1. ENERGY
Physical Science Unit

3. WHAT IS ENERGY?
Interactive Notebook pg. 112

4. What is Energy?
background

5. What is Energy?
background

6. What is Energy? What does this mean? Energy – The ability to do work
--Means that energy is needed to apply a force to an object
to make it move.
-- Energy is also needed to make a change in the state of matter
(solid, liquid, or gas).
background
This power or ability to make things happen is what we can call energy. It makes things happen. It makes change possible.

7. What is Physical Science?
The combination of energy and matter make up the universe:
Matter is substance (stuff), and energy is the mover and changer of substance (stuff).

9. Types of Energy?
Types of Energy Clip (1 minute 50 seconds)

10. Electromagnetic Waves
Energy can be transferred from one system to another in different ways:
Types of Energy
Mechanical Energy
Thermal Energy
Electromagnetic Waves
Electrical Energy
Nuclear Energy
Chemical Energy
6.P.3.1
Energy can be transferred from one system to another (or from a system to its environment) in different ways
thermally, when a warmer object is in contact with a cooler one
mechanically, when two objects push or pull on each other over a distance
electrically, when an electrical source such as a battery or generator is connected in a complete circuit to an electrical device
by electromagnetic waves

11. The Law of Conservation of Energy
Energy cannot be created or destroyed; it may be transformed from one form into another, but the total amount of energy never changes.

12. How is all energy divided?
Potential
Energy
Kinetic
Energy
Gravitation
Potential
Energy
Elastic
Chemical

15. Interactive Notebook Page 111
TITLE: Forms and States of ENERGY

16. What is Kinetic Energy? - All moving things have kinetic energy.
- It is energy possessed by an object due to its motion or movement.
--- These include very large things, like planets,
and very small ones, like atoms.
--- The heavier a thing is, and the faster it moves,
the more kinetic energy it has.

17. What is Potential Energy?
Potential energy is the stored energy an object has because of its position or state.
EXAMPLES:
A bicycle on top of a hill, a book held over your head, and a stretched spring all have potential energy.

18. Potential Kinetic energy of position or energy in storage.
Water behind a dam
Hammer over head
Food on the plate
energy of motion, the form capable of doing work
Flowing water
A falling hammer
Electrons regenerating ATP in a bio’l cell

19. What is Gravitational Potential Energy?
Potential energy due to an object’s position
P.E. = mass x
height x gravity
Don’t look down, Rover!
Good boy!

20. What is Potential Energy?
Energy that is stored and waiting to be used later

21. What is Elastic Potential Energy?
Potential energy due compression or expansion of an elastic object.
Notice the ball compressing
and expanding

22. What is Chemical Potential Energy?
Potential energy stored within the chemical bonds of an object

23. What is Kinetic Energy? Energy an object has due to its motion
K.E. = .5(mass x speed2)

25. Forms OF ENERGY

26. 6 Fundamental Forms of Energy
mechanical energy
Thermal (heat) energy
electromagnetic energy
electrical energy
nuclear energy
chemical energy

27. What is Mechanical Energy?
Energy due to a object’s motion (kinetic) or position (potential).
The bowling ball has mechanical energy.
When the ball strikes the pins, mechanical energy is transferred to the pins!

28. Examples of Mechanical Energy

29. What is Thermal Energy?
Heat energy
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.

30. Thermal Energy
Which bowl of soup has more thermal energy at the same temperature – the large bowl or the small bowl?

31. Thermal Energy
Which bowl of soup has more thermal energy at the same temperature – the large bowl or the small bowl?
The amount of thermal energy in an object is related to its mass.
If two objects at the same temperature are compared, the one with the greater mass has MORE thermal energy.

32. Thermal Energy
Which bowl of soup has more thermal energy at the same temperature – the large bowl or the small bowl?
The amount of thermal energy in an object is related to its mass.
If two objects at the same temperature are compared, the one with the greater mass has MORE thermal energy.
And the object with LESS MASS has? ___________________

33. Thermal Energy Which has more thermal energy?
A lit match or an ice sculpture?

34. What is Electromagnetic Energy?
Radiant or ”Light” energy
Includes energy from gamma rays, xrays, ultraviolet rays, visible light, infrared rays, microwave and radio bands

35. What is Electrical Energy?
Energy caused by the movement of electrons
Easily transported through power lines and converted into other forms of energy

36. What is Electrical Energy?
ATOMIC STRUCTURE
Nucleus of an Atom
(negative charge)
(positive charge)
(no charge)

37. What is Electrical Energy?
ATOMIC STRUCTURE
Nucleus of an Atom
(negative charge)
(positive charge)
(no charge)

38. What is Nuclear Energy?
Nuclear energy is energy that is stored in the nucleus or center core of an atom.
The nuclear energy is what holds the nucleus together.

39. What is Nuclear Energy? 1. Fusion
In order to use this energy, it has to be released from the atom. There are two ways to free the energy inside the atom.
1. Fusion
Fusion is a way of combining the atoms to make a new atom.

40. What is Nuclear Energy? 2. Fission
In order to use this energy, it has to be released from the atom. There are two ways to free the energy inside the atom.
2. Fission
Fission is a way of splitting an atom into two smaller atoms. The two smaller atoms don't need as much energy to hold them together as the larger atom, so the extra energy is released as heat and radiation.

41. What is Chemical Energy?
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.

42. Examples of Chemical Energy

43. ELECTROMAGNETIC ENERGY
QUIZ TIME!
What type of energy cooks food in a microwave oven?
ELECTROMAGNETIC ENERGY
What type of energy is the spinning plate inside of a microwave oven?
MECHANICAL ENERGY

44. QUIZ TIME!
Electrical energy is transported to your house through power lines.
When you plug an electric fan to a power outlet, electrical energy is transform into what type of energy?
MECHANICAL ENERGY

45. QUIZ TIME!
What energy transformation occurs when an electric lamp is turned on?
ELECTRICAL ENERGY 
ELECTROMAGNETIC ENERGY

46. What types of energy are shown below?
Mechanical and Thermal Energy
(Don’t forget friction)

47. What type of energy is shown below?
Chemical Energy

48. What types of energy are shown below?
Electrical, Mechanical and
Electromagnetic Energy

49. What type of energy is shown below?
Chemical Energy (yummy)

50. What type of energy is shown below?
Thermal Energy

51. Draw a flow map showing the flow of energy transformations in a car from starting vehicle to driving. You should have 5 different types of energy.

52. Energy Transfer Sound (mechanical) Electrical Thermal Mechanical
Chemical
Electrical
Light
(Electromagnetic)