Unit 6 Review Energy Conservation

Which Vocabulary word means… Energy in the form of Electricity

Electrical Energy Energy in the form of Electricity

Which Vocabulary word means… The transfer of heat from one place to another, when matter is in direct contact and is in motion due to density changes in liquid or gas.

Convection The transfer of heat from one place to another, when matter is in direct contact and is in motion due to density changes in liquid or gas.

Which Vocabulary word means… The change of energy from one form to another.

Energy Transformation The change of energy from one form to another.

Which Vocabulary word means… Energy of motion

Kinetic Energy Energy of motion

Which Vocabulary word means… A measure for the sensation of “how hot” or “how cold”

Temperature A measure for the sensation of “how hot” or “how cold”

Which Vocabulary word means… Energy that is stored in a system.

Potential Energy Energy that is stored in a system.

Which Vocabulary word means… A principle in physics which states that energy cannot be created nor destroyed; it changes from one form to another.

Law of Conservation of Energy A principle in physics which states that energy cannot be created nor destroyed; it changes from one form to another.

Which Vocabulary word means… The energy of heat, which transfers from hotter objects to colder objects.

Thermal Energy The energy of heat, which transfers from hotter objects to colder objects.

Which Vocabulary word means… The transfer of heat that occurs when two objects of different temperatures touch: matter must be in direct contact.

Conduction The transfer of heat that occurs when two objects of different temperatures touch: matter must be in direct contact.

Which Vocabulary word means… The transfer of heat that occurs through empty space, matter does not need to be in direct contact or be present.

Radiation The transfer of heat that occurs through empty space, matter does not need to be in direct contact or be present.

Which Vocabulary word means… Energy that is released during a chemical reaction or change.

Chemical Energy Energy that is released during a chemical reaction or change.

Which Vocabulary word means… Energy in the form of electromagnetic waves.

Light Energy Energy in the form of electromagnetic waves.

Using a candle to melt sulfur in a test tube is an example of what transformation? ___________ energy to ___________ energy

Using a candle to melt sulfur in a test tube is an example of what transformation? Chemical energy to Thermal energy

What energy transformation takes place in both an electric pencil sharpener AND an electric fan? ___________ energy to ___________ energy

What energy transformation takes place in both an electric pencil sharpener AND an electric fan? Electrical energy to Mechanical energy

Radioactive atoms are split in a nuclear reactor to heat water to steam. This is an example of what energy transformation? ___________ energy to ___________ energy

Radioactive atoms are split in a nuclear reactor to heat water to steam. This is an example of what energy transformation? Nuclear energy to Thermal energy

Two friends decide to go to the park and watch a movie on a computer Two friends decide to go to the park and watch a movie on a computer. The computer runs on battery power. What energy conversion is occurring from the battery to the light being given off by the computer? _________ energy to _________ energy to _________ energy

Two friends decide to go to the park and watch a movie on a computer Two friends decide to go to the park and watch a movie on a computer. The computer runs on battery power. What energy conversion is occurring from the battery to the light being given off by the computer? Chemical energy to Electrical energy to Light energy

Complete this analogy - flashlight battery : light energy :: campfire: ________ energy

Complete this analogy - flashlight battery : light energy :: campfire: Thermal energy

True or False: Final means end

True or False: Final means end

In every experiment there should always be one sample that is left alone (it is not used to test anything) so that the results of the other samples can be compared to it; this sample is called the … ___________________

In every experiment there should always be one sample that is left alone (it is not used to test anything) so that the results of the other samples can be compared to it; this sample is called the … Control

Two chocolate chips are placed on a piece of foil, a lit candle is placed directly under (touching) the foil in the middle between the two chocolate chips. This experiment is an example of which type of energy transfer? ____________________

Two chocolate chips are placed on a piece of foil, a lit candle is placed directly under (touching) the foil in the middle between the two chocolate chips. This experiment is an example of which type of energy transfer? Conduction

Two chocolate chips are placed on a piece of foil, a lit candle is placed directly under (touching) the foil in the middle between the two chocolate chips. Which chocolate chip will melt first? ____________________

Two chocolate chips are placed on a piece of foil, a lit candle is placed directly under (touching) the foil in the middle between the two chocolate chips. Which chocolate chip will melt first? Both will melt close to the same time.

Thermal energy moves in a predictable pattern from warmer to cooler until all the substances attain the same temperature. This means thermal energy (heat) moves ____________________ (away from/ towards) fire.

Thermal energy moves in a predictable pattern from warmer to cooler until all the substances attain the same temperature. This means thermal energy (heat) moves away from fire.

As long as they have both the Tea and the Ice cubes will have about the same temperature accept it as a correct answer Judy put some ice cubs (20˚C) in her glass of fresh hot tea (100˚C). What is the most likely temperature of the tea and the ice cubes after 10 minutes? Tea: ____ Ice cubes: ____

As long as they have both the Tea and the Ice cubes will have about the same temperature accept it as a correct answer Judy put some ice cubes (20˚C) in her glass of fresh hot tea (100˚C). What is the most likely temperature of the tea and the ice cubes after 10 minutes? Tea: 40 °C Ice cubes: 40 °C

The heat given off by fire is an example of which type of energy transfer? _________________

Accept any of the 3 thermal energy transfer methods, as long as the students in the group can explain why. I.E. if something is in the fire (directly touching it) like roasting marshmallows it is conduction; if the heat is being transferred through the air it is convection; if the heat is being transferred even when air is not present it is radiation. The heat given off by fire is an example of which type of energy transfer? Conduction or Radiation

Ramona is eating a bowl of hot chicken soup on a cold snowy day Ramona is eating a bowl of hot chicken soup on a cold snowy day. The heated air over her bowl of chicken soup expands and rises and is replaced by cooler, denser, air. This method of energy transfer is __________________

Ramona is eating a bowl of hot chicken soup on a cold snowy day Ramona is eating a bowl of hot chicken soup on a cold snowy day. The heated air over her bowl of chicken soup expands and rises and is replaced by cooler, denser, air. This method of energy transfer is Convection

A piece of ice cream falls to the ground on a hot summer day A piece of ice cream falls to the ground on a hot summer day. How will the heat energy move? _____________ (heat / coldness) will move from the __________ (ground / ice cream) to the _____ (ground / ice cream).

A piece of ice cream falls to the ground on a hot summer day A piece of ice cream falls to the ground on a hot summer day. How will the heat energy move? Heat will move from the ground to the ice cream.

What is the temperature of the Grey sample? Additional Question What is the temperature of the Grey sample?

What is the temperature of the Grey sample? 32 °C Additional Question What is the temperature of the Grey sample? 32 °C

What should be the label of the x-axis? Additional Question What should be the label of the x-axis?

What should be the label of the x-axis? Color Additional Question What should be the label of the x-axis? Color

What should the title of the graph be? Additional Question What should the title of the graph be?

Additional Question What should the title of the graph be? How color affects temperature (heat).