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Web folio

Web folio. By Keiry Rodriguez. Table of Contents. Formulas Scientific Method Three States of Matter Five Phase Changes Parts of an Atom Periodic Table Solutions Covalent and Ionic Bonds Mixtures Newton’s Three Laws Simple Machines Heat Transfer Waves Electricity. Formulas.

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Web folio

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  1. Web folio By Keiry Rodriguez

  2. Table of Contents • Formulas • Scientific Method • Three States of Matter • Five Phase Changes • Parts of an Atom • Periodic Table • Solutions • Covalent and Ionic Bonds • Mixtures • Newton’s Three Laws • Simple Machines • Heat Transfer • Waves • Electricity

  3. Formulas • Velocity= Distance/Time • Acceleration= Final Velocity-Initial Velocity/Time • Force= Mass x Acceleration • Momentum= Mass x Velocity • Kinetic Energy= ½ Mass x (Velocity)¨ • Work= Force x Distance • Power= Work done/Time interval • Specific Heat= Constant x mass x change in temperature

  4. Scientific Method • Research Question: What you want to find out • Identify Variables: What will be changed (IV), what will be affected by the change (DV), and what will remain the same (CV) in the experiment that will be conducted. • Write a Hypothesis: The researcher’s educated guess on what will happen. • Write the Procedure: A detailed account of what you did in the experiment. • Analyze Data: The results from your experiment. • Conclusion: States whether the hypothesis was correct or not and answers the research question.

  5. The Three States Of Matter The three states of matter are… • Solid: Particles are tightly packed together • Liquid: Particles are touching but can move around. • Gas: Particles are far away from one another so they can move around freely.

  6. Five Phases Of Matter • Condensation: Gas turns into liquid. • Sublimation: Solid transitions into gas. • Evaporation: Liquid transforms into gas. • Melting Point: Solid melts into liquid. • Freezing Point: Liquid turns into solid.

  7. Parts Of An Atom • An atom is made out of protons, electrons, and neutrons. • Protons are the positively charged particles within an atom. • Electrons are the negatively charged particles within an atom. • Neutrons are the neutrally charged particles.

  8. Periodic Table • The periodic table consists of all the elements from Hydrogen to Lawrencium. • The periodic table is systemized by Groups and Periods. • Groups are the vertical columns that run across the chart and periods are the horizontal rows that run through the chart. • The elements of the periodic table are metals, nonmetals, metalloids, and the noble gases.

  9. Periodic Table

  10. Solutions • Solutions are when one substance is dissolved into another. • Solvent-Substance that dissolves • Solute-Substance that is dissolved • The two different solution states are: • Unsaturated-it can hold more solute • Saturated- can not have more solute because it will not dissolve it

  11. Mixtures • A mixture can be separated • No new substance is made • Substances maintain their properties • There are two types of mixtures: • Homogeneous-Can’t see the particles • Heterogeneous-Can see the particles

  12. Covalent and Ionic Bonds • An ionic bond is when is when an atom either gains or loses electrons • Ionic bonds only take place between metals and non-metals. • Covalent bonds are the sharing of electrons between two atoms.

  13. Newton’s Three Laws • Newton’s first law states that when an object is in motion it will stay in motion until a force acts upon it as well as an object will stay in rest until a force is acted upon it. • Newton’s second law states that the amount of force used to do something is based upon the object’s mass. • Newton’s third law states that for every action there is an equal and opposite reaction.

  14. Newton’s Three Laws (continued) • First Law • Second Law • Third Law

  15. The Six Simple Machines • Pulley • Wheel and Axle • Lever • Inclined Plane • Wedge • Screw • Compound machines are two or more simple machines combined to make one new machine.

  16. Heat Transfer • Heat-The movement of energy from one place to another • Heat is transferred in three ways: • Conduction-Movement of heat through touch • Convection-Transfer of heat through liquid • Radiation-Passage of heat through the air.

  17. Waves • Waves move energy from one point to another. • There are two types of waves: Mechanical: Waves that need a medium to occur. Electromagnetic: Waves that do not need a medium. • A medium is the matter that causes waves (can be a solid, liquid, or gas). • Waves can be categorized as transversal or longitudinal.

  18. Waves (continued) • Examples of mechanical waves are earthquakes, tsunamis, Sound waves etc. • Examples of electromagnetic waves are microwaves, cell phones, radio waves etc. • Waves can act in different ways: • Reflection- When waves bounce of a surface • Refraction- When waves speed is affected by the medium • Diffraction- When waves go around an object

  19. Electromagnetic Wave Spectrum • The electromagnetic wave spectrum is a scale the frequency of different electromagnetic waves. • It begins with the lowest frequency waves (Radio Waves) and ends with the highest frequency waves (Gamma Rays).

  20. Electricity • Electricity is created by the flow of electrons. • Through electricity three things occur: • Electric charge- When an object has too many or too few electrons • Electric field- The area around the charged object • Static electricity- when an object has a build up of an electric charge

  21. Electricity (continued) • Three ways to charge an object are: • Induction- Charging an object without touching • Contact- charging an object through touch • Polarization- Like charged objects repelling from one another and oppositely charged objects attracting to one another Example of Polarization:

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