What is ENERGY? Energy is the ability to do work or cause
change
Slide 3
TYPES OF ENERGY Mechanical, Electromagnetic, Electrical,
Chemical, Thermal, & Nuclear
Slide 4
What is Mechanical Energy? o Energy due to a objects motion
(kinetic) or position (potential). The bowling ball has mechanical
energy. When the ball strikes the pins, mechanical energy is
transferred to the pins!
Slide 5
Examples of Mechanical Energy
Slide 6
What is Electromagnetic Energy? o Light energy o Includes
energy from gamma rays, xrays, ultraviolet rays, visible light,
infrared rays, microwave and radio bands
Slide 7
What is Electrical Energy? o Energy caused by the movement of
electrons o Easily transported through power lines and converted
into other forms of energy
Slide 8
What is Chemical Energy? o Energy that is available for release
from chemical reactions. The chemical bonds in a matchstick store
energy that is transformed into thermal energy when the match is
struck.
Slide 9
Examples of Chemical Energy
Slide 10
What is Thermal Energy? o Heat energy o The heat energy of an
object determines how active its atoms are. A hot object is one
whose atoms and molecules are excited and show rapid movement. A
cooler object's molecules and atoms will show less movement.
Slide 11
What is Nuclear Energy? o Energy stored in the nuclei of atoms
o Releasing this energy by splitting atoms is called FISSION
oReleasing this energy when less massive nuclei merge to form a
more massive nucleus is FUSION
Slide 12
Examples of Nuclear Energy
Slide 13
QUIZ TIME! Get out your remotes!!
Slide 14
What type of energy cooks food in a microwave oven?
1.Mechanical 2.Electromagnetic 3.Electrical 4.Chemical 5.Thermal
6.Nuclear Response Grid
Slide 15
The plate spinning in the microwave would have what type of
energy? 1.Mechanical 2.Electromagnetic 3.Electrical 4.Chemical
5.Thermal 6.Nuclear Response Grid
Slide 16
Electrical energy is converted to what type of energy on this
stove? 1.Mechanical 2.Electromagnetic 3.Electrical 4.Chemical
5.Thermal 6.Nuclear Response Grid
Slide 17
Plugging a fan into a power outlet transforms electrical energy
into what type of energy? 1.Mechanical 2.Electromagnetic
3.Electrical 4.Chemical 5.Thermal 6.Nuclear Response Grid
Slide 18
Photosynthesis converts electromagnetic energy from the sun
into what type of energy to nourish plants ? 1.Mechanical
2.Electromagnetic 3.Electrical 4.Chemical 5.Thermal 6.Nuclear
Response Grid
Slide 19
Electrical energy is transformed into what type of energy when
a lamp is turned on? 1.Mechanical 2.Electromagnetic 3.Electrical
4.Chemical 5.Thermal 6.Nuclear Response Grid
Slide 20
What are some energy transformations that occur while driving a
car?
Slide 21
Energy Transfer Chemical Electrical Sound (mechanical) Light
(Electromagnetic) Thermal Mechanical
Slide 22
TYPES OF ENERGY Get ready for the Most missed Paleontology Test
Questions Complete the Transforming Energy Worksheet Get your
Storyboards ready to go!!
Slide 23
ENERGY Research your assigned Source of Energy. Use the website
provided or do a google search of advantages &
disadvantages
Slide 24
Understanding Energy Ready your remote
Slide 25
Which of the following is NOT a form of energy? 1.Electrical
2.Mechanical 3.Density 4.Chemical
Slide 26
Radio waves make up which form of energy? 1.Electrical
2.Mechanical 3.Thermal 4.Electromagnetic
Slide 27
The wind blowing would be an example of which form of energy?
1.Electrical 2.Mechanical 3.Thermal 4.Chemical
Slide 28
Understanding Conservation of Energy
Slide 29
Law of Conservation of Energy Energy may not be created nor
destroyed.
Slide 30
Law of Conservation of Energy Energy may not be created nor
destroyed. The total energy in a closed system remains
constant
Slide 31
Law of Conservation of Energy Initial Energy = Final
Energy
Slide 32
Initial Energy = Final Energy (KE + PE) initial = (KE+PE)
final
Slide 33
Initial Energy = Final Energy (KE + PE) initial = (KE+PE) final
2 J + 8 J = 7 J + ?
Slide 34
Initial Energy = Final Energy (KE + PE) initial = (KE+PE) final
2 J + 8 J = 7 J + 3 J
Slide 35
A ball is at a position with only 100 J of potential energy.
After being dropped 50 feet, it still has 40 J of potential energy
left. How much kinetic energy does it have? 1.0 J 2.40 J 3.50 J
4.60 J 5.140 J
Slide 36
A car has 100 J of energy. After rolling 20 feet, it still has
70 J of energy left. How much energy was transformed into thermal
energy in the form of friction. 1.0 J 2.20 J 3.30 J 4.70 J 5.100
J
Slide 37
Einsteins equation E=mc 2 is an exception to the Law of
Conservation of Energy used only when dealing with which form of
energy ? 1.Electricity 2.Mechanical 3.Thermal 4.Chemical
5.Nuclear
Slide 38
Understanding Energy 1.) Return your remote 2.) Pick up The
Nature of Energy WS 3.) Complete both sides of The Nature of Energy
WS 4.) Turn in your Energy Resource Presentation 5.)Complete the
Energy Skate Park Simulation Paper
Slide 39
Understanding Energy Ready your remote
Slide 40
A ball is dropped from the top of a building where it has of
potential energy of 60 J. When it hits the ground, how much kinetic
energy does it have? 1.0 J 2.30 J 3.60 J 4.120 J
Slide 41
A ball is dropped from a height where it has of potential
energy of 200 J. When it still has 50 J of potential energy, how
much kinetic energy does it have? 1.200 J 2.150 J 3.50 J 4.0 J
Slide 42
A cannonball is launched from the ground with a kinetic energy
of 500 J. How much kinetic energy will it have when it hits the
ground? 1.0 J 2.250 J 3.500 J 4.1000 J
Slide 43
According to the law of conservation of energy, which of the
following is true? 1.Energy is neither created nor destroyed
2.Energy can be destroyed by antimatter 3.Energy increases after a
chemical reaction 4.Energy decreases after a chemical reaction
Slide 44
Understanding Energy Return your remote
Slide 45
Understanding Conservation of Energy
Slide 46
A ball is dropped from the top of a building where it has of
potential energy of 300 J. When it hits the ground 90 feet below,
how much kinetic energy does it have? 1.300 J 2.600 J 3.900 J 4.0
J
Slide 47
An arrow is shot straight up in the air with a kinetic energy
of 400 J. When it has 100 J of potential energy, how much kinetic
energy does it have left? 1.400 J 2.300 J 3.200 J 4.100 J
Slide 48
Understanding Our Energy Resources
Slide 49
POLL: Which of the following resources would you consider the
BEST resource for mankind to be using overall? 1.Petroleum
2.Natural Gas 3.Coal 4.Uranium 5.Biomass 6.Hydropower 7.Geothermal
8.Wind 9.Solar
Slide 50
POLL: Which of the following resources would you consider the 2
nd BEST resource for mankind to be using overall? 1.Petroleum
2.Natural Gas 3.Coal 4.Uranium 5.Biomass 6.Hydropower 7.Geothermal
8.Wind 9.Solar
Slide 51
1.) Complete the Sources of Energy Sheet 2.) Please be
respectful of those sharing their energy resource
Slide 52
POLL: Has your opinion changed after research? Now, which
resource would you consider the BEST resource for mankind to be
using overall? 1.Petroleum 2.Natural Gas 3.Coal 4.Uranium 5.Biomass
6.Hydropower 7.Geothermal 8.Wind 9.Solar
Slide 53
POLL: Opinion after analyzing other sources of energy? Now,
which resource would you consider the 2 ND BEST resource for the
U.S. to be using to generate electricity? 1.Petroleum 2.Natural Gas
3.Coal 4.Uranium 5.Biomass 6.Hydropower 7.Geothermal 8.Wind
9.Solar
Slide 54
Hydrogen FUEL CELLS Hydrogen FUEL CELLS
Slide 55
Solar cells convert what type of energy into electrical energy?
1.Electromagnetic 2.Chemical 3.Nuclear 4.Thermal
Slide 56
The energy stored in gasoline is what type of energy?
1.Electromagnetic 2.Chemical 3.Nuclear 4.Thermal
Slide 57
A ball is dropped from the top of a stadium where it has a
potential energy of 200 J. If it loses 10 J to air resistance, how
much kinetic energy will it have when it has a potential energy of
50 J. 1.260 J 2.150 J 3.140 J 4.60 J
Slide 58
Greatest Inventions Energy Video
Slide 59
Heat Energy
Slide 60
Conduction Heat transfer by direct contact of particles is
called conduction. When your hands touches a metal spoon sitting in
a boiling pot of soup, the heat from the bottom of the pot is
transferred to you hand by conduction.
Slide 61
Conduction
Slide 62
Convection Convection is the transfer of heat by the movement
of a heated fluid. Convection deals with density. Density is the
measure of how much mass is there in a volume of a substance.
Slide 63
Convection When a liquid or gas is heated, the particles move
faster and the density decreases. As the fluid becomes cooler, its
density increases. As density increases, the fluid sinks. Heat
Rises!!
Slide 64
Convection The heating and cooling of the fluid, changes in the
fluids density, and the force of gravity combine to set convection
currents in motion. Without heat, convection currents will
eventually come to a stop.
Slide 65
Convection in the Earths Mantle The heat source for these
convection currents in the mantle comes from the heat of the Earths
core.
Slide 66
Radiation Radiation is the transfer of energy through empty
space. Heat transfer by radiation takes place with no direct
contact between a heat source and an object.
Slide 67
Heat from the Sun Energy is constantly on the move! The
movement of energy from warmer object to a cooler object is called
a heat transfer There are three types of heat transfer: radiation,
conduction, and convection.
Slide 68
Radiation, Conduction, and Convection
Slide 69
Heat Energy Learning Checks
Slide 70
A lake is warmed by the sun due to which type of heat flow?
1.Conduction 2.Convection 3.Radiation 4.Insulation
5.Electricity
Slide 71
While swimming in a lake, the water feels warmer due to which
type of heat flow? 1.Conduction 2.Convection 3.Radiation
4.Insulation 5.Electricity
Slide 72
Presentations Use the Sources of Energy Sheet to record and
compare information on the energy resources in use on our
planet.
Slide 73
Learning Review Ready your remote
Slide 74
In a chemical reaction, what would a chemist call the
substances mixed before the reaction? 1.Products 2.Reactants
3.Mixtures 4.Parents
Slide 75
In a chemical reaction, how does the mass of the products
compare to the mass of the reactants? (ACCORDING TO THE LAW OF
CONSERVATION OF MASS) 1.The mass of the reactants is greater. 2.The
mass of the products is greater. 3.The masses are equal. 4.It
depends on the energy gain or loss
Slide 76
According to the law of conservation of energy, which of the
following is true? 1.Energy is neither created nor destroyed
2.Energy can be destroyed by antimatter 3.Energy increases after a
chemical reaction 4.Energy decreases after a chemical reaction
Slide 77
The equation E = m c 2 means what? 1.Energy can neither be
created nor destroyed 2.Matter can be converted into energy
3.Everything is made out of matter 4.Chemical reactions release a
lot of energy
Slide 78
Which of the following is a renewable energy resource? 1.Oil
2.Coal 3.Wind 4.Natural Gas
Slide 79
Learning Review Return your remote
Slide 80
Learning Review Ready your remote
Slide 81
Which of the following is NOT a form of energy? 1.Chemical
2.Electricity 3.Mechanical 4.Nuclear 5.Antimatter
