Mr. Z's Daily Internet Homework                                


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Mr. Z's Unit #5:  Energy Types and Changes

Mr. Z's Science Notes

 

Part 1:  Sources and Transformation of Energy     Z-Notes     Worksheets

 

Film Worksheet: : KE vs PE        Film Worksheet: : Transfer   Film Worksheet: Conservation

 


What are the two basic kinds of mechanical energy? (Lesson Review)

  1.  What are two types of mechanical energy?

  2.  Define kinetic energy.

  3.  Define potential energy.

  4.  Compare gravitational potential energy to elastic potential energy.

  5.  Can something have both kinetic and potential energy at the same time?

For Online Quiz on Mechanical Energy



What are some other Energy types? (Lesson Review)

  1.  What are some common types of energy?

  2.  What is mechanical energy?

  3.  Where does your body get energy from?

  4.  Where do plants get their energy from?

  5.  What type of energy is produced when you rub hands together?

  6.  What is another word for heat energy?

For Online Quiz on Energy Types


 

How does energy change form? (Lesson Review)

  1.  Can energy change from one form to another?

  2.  Where does a pendulum have the great amount of potential energy?

  3.  Where does a pendulum have the least potential energy?

  4.  How does "changes in energy" occurring in the body relate to body temperature?

  5.  Plants turn the  _____ energy of the sun, into what type of energy?

  6.  State the law of conservation of energy

  7.  Describe the changes in potential vs kinetic energy when shooting a basketball.  

For Online Quiz on Energy Conversions


 

What are fossil fuels?   (Lesson Review)

  1.  Where do fossil fuels come from?

  2.  What are some petroleum products?

  3.  Where does the original emery of fossil fuels come from.

  4.  What energy conversions take place in the formation of fossil fuels.

  For Online Quiz on Fossil Fuels

 

 

 

TEST REVIEW     (Click Here for Test Review)  

 

   For  an Online Test-Quiz:  Energy Part II


Part 2:  Phase Changes     Z-Notes     Worksheets


What are the basic properties of matter? (Lesson Review)

  1.  Define volume

  2.  Define matter.

  3.  Define density.

  4.  What is the difference between mass and weight

  5.  What are the four basic properties of matter?

 

What are the phases of matter?    (Lesson Review)

  1.  Describe the movement of the molecules in a solid

  2.  Describe the movement of the molecules in a liquid.

  3.  Describe the movement of the molecules in a gas.

  4.  What determines the volume of a gas?

  5.  What determines the shape of a liquid?

  6.  Does the volume of liquid change when its container changes?

How does matter change phase?   (Lesson Review)

  1. What phase change describes a change from of solid to a liquid?

  2.  What phase change is the opposite of the question above?

  3.  What phase change describe a change from a liquid to a gas?

  4.  What phase change is the opposite of the question above?

  5.  How would you describe the vibration (of the particles) of the 3 phases of matter?

  6.  How would you describe the kinetic energy of the 3 phases of matter?

What is the Phase Change Diagram? (Lesson Review)

  1.  Draw a phase change diagram

  2.  Label the Axis

  3.  Label the three states of matter.

  4.  Label the melting point, freezing point, condensation & boiling points

     

How does distillation work? (Lesson Review)

  1.  What is distillation?

  2.  What two phase changes occur in distillation?

  3.  Do all substances condense at the same temperature?

  4.  Do all substances boil at the same temperature?

     


Online Quiz States of Matter #1 !      Online Quiz States of Matter #2 !     Flash Card Review

 

 

TEST REVIEW PART: (Click Here)

 

Part 3:  Heat and its effects:      Worksheets


What is heat?      Lesson Review

  1.  What happens to particle of matter when you add heat energy?

  2. Which do you think will dissolve more salt:  Hot Water or Cold Water?  Why?


What is Freezing/Boiling Point?  Lesson Review

  1.  At what temperature does water begin to freeze in degrees F?  In degrees C?

  2.  At what temperature does water begin to boil in degrees F?  In degrees C?

  3.  Do all liquids freeze at the same temperature?

  4.  Do all solids melt at the same temperature?

  5.  What is the differences between melting and freezing?

  6.  What is the difference between boiling and evaporation?

  7.  At what part of a liquid does evaporation usually occur?

  8.  What happens to a liquid when it reaches its boiling point?


What is Radiation?  Lesson Review

  1.  From where does the earth receive heat?  How does it get here?

  2.  Define radiation.

  3.  What else radiates heat?

  4.  What else is solar radiation used for?

  5.  What machinery located in your kitchen cooks by radiation?

  6.  Explain how you can toast a marshmallow WITHOUT putting it directly in the flame?  

  7.  How do the bricks beneath a fire in your fireplace get warm?


What is Conduction?   Lesson Review

  1.  What is the process called how heat moves through a solid?

  2.  What is the difference between a good conductor and an insulator?

  3.  How does a metal spoon in a pot of hot pasta get hot?

  4.  Does a wooden spoon react the same way?  Explain.

  5.  How does heat travel by conduction?


What is Convection?   Lesson Review

  1.  How do the bricks beneath a fire in your fireplace get warm?

  2.  How does heat travel through a gas or a liquid?

  3.  Describe a convection current?

  4.  What happens to air when it is heated?  Why does it do that (in terms of density).

  5.  What happens to air as it is cooled? Why does it do that (in terms of density).

  6.  Describe the  three phases of heating as applied to a metal hot water radiator.

  7.  Why does smoke go up a chimney?

 

 

Unit Review:  Energy Types and Changes   Download

TYPES & CHANGES IN ENERGY

 Key Idea 4:   Energy exists in many forms, and when these forms change energy is                              conserved.

 Introduction: An underlying principle of all energy use is the Law of Conservation of Energy. Simply stated, energy cannot be created or destroyed. Energy can be transformed, one form to another. These transformations produce heat energy. Heat is a calculated value which includes the temperature of the material, the mass of the material, and the type of the material. Temperature is a direct measurement of the average kinetic energy of the particles in a sample of material. It should be noted that temperature is not a measurement of heat.

 

PERFORMANCE INDICATOR 4.1: Describe the sources and identify the transformations of energy observed in everyday life.

 Major Understandings:

4.1a The Sun is a major source of energy for Earth. Other sources of energy include nuclear and geothermal energy.

4.1b Fossil fuels contain stored solar energy and are considered nonrenewable resources. They are a major source of energy in the United States. Solar energy, wind, moving water, and biomass are some examples of renewable energy resources.

4.1c Most activities in everyday life involve one form of energy being transformed into another. For example, the chemical energy in gasoline is transformed into mechanical energy in an automobile engine. Energy, in the form of heat, is almost always one of the products of energy transformations.

4.1d Different forms of energy include heat, light, electrical, mechanical, sound, nuclear, and chemical. Energy is transformed in many ways.

4.1e Energy can be considered to be either kinetic energy, which is the energy of motion, or potential energy, which depends on relative position.

 

PERFORMANCE INDICATOR 4.2:  Observe and describe heating and cooling events.

 Major Understandings:

 4.2a Heat moves in predictable ways, flowing from warmer objects to cooler ones, until both reach the same temperature.

4.2b Heat can be transferred through matter by the collisions of atoms and/or molecules (conduction) or through space (radiation). In a liquid or gas, currents will facilitate the transfer of heat (convection).

4.2c During a phase change, heat energy is absorbed or released. Energy is absorbed when a solid changes to a liquid and when a liquid changes to a gas. Energy is released when a gas changes to a liquid and when a liquid changes to a solid.

4.2d Most substances expand when heated and contract when cooled. Water is an exception, expanding when changing to ice.

4.2e Temperature affects the solubility of some substances in water.

PERFORMANCE INDICATOR 4.3:  Observe and describe energy changes as related to                                                                     chemical reactions.

Major Understandings:

 4.3a In chemical reactions, energy is transferred into or out of a system. Light, electricity, or mechanical motion may be involved in such transfers in addition to heat.

 

 


 

VOCABULARY:   TYPES & CHANGES IN ENERGY

4.0

 

 

potential energy

4.0

 l b

26

renewable and nonrenewable sources

4.0

l e

26

kinetic

4.0

 l e

26

kinetic, potential

4.0

 

 

average kinetic energy

4.1

b

 

biomass

4.1

c

 

chemical energy

4.1

b

 

energy resources

4.1

a

26

energy sources

4.1

 c

26

energy transformation

4.1

 d

26

forms of energy

4.1

 b

 

fossil fuels

4.1

 

 

geothermal energy

4.1

b

26

nonrenewable resources

4.1

 a

 

nuclear energy

4.1

e

 

relative position

4.1

d

 

light energy

4.1

c

 

mechanical energy

4.1

b

 

solar energy

4.1

 d

 

sound energy

4.1

 c

 

transform

4.1

 d

26

various forms -of energy

4.2

d

 

expand

4.2

c

26

heat energy

4.2

a

26

heat flow

4.2

b

26

heat transfer

4.2

c

 

phase change

4.2

b

 

radiation

4.2

c

 

release

4.2

d

26

water the exception

4.2

b

 

collisions

4.2

b

 

conduction

4.2

b

 

convection

4.2

b

 

current

4.2

e

26

temperature and solubility