2. Chapter Menu Lesson 1: Forms of Energy Lesson 2: Energy Transfer
Lesson 3: Temperature, Thermal Energy, and Heat
Lesson 4: Conduction, Convection, and Radiation
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3. 3.1 Forms of Energy energy kinetic energy potential energy
elastic potential energy
thermal energy

4. Energy Is the ability to cause change
3.1 Forms of Energy
Energy
Is the ability to cause change
The energy carried by the moving baseball caused this window change

5. Energy (cont.) Is measured in units of joules (J)
3.1 Forms of Energy
Energy (cont.)
Is measured in units of joules (J)
There are many different forms of energy
Where does energy come from?

6. 3.1 Forms of Energy
Two Types of Energy
Kinetic energy– energy an object has because it is moving
Potential energy– stored energy

7. Kinetic Energy The amount of kinetic energy an object has depends on:
3.1 Forms of Energy
Kinetic Energy
The amount of kinetic energy an object has depends on:
An object’s mass
An object’s speed
Kinetic energy

8. 3.1 Forms of Energy
Kinetic Energy (cont.)
Kinetic energy increases as the mass of the object increases.
The faster an object moves, the more kinetic energy it has.

9. Kinetic Energy (cont.)

10. 3.1 Forms of Energy
Compare the kinetic energy of the two cars if they have the same speed.

11. Potential Energy Three types of potential energy are:
3.1 Forms of Energy
Potential Energy
Three types of potential energy are:
Gravitational potential energy
Elastic potential energy
Chemical potential energy
Potential energy

12. Gravitational Potential Energy
3.1 Forms of Energy
Gravitational Potential Energy
Due to downward pull of Earth’s gravity
The amount of gravitational potential energy depends on:
An object’s mass
An object’s height above the ground

13. Elastic Potential Energy
3.1 Forms of Energy
Elastic Potential Energy
Is energy stored when an object is squeezed or stretched

14. Chemical Potential Energy
3.1 Forms of Energy
Chemical Potential Energy
Energy stored in bonds between the atoms that make up matter

15. Light Energy Is the energy carried by light waves
3.1 Forms of Energy
Light Energy
Is the energy carried by light waves
Spreads out in all directions

16. 3.1 Forms of Energy
Thermal Energy
Energy that moves from one place to another due to differences in temperature
Moves from warmer objects to cooler objects

17. Which of the following has kinetic energy? A a stretched elastic band
3.1 Forms of Energy A B C D
Which of the following has kinetic energy?
A a stretched elastic band
B a rolling ball
C a cup of hot cocoa
D a quart of oil
Lesson 1 Review

18. What unit is used to measure energy? A gram (g) B meter (m)
3.1 Forms of Energy A B C D
What unit is used to measure energy?
A gram (g)
B meter (m)
C joule (J)
D pound (lb)
Lesson 1 Review

19. How is chemical potential energy stored? A in the bonds between atoms
3.1 Forms of Energy A B C D
How is chemical potential energy stored?
A in the bonds between atoms
B in high-speed movement
C through compression
D in light waves
Lesson 1 Review

20. End of Lesson 1

21. 3.2 Energy Transfer
work
wave
fuel
friction

22. Energy Transfer A moving object transfers energy.
Kinetic energy of the ball is transferred to the pins when the ball hits the pins.

23. Energy Transfer (cont.)

24. 3.2 Energy Transfer
Work
The transfer of energy that occurs when a push or pull moves an object

25. 3.2 Energy Transfer
Wave
A disturbance in a material that transfers energy without transferring matter
Three types of waves:
Water waves
Sound waves
Electromagnetic waves
Waves

26. Energy Comes in different forms
3.2 Energy Transfer
Energy
Comes in different forms
Can be transferred from one place to another
Can be converted from one form to another

27. Types of Energy Conversions
3.2 Energy Transfer
Types of Energy Conversions
Potential energy to kinetic energy
Converting chemical potential energy
Thermal energy to kinetic energy
Kinetic energy to thermal energy
How is energy converted from one form to another?

28. Converting Potential Energy to Kinetic Energy
3.2 Energy Transfer
Converting Potential Energy to Kinetic Energy
When you throw a ball upward, the ball’s kinetic energy changed into potential energy.
All kinetic energy has been converted to potential energy when the ball reaches its highest point.
As the ball falls down, potential energy is converted back into kinetic energy.

29. A converts potential energy into kinetic energy
3.2 Energy Transfer A B C D
When wood burns, it ____.
A converts potential energy into kinetic energy
B converts kinetic energy into thermal energy
C converts thermal energy into kinetic energy
D converts chemical potential energy into thermal and radiant energy
Lesson 2 Review

30. Which of the following is the BEST example of work? A holding a book
3.2 Energy Transfer A B C D
Which of the following is the BEST example of work?
A holding a book
B reading a book
C lifting a book in your backpack
D standing on a book
Lesson 2 Review

31. Which of the following statements about waves is NOT true?
3.2 Energy Transfer A B C D
Which of the following statements about waves is NOT true?
A All waves transport at least some matter.
B Electromagnetic waves can travel through empty space.
C Waves are disturbances that transfer energy.
D Sound waves transfer kinetic energy.
Lesson 2 Review

32. End of Lesson 2

33. 3.3 Temperature, Thermal Energy, and Heat
thermal expansion
heat

34. 3.3 Temperature, Thermal Energy, and Heat
Measure of the average kinetic energy of the particles in a material
Temperature of an object depends on how fast the particles in an object move

35. Temperature and Particles in Motion
3.3 Temperature, Thermal Energy, and Heat
Temperature and Particles in Motion
Heating a balloon causes particles to move faster and take up more space.

36. 3.3 Temperature, Thermal Energy, and Heat
Thermal Expansion
An increase in the volume of a substance when the temperature increases

37. Measuring Temperature
3.3 Temperature, Thermal Energy, and Heat
Measuring Temperature
Practical method to measure temperature is to use a thermometer
Three common temperature scales:
Fahrenheit
Celsius
Kelvin

38. Measuring Temperature (cont.)
3.3 Temperature, Thermal Energy, and Heat
Identify the temperature at which water boils on the Fahrenheit, Celsius, and Kelvin scales.
Measuring Temperature (cont.)

39. Heat Energy transfers from a hot object to a cooler object
3.3 Temperature, Thermal Energy, and Heat
Heat
Energy transfers from a hot object to a cooler object
Thermal energy transfers until both objects reach the same temperature

40. The volume of a substance ____ when its temperature increases.
3.3 Temperature, Thermal Energy, and Heat A B C D
The volume of a substance ____ when its temperature increases.
A decreases
B increases
C remains the same
D is cut in half
Lesson 3 Review

41. What is the freezing point of water on the Kelvin scale? A 0 K B 100 K
3.3 Temperature, Thermal Energy, and Heat A B C D
What is the freezing point of water on the Kelvin scale?
A 0 K
B 100 K
C 273 K
D 373 K
Lesson 3 Review

42. A a measure of the volume of an object or material
3.3 Temperature, Thermal Energy, and Heat A B C D
What is temperature?
A a measure of the volume of an object or material
B a measure of the average amount of kinetic energy of the particles in a material
C the average amount of potential energy of the particles in a material
D the transfer of radiant energy from an object
Lesson 3 Review

43. End of Lesson 3

44. 3.4 Conduction, Convection, and Radiation
conductor
fluid
convection
density
convection current
radiation

45. Three Methods of Transferring Thermal Energy
3.4 Conduction, Convection, and Radiation
Three Methods of Transferring Thermal Energy
Conduction
Convection
Radiation

46. Three Methods of Transferring Thermal Energy (cont.)
3.4 Conduction, Convection, and Radiation
Three Methods of Transferring Thermal Energy (cont.)

47. Three Methods of Transferring Thermal Energy (cont.)
3.4 Conduction, Convection, and Radiation
Three Methods of Transferring Thermal Energy (cont.)

48. 3.4 Conduction, Convection, and Radiation
Particles bounce against one another, transferring energy throughout the material
Thermal energy is conducted through a solid object as energy is passed from one particle to the next.
Conduction occurs in all materials.

49. 3.4 Conduction, Convection, and Radiation
Conduction (cont.)
Conductors are materials in which thermal energy moves quickly.
Insulators are materials in which thermal energy moves slowly.

50. 3.4 Conduction, Convection, and Radiation
Conduction (cont.)

51. Convection Occurs because of differences in density of a material
3.4 Conduction, Convection, and Radiation
Convection
Occurs because of differences in density of a material
Only takes place in fluids such as liquids and gases

52. 3.4 Conduction, Convection, and Radiation
Convection Currents
When a fluid is heated from below, differences in fluid density create convection currents.

53. Radiation Transfer of thermal energy by electromagnetic waves
3.4 Conduction, Convection, and Radiation
Radiation
Transfer of thermal energy by electromagnetic waves
Thermal energy can be transferred by radiation within matter and through space.
Is the process that transfers energy from the Sun to Earth

54. 3.4 Conduction, Convection, and Radiation
Heat Transfer

55. When the temperature of a material increases, its density ____.
3.4 Conduction, Convection, and Radiation A B C D
When the temperature of a material increases, its density ____.
A decreases
B increases
C doubles
D remains the same
Lesson 4 Review

56. Which type of thermal transfer can occur through matter or space?
3.4 Conduction, Convection, and Radiation A B C D
Which type of thermal transfer can occur through matter or space?
A fluid transfer
B convection
C conduction
D radiation
Lesson 4 Review

57. Which of the following is a good conductor? A wood B steel
3.4 Conduction, Convection, and Radiation A B C D
Which of the following is a good conductor?
A wood
B steel
C fiberglass
D air
Lesson 4 Review

58. End of Lesson 4

59. Chapter Resources Menu
Chapter Assessment
California Standards Practice
Concepts in Motion
Image Bank
Science Online
Interactive Table
Virtual Lab
BrainPOP
Click on a hyperlink to view the corresponding feature.

60. A a rock falling from a cliff B a burning candle
Which of the following is an example of gravitational potential energy changing into kinetic energy?
A a rock falling from a cliff
B a burning candle
C wind pushing a sailboat
D lifting a box
Chapter Assessment 1

61. How would an increase in sea temperature affect sea level? B C D
How would an increase in sea temperature affect sea level?
A Sea levels would fall.
B Sea levels would remain the same.
C Sea levels would rise.
D Sea levels would rise and then fall.
Chapter Assessment 2

62. A The material must be a solid. C D
Which of the following conditions must be present in a material in order for a convection current to form?
A The material must be a solid.
B The temperature of the material must be constant throughout.
C The density of the material must be the same throughout.
D none of the above
Chapter Assessment 3

63. A B C D
Which of the following is responsible for your hands feeling warm when holding a warm cup?
A convection
B conduction
C radiation
D insulation
Chapter Assessment 4

64. “Radiant energy” refers to the energy carried by what type of wave?
A water wave
B shock wave
C electromagnetic wave
D sound wave
Chapter Assessment 5

65. SCI 3.b A B C D
When a log is burned in a fireplace, most of the energy that is released becomes ____ energy.
A light
B thermal
C chemical
D kinetic
CA Standards Practice 1

66. Energy can be carried from one place to another by ____. A heating
SCI 3.a A B C D
Energy can be carried from one place to another by ____.
A heating
B waves
C moving objects
D all of the above
CA Standards Practice 2

67. In what manner does thermal energy move through a brick? A conduction
SCI 3.c A B C D
In what manner does thermal energy move through a brick?
A conduction
B radiation
C gravitationally
D convection
CA Standards Practice 3

68. Which of the following is a characteristic of radiation?
SCI 3.d A B C D
Which of the following is a characteristic of radiation?
A Radiation can only transfer energy through matter.
B Radiation can transfer energy between objects.
C Radiation creates a glowing effect.
D Radiation cannot transfer thermal energy.
CA Standards Practice 4

69. A differences in density in a fluid
SCI 3.c
What is primarily responsible for convection currents forming in a material?
A differences in density in a fluid
B the volume of an object shrinks when heated
C an object’s solid nature
D similar temperatures in a fluid
CA Standards Practice 5

70. Concepts in Motion 1

71. Concepts in Motion 2

72. Concepts in Motion 3

73. Image Bank

74. Interactive Table

75. End of Resources