THE SCIENCES UNIT 1-3

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lauratwinoaks
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227333
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THE SCIENCES UNIT 1-3
Updated:
2013-07-18 17:09:17
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SCIENCES UNIT
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THE SCIENCES UNIT 1-3
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  1. SCIENCE
    TOOL FOR UNDERSTANDING OUR PHYSICAL WORLD AND BIOLOGICAL ENVIRONMENT
  2. SCIENTIFIC METHOD
    A CONTINUOUS PROCESS BY WHICH PEOPLE LEARN ABOUT THE PHYSICAL UNIVERSE & SHARE THE KNOWLEDGE WITH OTHERS
  3. THEORY
    FOMAL IDEA BASED ON MANY OBSERVATIONS, EXPERIMENTS, AND TESTS
  4. PHYSICS DEFINITIONS
    THE STUDY OF MOTION AND MATTER THROUGH TIME AND SPACE
  5. PHYSICS KEY CONCEPTS
    FORCE AND ENERGY
  6. PHYSICS MECHANICS
    MOTIONS OF MATERIAL OBJECTS
  7. NEWTON LAWS
    PREDICT BEHAVIOR OF OBJECTS ON EARTH AND SPACE
  8. SPEED =
    SPEED = VELOCITY = D/T
  9. NEWTONS 1ST LAW
    A MOVING OBJECT WILL CONTINUE MOVING IN A STRAIGHT LINE AND AT A CONSTANT SPEED AND A STATIONARY OBJECT WILL REMAIN AT REST, UNLESS ACTED ON BY AN UNBALANCED FORCE
  10. NEWTONS 2ND LAW
    • THE ACCELERATION PRODUCED ON A BODY BY A FORCE IS PROPORTIONAL TO THE MAGNITUDE OF THE FORCE AND INVERSLY PROPORTIONAL TO THE MASS OF THE OBJECT
    • F=MXA
  11. NEWTONS 3RD LAW AND MOST FAMOUS
    FOR EVERY ACTION THERE IS AN EQUAL AND OPPOSITE REACTION

    FG=G X MASS1 X MASS2/DISTANCE2
  12. KINETIC ENERGY
    THE ENERGY POSSESSED BY A OBJECT DUE TO ITS MOTION
  13. POTENTIAL ENERGY
    THE ENERGY OF AN OBJECT DUE TO ITS POSITION IN SPACE
  14. CHEMICAL ENERGY
    AN ENERGY THAT CAN BE RELEASED DURING A CHEMICAL REACTION
  15. 1ST LAW OF THERMODYNAMICS
    AN ISOLATED SYSTEM ENERGY CAN BE TRANSFORMED BUT CANNOT BE CREATED OR DESTROYED
  16. HEAT TRANSFERS
    • 1. CONDUCTION-METAL
    • 2. CONVECTION-WATER
    • 3. RADIATION-ELECTRIC HEAT
  17. 2ND LAW OF THERMODYNAMICS
    • ENTROPY OF AN ISOLATED SYSTEM NEVER DECREASES
    • -A MEASURE OF DISORDER
  18. 2ND LAW OF THERMODYNAMICS
    3 RULES
    • 1. HEAT FLOWS SPONTANEOUSLY FROM HOT TO COLD BUT NOT COLD TO HOT
    • 2. YOU CANNOT CREATE AN ENGINE THAT DOES NOTHING BUT CONVERT HEAT TO USEFUL WORK
    • 3. EVERY ISOLATED SYSTEM BECOMES MORE DISORDERED WITH TIME
  19. COULOMBS LAW
    • FE=K X {(Q1XQ2)/D2}
    • FE=FORCE
    • K=GIVEN CONSTANT
    • D=DISTANCE
    • Q1=CHARGES
    • Q2=CHARGES
  20. ATOMS
    POSITIVE ELECTRIC CHARGE
    ELECTRONS ARE LOST
  21. ATOMS
    NEGATIVE ELECTRIC CHARGE
    ELECTRONS ARE GAINED
  22. MAGNETISM
    • HAS 2 POLES NORTH AND SOUTH, DIPOLE
    • ATTRACTION BETWEEN OPPOSITE POLES
    • REPULSIVE BETWEEN LIKE POLES
  23. 3 TYPES OF ELECTRIC CIRCUITS
    SIMPLE - 1 LOAD ON SINGLE LOOP OF WIRE

    SERIES - TWO OR MORE LOADS ARE LINKED ALONG A SINGLE LOOP OF WIRE

    PARALLEL - DIFFERENT LOADS ARE SITUATED ON DIFFERENT WIRE LOOPS
  24. MAGNETIC FIELD CAN BE CREATED BY
    MOTIONS OF ELECTRICITY
  25. ELECTRICAL CURRENTS CAN BE PRODUCED BY
    CHANGING MAGNETIC FIELDS
  26. MAXWELLS EQUATIONS
    • 1. COULOMBS LAW: LIKE CHARGES REPEL, UNLIKE ATTRACT
    • 2. THERE ARE NO MAGNETIC MONOPOLES IN NATURE
    • 3. MAGNETIC PHENOMENA CAN BE PRODUCED BY ELECTRICAL EFFECTS
    • ELECTRICAL PHENOMENA CAN BE PRODUCED BY MAGNETIC EFFECTS
  27. PROPERTIES OF WAVES
    WAVELENGTH - DISTANCE BETWEEN CRESTS

    FREQUENCY - NUMBER OF WAVE CRESTS THAT GO BY A GIVEN POINT EVERY SECOND

    VELOCITY - SPEED AND DIRECTION OF THE WAVE CREST ITSELF

    AMPLITUDE IS THE HEIGHT OF THE WAVE CREST ABOVE THE UNDISTURBED POSITION
  28. THE RELATIONSHIP AMONG WAVELENGTH, VELOCITY, AND FREQUENCY
    V = λ X F
  29. TWO KINDS OF WAVES
    • TRANSVERSE
    • LONGITUDINAL
  30. MAGNETIC FIELD CAN BE PRODUCED BY
    MOVING ELECTRICAL CHARGES
  31. ELECTRICAL FIELD/CURRENTS CAN BE PRODUCED BY
    CHANGING MAGNETIC FIELDS
  32. DIPOLE
    • NORTH/SOUTH
    • 2 POLES
  33. MONOPOLE
    DOES NOT EXIST
  34. SPEED OF LIGHT IS
    A CONSTANT FOR ALL TYPES OF WAVES
  35. DOPPLER EFFECT
    DESCRIBES THE WAY THE FREQUENCY OF A WAVE APPEARS TO CHANGE FROM A MOVING SOURCE

    IE  AMBULANCE
  36. ELECTROMAGNETIC WAVES TRANSFER ENERGY
    WITHOUT TRANSFERRING MASS

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