hook on ceiling
String (You create length)
2 Washers
Elastic
Egg
• Bungee Jumping Egg Available Worksheet
Demonstration of bungee jump gone wrong
by teacher. This is not what you want to
happen to your plastic egg.
• The five values that should be considered
before determining the fate of the egg.
– Height of the jump 2.75 m / 9 ft.
– Length of unstretched elastic band 80 cm / 2’8”
– Spring constant (How much the band
stretches)
– Mass of the egg and washers
– Length of rope.
– Height of jump (h) minus the separation
distance (d) between the egg and ground
including the stretched elastic.
• The five values that should be considered
before determining the fate of the egg.
– Height of the jump 2.75 m / 9 ft.
– Length of unstretched elastic band 80 cm / 2’8”
– Spring constant (How much the band
stretches)
– Mass of the egg and washers
– Length of rope.
– Height of jump (h) minus the separation
distance (d) between the egg and ground
including the stretched elastic.
• The five values that should be considered
before determining the fate of the egg.
– Height of the jump 2.75 m / 9 ft.
– Length of elastic band 80 cm / 2’8” ish.
– Spring constant (How much the band
stretches)
– Mass of the egg and washers
– Length of rope.
– Height of jump (h) minus the separation
distance (d) between the egg and ground
including the stretched elastic.
• The five values that should be considered
before determining the fate of the egg.
– Height of the jump 2.75 m / 9 ft.
– Length of elastic band 80 cm / 2’8” ish.
– Spring constant (How much the band
stretches).
– Mass of the egg and washers
– Length of rope.
– Height of jump (h) minus the separation
distance (d) between the egg and ground
including the stretched elastic.
• The five values that should be considered
before determining the fate of the egg.
– Height of the jump 2.75 m / 9 ft.
– Length of elastic band 80 cm / 2’8” ish.
– Spring constant (How much the band
stretches).
– Mass of the egg and washers
Constant:
Changeless / unvarying
– Length
of rope.
in nature
– Height
of jump (h) minus the separation
distance (d) between the egg and ground
including the stretched elastic.
• The five values that should be considered
before determining the fate of the egg.
– Height of the jump 2.75 m / 9 ft.
– Length of elastic band 80 cm / 2’8” ish.
– Spring constant (How much the band
stretches).
– Mass of the egg and washers.
– Length of rope.
– Height of jump (h) minus the separation
distance (d) between the egg and ground
including the stretched elastic.
• The five values that should be considered
before determining the fate of the egg.
– Height of the jump 2.75 m / 9 ft.
– Length of elastic band 80 cm / 2’8” ish.
– Spring constant (How much the band
stretches).
– Mass of the egg and washers.
– Length of rope.
 Mass:
Amount
of the
matter
in an
– Height
of jump
(h) minus
separation
distance
(d) between
and ground
object
(Weightthe
onegg
Earth)
including the stretched elastic.
• The five values that should be considered
before determining the fate of the egg.
– Height of the jump 2.75 m / 9 ft.
– Length of elastic band 80 cm / 2’8” ish.
– Spring constant (How much the band
stretches).
– Mass of the egg and washers.
– Length of string that you determine.
– Height of jump (h) minus the separation
distance (d) between the egg and ground
including the stretched elastic.
• The five values that should be considered
before determining the fate of the egg.
– Height of the jump 2.75 m / 9 ft.
– Length of elastic band 80 cm / 2’8” ish.
– Spring constant (How much the band
stretches).
– Mass of the egg and washers.
– Length of string that you determine.
– Height of jump (h) minus the separation
distance (d) between the egg and ground
including the stretched elastic.
• Follow up questions.
– What did you learn in this activity?
• Please draw a quick sketch of a bungee jumping
egg with a short description of something you
learned next to it.
– If your egg cracked your picture must show this.
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy:
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• The egg moves,
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• The egg moves, makes a sound,
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• The egg moves, makes a sound, must move air
molecules,
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• The egg moves, makes a sound, must move air
molecules, cracks,
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• The egg moves, makes a sound, must move air
molecules, cracks, the washers move across the
floor,
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• The egg moves, makes a sound, must move air
molecules, cracks, the washers move across the
floor, the string and elastic heat up,
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• The egg moves, makes a sound, must move air
molecules, cracks, the washers move across the
floor, the string and elastic heat up, stretch,
• Activity! Bungee Jumping Egg Information
– Law Conservation of Energy: Energy cannot
be created or destroyed, only converted
between one form and another.
• The egg moves, makes a sound, must move air
molecules, cracks, the washers move across the
floor, the string and elastic heat up, stretch, others?
• Activity! Bungee
Jumping Egg
Information
• Activity! Bungee
Jumping Egg
Information
– During a bungee jump,
the stored potential
energy of the egg
(PE = mgh) is converted
into kinetic energy during
the fall (KE = 1/2MV2).
• Activity! Bungee
Jumping Egg
Information
– During a bungee jump,
the stored potential
energy of the egg
(PE = mgh) is converted
into kinetic energy during
the fall (KE = 1/2MV2).
• The kinetic energy is
converted back to potential
energy as the bungee cord
stretches.
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
• PE is in Joules
– Mass of the Object (Kilograms)
– g = gravitational acceleration of the earth (9.8 m/sec2)
– Height above surface (Meters)
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
• PE is in Joules
– Mass of the Object (Kilograms)
– g = gravitational acceleration of the earth (9.8 m/sec2)
– Height above surface (Meters)
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
• PE is in Joules
– Mass of the Object (Kilograms)
– g = gravitational acceleration of the earth (9.8 m/sec2)
– Height above surface (Meters)
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
• PE is in Joules
– Mass of the Object (Kilograms)
– g = gravitational acceleration of the earth (9.8 m/sec2)
– Height above surface (Meters)
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
• PE is in Joules
– Mass of the Object (Kilograms)
– g = gravitational acceleration of the earth (9.8 m/sec2)
– Height above surface (Meters)
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
• PE is in Joules
– Mass of the Object (Kilograms)
– g = gravitational acceleration of the earth (9.8 m/sec2)
– Height above surface (Meters)
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
• PE is in Joules
– Mass of the Object (Kilograms)
– g = gravitational acceleration of the earth (9.8 m/sec2)
– Height above surface (Meters)
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
– (m)ass of the egg and washers + Elastic + String = .032kg
– (g) = (9.8 m/sec2)
– (h) Height = 2.75 Meters
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
– (m)ass of the egg and washers + Elastic + String = .032kg
– (g) = (9.8 m/sec2)
– (h) Height = 2.75 Meters
m
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
– (m)ass of the egg and washers + Elastic + String = .032kg
– (g) = (9.8 m/sec2)
– (h) Height = 2.75 Meters
m
.032 Kg
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
– (m)ass of the egg and washers + Elastic + String = .032kg
– (g) = (9.8 m/sec2)
– (h) Height = 2.75 Meters
m
g
.032 Kg
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
– (m)ass of the egg and washers + Elastic + String = .032kg
– (g) = (9.8 m/sec2)
– (h) Height = 2.75 Meters
m
g
.032 Kg 9.8 m/sec2
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
– (m)ass of the egg and washers + Elastic + String = .032kg
– (g) = (9.8 m/sec2)
– (h) Height = 2.75 Meters
m
g
h
.032 Kg 9.8 m/sec2
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
– (m)ass of the egg and washers + Elastic + String = .032kg
– (g) = (9.8 m/sec2)
– (h) Height = 2.75 Meters
m
g
h
.032 Kg 9.8 m/sec2 2.75 M
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
– (m)ass of the egg and washers + Elastic + String = .032kg
– (g) = (9.8 m/sec2)
– (h) Height = 2.75 Meters
m
g
h
.032 Kg 9.8 m/sec2 2.75 M
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
– (m)ass of the egg and washers + Elastic + String = .032kg
– (g) = (9.8 m/sec2)
– (h) Height = 2.75 Meters
m
g
h
.032 Kg 9.8 m/sec2 2.75 M
PE= .032 Kg 9.8m/sec2 2.75 M
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
– (m)ass of the egg and washers + Elastic + String = .032kg
– (g) = (9.8 m/sec2)
– (h) Height = 2.75 Meters
m
g
h
.032 Kg 9.8 m/sec2 2.75 M
PE= .032 Kg 9.8m/sec2 2.75 M
PE =
• Activity! Bungee Jumping Egg Information
– The Potential Energy of the Egg
• Potential Energy = PE = mgh
– (m)ass of the egg and washers + Elastic + String = .032kg
– (g) = (9.8 m/sec2)
– (h) Height = 2.75 Meters
m
g
h
.032 Kg 9.8 m/sec2 2.75 M
PE= .032 Kg 9.8m/sec2 2.75 M
PE = .86 Joules

Energy
-
Copyright © 2010 Ryan P. Murphy

The ability to do work.
Copyright © 2010 Ryan P. Murphy

To cause something to move/change
directions.
Copyright © 2010 Ryan P. Murphy
• Watch how this person changes directions
and the energy involved.
– What lesson can you learn from seeing the
next slide.
Message:
Look before you cross the street!

Energy cannot be created or destroyed,
but transferred from one form to another.
Copyright © 2010 Ryan P. Murphy
Big Bang
Big Bang
Big Bang
Particles join
together
Big Bang
Particles join Gravity attracts
together
particles, forms
stars, planets
Big Bang
Particles join Gravity attracts Sun releases
together
particles, forms particles, photons
stars, planets
Big Bang
Particles join Gravity attracts Sun releases
together
particles, forms particles, photons
stars, planets
Big Bang
Particles join Gravity attracts Sun releases
together
particles, forms particles, photons
stars, planets
Plants harness
Photons to
make sugars
Big Bang
Particles join Gravity attracts Sun releases
together
particles, forms particles, photons
stars, planets
Plants harness
Photons to
make sugars
Chemical Energy /
Gunpowder (Potential)
Big Bang
Particles join Gravity attracts Sun releases
together
particles, forms particles, photons
stars, planets
Plants harness
Photons to
make sugars
Kinetic Energy
(Bullet)
Chemical Energy /
Gunpowder (Potential)
Big Bang
Particles join Gravity attracts Sun releases
together
particles, forms particles, photons
stars, planets
Heat
Plants harness
Photons to
make sugars
Kinetic Energy
(Bullet)
Chemical Energy /
Gunpowder (Potential)
Big Bang
Particles join Gravity attracts Sun releases
together
particles, forms particles, photons
stars, planets
Sound
Heat
Plants harness
Photons to
make sugars
Kinetic Energy
(Bullet)
Chemical Energy /
Gunpowder (Potential)
Big Bang
Particles join Gravity attracts Sun releases
together
particles, forms particles, photons
stars, planets
Sound
Heat
Plants harness
Photons to
make sugars
Light
Kinetic Energy
(Bullet)
Chemical Energy /
Gunpowder (Potential)
Big Bang
Particles join Gravity attracts Sun releases
together
particles, forms particles, photons
stars, planets
Sound
Heat
Plants harness
Photons to
make sugars
Light
Kinetic Energy
(Bullet)
Chemical Energy /
Gunpowder (Potential)
Big Bang
Particles join Gravity attracts Sun releases
together
particles, forms particles, photons
stars, planets
Sound
Heat
Plants harness
Photons to
make sugars
Light
Kinetic Energy
(Bullet)
Chemical Energy /
Gunpowder (Potential)
• Where is energy being degraded in this
animation?

This belongs to Ryan P. Murphy
Copyright 2010 found on
www.sciencepowerpoint.com
Copyright © 2010 Ryan P. Murphy
• Energy is being degraded through friction.
The wheels are being heated up.
Copyright © 2010 Ryan P. Murphy