1. Energy

2. Energy Vocabulary Energy Vocabulary Chart
ANSWERS Energy Vocabulary Chart

3. What is ENERGY? Energy is the ability to do work.
Everything that happens in the world uses
energy!
Most of the time we can’t see energy, but it is
everywhere around us!

4. Energy… is NEVER created or destroyed!
can only be STORED or TRANFERRED.

5. Batteries store energy!
This car uses a lot of energy
Batteries store energy!
We get our energy from FOOD!
Even this sleeping puppy is using stored energy.

6. Remember:
ALL matter is made up
of particles.
The particles NEVER
stop moving.

7. How is all energy divided?
Potential Energy
Kinetic
Energy

8. Potential Energy is… The energy stored in an object.
"Potential" simply means the energy has the ability to do something useful later on.

9. Examples of Potential Energy:
Hoover Dam Potential Energy Discovery Ed..
Water at the top of a waterfall..
Yo–Yo held in your hand..
A drawn Bow and Arrow…

10. The higher an object, the more potential energy.
The more mass an object has, the more potential energy it has.

11. Which object has more potential energy?

12. ANSWER A This brick has more mass than the feather;
therefore more potential energy!

13. Changing an objects’ height can change its potential energy.
If I want to drop an apple from the top of one of these three things, where will be the most potential energy? A C B

14. The higher the object, the more potential energy!
ANSWER A
The higher the object, the more potential energy!

15. Potential Energy Converted to Kinetic Energy…
When stored energy begins to move, the object now transfers from potential energy into kinetic energy.

16. Kinetic Energy Is… The energy of a moving object.
"Kinetic" means movement!
When stored energy is being used up, it is making things move or happen.

17. Examples of Kinetic Energy:

18. The faster the object moves, the more kinetic energy is produced.
The greater the mass and speed of an object, the more kinetic energy there will be.

19. When these objects move at the same speed, which will have more kinetic energy?

20. ANSWER
The semi- truck has more mass;
therefore, more kinetic energy!

21. An object has the MOST kinetic energy when it’s movement is the GREATEST.
When an object has the LEAST potential energy, it has the MOST kinetic energy.

23. Energy transfer in a pendulum

24. A water bottle is knocked off a desk
A water bottle is knocked off a desk. When does the bottle have the MOST kinetic energy?
A. At the top of the fall. B. In the middle of the fall. C. At the bottom of the fall.

25. C. At the bottom of the fall.
It has the most kinetic energy when its movement and speed are greatest, which is at the bottom of the fall right before it hits the ground.
When an object has the LEAST potential energy is when it has the MOST kinetic energy.
Study Jams

26. Roller Coasters
When does the train on this roller coaster have the MOST potential energy?
AT THE VERY TOP!
The HIGHER the train is lifted by the motor, the MORE potential energy is produced.
At the top of the hill the train has a huge amount of potential energy, but it has very little kinetic energy.

27. As the train accelerates down the hill the potential energy is converted into kinetic energy.
Potential/Kinetic Energy Roller Coasters
There is very little
potential energy at the bottom of the hill, but there is a great amount of kinetic energy.

28. When does the train on this roller coaster have the MOST kinetic energy?
(When is it moving the fastest?)
(When does it have the LEAST potential energy???)
At the bottom of the tallest hill!

29. Animated Roller Coaster

30. Activity
Lets Get Moving.docx

31. Write About It!
Create a story about the transfer of energy. Your story should be two paragraphs of at least six sentences each.
Your story must include the following words: Energy, Energy Transfer, Kinetic Energy, Potential Energy, Law of Conservation of Energy.
Please underline or highlight the vocabulary words.

32. Potential and kinetic energy
Sports___Potential_and_Kinetic_Energy.mp4

33. Lab
How High Does a Ball Bounce Lab.docx

34. Review
All energy is divided into two types: potential and kinetic.
Potential Energy: The energy stored in an object.
Kinetic Energy: The energy of a moving object.
Energy is never created or destroyed. It is always stored or transferred.

35. Mechanical, Electromagnetic, Electrical,
TYPES OF ENERGY
Mechanical, Electromagnetic, Electrical,
Chemical and Thermal

36. Energy Energy is the ability to do work.
Energy is anything that can make matter move or change.
Some forms of energy include:
Mechanical (kinetic and potential)
Thermal (heat)
Chemical
Electrical
Electromagnetic
Sound
Light
Nuclear

37. 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!

38. Examples of Mechanical Energy

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

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

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. 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.

44. 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

45. Electrical energy is transported to your house through power lines.
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

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

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

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

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

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

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

52. 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.

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

54. Review
Energy Conversions
ANSWERS Energy Conversions.pdf

55. Review
Energy Transformations.pdf
ANSWERS Energy Transformations.pdf

56. It’s Electric!

57. A Basic Circuit All electric circuits have three main parts
A source of energy
A closed path
A device which uses the energy
If ANY part of the circuit is open the device will not work!

58. There are 2 types of Current
DC = Direct Current - current flows in one direction
Example: Battery
AC = Alternating Current- current reverses direction many times per second. This suggests that AC devices turn OFF and
ON. Example: Wall outlet (progress energy)

59. Ways to Wire Circuits
There are 2 basic ways to wire a circuit. Keep in mind that a resistor could be ANYTHING ( bulb, toaster, ceramic material…etc)
Series – One after another
Parallel – between a set of junctions and parallel to each other

60. Review
Go with the Flow.pdf

61. Magnets

62. Brief History of magnets
Magnets have been known for centuries.
The Chinese and Greeks knew about the “magical” properties of magnets.
They used the mineral “magnetite” to help in navigation, because it always pointed in the same direction.

63. William gilbert
An English Physician, William Gilbert, first proposed in 1600 that the Earth itself is a magnet.
He predicted that the Earth had magnetic poles.

64. What is magnetism?
Magnetism is the force of attraction or repulsion of a magnetic material due to the arrangement of it’s atoms, particularly its electrons.
innerself.com

65. Magnetic poles
The ends of a magnet are where the magnetic effect is the strongest.
These are called “poles”.
Each magnet has two poles. One North and One South.

66. Like opposites.
Like REPELS Like….
Opposites Attract!!!

67. The earth is a magnet
It exerts magnetic forces and is surrounded by a magnetic field that is strongest near the North and the South magnetic poles.

68. The earth flips?
Sometimes, the Earth’s magnetic poles flip. (We can see evidence of this in rocks along the mid- ocean ridge.)
This happens every half-million years or so.

69. How does a compass work?
We use the Earth’s magnetic field to find direction.
The needle of the compass always points toward the magnetic south pole.
YES! That is correct. We call this direction “North”. Remember!! Opposites Attract!

70. How big is the earths magnetic field?
Earth’s magnetic field extends far into space. We call this the “magnetosphere.”
When magnetic particles (mainly from the sun), called “solar wind”, strike the magnetosphere, we can see a phenomenon called the…
Aurora Borealis in the Northern Hemisphere.
Aurora Australis in the Southern Hemisphere.

73. Electric Currents & Magnetism
Ch 36 Magnetism Notes
Electric Currents & Magnetism
Since moving charges create magnetic fields, an electric current creates a magnetic field.
A coil of wire can concentrate the magnetic field and create an electromagnet.

74. Ch 36 Magnetism Notes
Motors
An electric motor uses a magnet to exert a force on a current-carrying coil of wire.

75. Magnetic Force What is Magnetism? Practice sheet
Electromagnet Activity