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68 Cards in this Set
- Front
- Back
A DEVICE THAT INCREASES OR DECREASES VOLTAGE IN A POWER LINE IS A
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transformer
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IN PLATE TECTONICS, PLATES SCRAPE PAST EACH OTHER AT TRANFORM FAULT BOUNDARIES. PLATE TETONICS IS AN EXAMPLE OF WHAT KIND OF FRICTION?
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sliding
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A STATIC DISCHARGE DIFFERS FROM AN ELECTRIC CURRENT IN THAT STATIC DISCHARGE _____
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lasts for only a fraction of a second.
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HAS WAVES LONGER THAN MICROWAVES
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radio waves
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SOUND WAVES ARE EXAMPLES OF
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longitudinal waves
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IF THE LEAVES OF AN ELECTROSCOPE SPREAD APART, IT MEANS THAT
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the leaves have received a charge
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AS A ROLLER COASTER MOVES DOWN A HILL WHAT DESCRIBES ITS ENERGY
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it is converted from peotential energy into kinetic energy
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CAN SOUND WAVES TRAVEL THROUGH SOLIDS?
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yes
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LIGHT TRAVELS FASTER IN A GLASS OR A VACUUM?
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vacuum
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A WAVE TRANSPORTS ____________, BUT NOT ______
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energy---matter
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WHAT MAKES LIGHT CHANGE DIRECTION AS IT PASSES FROM AIR TO GLASS?
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refraction
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CAN 2 WAVES OCCUPY THE SAME SPACE AT THE SAME TIME?
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yes
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A WAVE X METERS LONG HAS A SPEED OF Y METERS PER SECOND. THE FREQUENCY OF THE WAVE IS
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y/x
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THE GREATER THE FREQUENCY OF A WAVE THE GREATER THE
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speed of the wave
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RESISTANCE IS MEASURED IN
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ohms
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RADIO WAVES ARE AN EXAMPLE OF ______ WAVES?
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electromaginic waves.
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VISIBLE LIGHT WAVES REQUIRE A _____________ TO TRAVEL
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medium
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CURRENT IS EQUAL TO THE POTENTIAL DIFFERENCE DIVIDED BY THE RESISTANCE, IS KNOWN AS
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Ohm's Law
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A PATH CREATED FOR A CURRENT THAT ALLOWS ONLY ONE ROUTE IS CALLED A
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series current
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THE ATOMS IN A MAGNET ARE LINED UP
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according to their charges
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A CIRCUIT THAT HAS 2 OR MORE SEPARATE PATHS FOR ELECTRONS TO FOLLOW IS A
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parallel circuit
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A MATERIAL THROUGH WHICH ELECTRONS DO NOT READILY FLOW IS
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an insulator
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THE FORCE OF A MAGNET IS STRONGEST AT
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the poles
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ONE SOURCE OF CONSTANT ELECTRIC CURRENT IS A
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dry cell
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THE REGION AROUND A MAGNET WHERE THE MAGNETIC FORCES ACT IS THE
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magnetic field
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ELECTRIC CHARGE THAT HAS BUILT UP IN ONE PLACE IS REFERRED TO AS
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static electricity
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A WAVE HAS A PERIOD OF 0.25 SECONDS. THE FREQUENCY OF THIS WAVE IS
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4
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THE DIFFERENCE BETWEEN VISIBLE LIGHT AND X RAYS IT
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the frequency of X rays is greater
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WHEN CURRENT FLOWS THROUGH A WIRE, WHAT IS CREATED AROUND THE WIRE?
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magnetic field
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AN INSTRUMENT THAT MEASURES THE POTENTIAL DIFFERENC IS
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voltmeter
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THE FUNCTION OF AN ELECTRIC MOTOR IS TO
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change electrical energy to mechanical energy
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A DEVICE DESIGNED TO PEN AN OVERLAODED CIRUCIT AND PREVENT OVERHEATING IS A
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circuit breaker
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A TV THAT NEEDS 0.40 AMPERE OF CURENT IS OPERATED ON A 120-VOLT SERVICE FOR 5.0 HOURS. HOW MUCH ENERGY IS USED?
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0.24 kWh
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THE AMOUNT OF ENERGY IN A PHOTON OF LIGHT IS PROPORTIONAL TO THE
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frequency of the corresponding light wave.
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LIGHT WAVES REQUIRE A
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medium
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WHICH SIMPLE MACHINES ARE FOUND IN A BICYCLE
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lever; wheel and axle
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THE FREQUENCY OF A SOUND WAVE DETERMINES
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the pitch of the sound
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WHAT HAPPENS TO THE VOLTAGE OF THE CIRCUIT WHEN THE CURRENT APPLIED TO THE CIRCUIT INCRESASES AND THE RESISTANCE IS HELD CONTSTANT
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the voltage increases
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LAW OF REFLECTION: WHEN LIGHT RAYS REFLECT OFF A SURFACE THE ANGLE OF INCIDENCE IS _____ TO THE ANGLE OF REFLECTION.
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equal to
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THE RELATIONASHIPBETWEEN MASS, FORCE, AND ACCELERATION IS EXPLAINED BY
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Newton's 2nd law of motion
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DESCRIBE THE DIRECTION OF THE ELECTRIC CURRENT IN AC
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it changes regularly
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WHEN AN OBJECT IS AT REST THE FORCES ACTING ON THE OBJECT
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balance each other
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WHICH TYPE OF ELECTOMAGNETIC WAVES HAS A SLIGHTLY LONGER WAVELENGTHS THAN RED LIGHT?
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infared light
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WHAT IS A STATEMENT REGARDING AN OBJECT FALLING TO EARTH?
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earth pulls on the object, and the object pulls on the Earth
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THE RATE OF CHANGE OF SPEED IN A DIRECTION IS CALLED
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acceleration
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GRAVITATIONAL ATTRACTION BETWEEN 2 OBJECTS IS AFFECTED BY
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mass and distance
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WHEN NASA LAUCHES A ROCKET INTO SPACE WHICH OF NEWTON'S LAW'S DESCRIBES THE FIRING OF THE ROCKET.
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action/reaction
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IF YOU ARE IN A CAR THAT SUDDENLY STOPS, HOW WILL YOUR BODY REACT?
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it will continue to move foreward.
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STYROFOAM IS A GOOD HEAT
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insulator
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THE POTENTIAL ENERGY OF AN ELECTRIC ____________ AS IT MOVES THROUGH A CIRCUIT
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increases
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THE MEASURE OF THE AVERAGE KINETIC ENERGY OF THE PARTICLES IN AN OBJECT CAN BE DESCRIBED BY
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temperature
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LIGHT WAVES ARE WHAT KIND OF WAVES?
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transverse waves
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WHAT IS THE DISADVANTAGE OF USING SOLAR CELLS (solar energy)
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solar energy is not always available
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WHICH TKYPE OF ELECTROMAGNETIC RADIATION IS USED TO KILL CANCER CELLS?
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gamma rays
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LIGHTNING IS
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a very large discharge of static electricity
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THE RATE AT WHICH AN ELECTRICAL DEVICE CONVERTS ENERGY FROM ONE FORM TO ANOTHER IS CALLED
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electrical power
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THE FORCE THAT OPPOSES GRAVITY WHEN A LEAF FALLS IS
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air resistance
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IF IVY WON A 300 METER RACE IN 40 SECONDS, WHAT WAS HER RATE OF SPEED?
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7.5 m/s
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THE COLOR OF VISIBLE LIGHT DEPENDS ON THE
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wavelength of the light.
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SOUND WAVES REQUIRE
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a medium
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A WAVE WITH A FREQUENCY OF 0.5 Hz AND A SPEED OF 10 m/s HAS A WAVELENGTH OF
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20m.
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WHICH TYPE OF ELECTROMAGNETIC WAVES HAS THE HIGHEST FREQUENCY?
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gamma
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WATER WAVES TRANSPORT
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energy, but not water
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WHICH TYPE OF ELECTROMAGNETIC WAVE HAS THE GREATEST WAVELENGTH?
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radio
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A TRAIN OF WAVES IS MOVING AT A SPEED OF 30 m/s. THE FREQUENCY OF THE WAVES IS 10 Hz. WHAT IS THE WAVELENGTH?
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3m
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WHEN LIGHT RAYS REFLECT OFF A ROUGH SURFACE, THEY
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scatter in different directions
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HOW WAS NEIL ARMSTRONG AFFECTED WHEN HE LANDED ON THE MOON? (WEIGHT & MASS)
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his weight changed, his mass did not.
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WHAT IS THE RELATIONSHIP AMONG POWER, CURRENT, AND VOLTAGE (FORMULA)
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P = I x V
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