dexheimer
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| show | stays the same
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| show | force divided by area
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| The SI unit of pressure is the | show 🗑
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| According to Pascals principle any change on a confine fluid | show 🗑
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| show | weight of the displaced fluid
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| show | pressure exerted by the fluid decreases
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| show | decreases
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| show | solids
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| show | elasticity
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| show | plasma
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| show | cohesive
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| show | increases
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| Frequency is________related to period | show 🗑
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| show | meters
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| Wave speed equals________times wavelength | show 🗑
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| show | normal
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| show | transverse
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| show | wave
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| The time interval during which wave motion repeats is the | show 🗑
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| show | frequency
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| show | the medium through which it travels
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| show | a node
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| show | refraction
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| show | diffraction
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| show | 1/2
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| The frequency of a beat is the _________of the frequencies of the two waves that produce it | show 🗑
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| show | reflection
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| Sound is an example of what kind of wave | show 🗑
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| An an approaching ambulance passes an unmoving observer, what happens to the apparent pitch of the sound emitted by the ambulance siren, as heard by the observer? | show 🗑
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| show | the Doppler shift
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| show | frequency
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| If two notes have a frequency ratio of 1:2, the notes differ by a | show 🗑
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| show | electromagnetic
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| Which of the following characteristics of light has a defined value | show 🗑
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| show | luminous flux
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| show | 1/r^2
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| show | translucent
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| show | opaque
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| What kind of process is the mixing of primary colors of light to produce other colors | show 🗑
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| The clear-edged quality of the shadow that results when you put your hand into the path of light from a flashlight illustrates that light travels in a _________ line | show 🗑
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| A primary pigment reflects _____primary colors from white light | show 🗑
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| The spectrum of colors produced by an oil film on water is due to the __________by a_______ | show 🗑
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| show | perpendicular
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| From which service would light rays undergo regular reflection | show 🗑
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| show | light travels through two mediums that have optical densities
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| show | the rays speed up
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| The index of refraction of the transparent mineral beryl is approximately 1.6. Transparent quartz has an index of 1.54. Diamond has an index of 2.42. Based on these facts, which statement is true? | show 🗑
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| The angle of incidence is always______the angle of reflection | show 🗑
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| show | slower
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| show | 1.00
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| A vacuum has an index of refraction that is _______than that of any substance | show 🗑
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| In a glass prism, the index of refraction for red light is ______that than for violet light | show 🗑
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| show | chromatic
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| Concave lenses have________focal lengths | show 🗑
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| Rays parallel to the principal axis of a ________mirror converge at the focal point | show 🗑
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| show | magnification
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| show | half the radius of curvature
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| show | light rays converge at the image
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| If an object is between a concave mirror and its focal point, the image will be | show 🗑
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| show | real and smaller than the object
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| Diffractions is_______for sound waves than for light waves | show 🗑
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| For a ________experiment, the wavelength equals wavelength(d)/L | show 🗑
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| The destructive and constructive interference of light that passes through two closely spaced slits produced | show 🗑
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| The bending of waves around the edge of barriers is called | show 🗑
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| The paths of light waves that come from two slits and that interfere to form first-order lines | show 🗑
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| When light passes through a single slit, which of the following appears? | show 🗑
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| A pair of closely spaced stars can be seen as a single star because a telescope lens has limited | show 🗑
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| show | increasing the size of the lens
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| Bits of paper stick to a plastic comb that has been rubbed because of | show 🗑
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| show | insulator
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| Touching an electroscope with a negatively charged rod is an example of charging by | show 🗑
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| show | separation of charge
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| show | charges exert force on other charges over a distance
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| The forces that charge qA exerts on charge qB is opposite and ________the force that charge qB exerts on qA | show 🗑
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| Electric force is a vector quantity because it has magnitude and | show 🗑
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| show | the leaves will spread father apart
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| An example of a separation of charge on neutral objects is | show 🗑
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| show | opposite
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| show | uniform electric field
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| show | grounding
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| show | outer
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| A ________is made up of two conductors separated by an insulator | show 🗑
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| show | force per unit charge
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| The force on a test charge in an electric field is | show 🗑
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| The strength of the force on a charge in an electric field depends on | show 🗑
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| As an electric field becomes stronger, the field lines should be drawn | show 🗑
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| show | a Van de Graff machine
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| A charge pump creates a flow of charges particles or | show 🗑
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| show | electric circuit
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| show | kinetic energy
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| The rate at which energy is transferred is | show 🗑
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| show | ampere
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| The ____________of a conductor can be determined if potential difference and current are known | show 🗑
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| A device that has constant resistance and appears to be independent of the __________is said to obey Ohm’s law | show 🗑
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| show | increasing voltage or decreasing resistance
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| A device that measures the amount of current in a circuit is a | show 🗑
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| show | thermal
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| Electricity is carried long distances at high voltages because | show 🗑
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| show | kilowatt-hours
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| show | current
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| show | less than
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| A _________should have a very low resistance so that it causes the largest possible changes in currents and voltages in the circuit | show 🗑
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| To measure the ________across a resistor, connect a voltmeter in parallel with the resistor | show 🗑
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| show | one
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| show | equal to the current in the generator and equal to the current in the ammeter
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| A series circuit contains four resistors. What is the equivalent resistance of the circuit | show 🗑
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| A series circuit has a 120-V generator but requires a 60-V potential source. To achieve the desired potential, a_________can be used | show 🗑
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| show | three
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| In an electric circuit,____________are switches that act as safety devices | show 🗑
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| show | magnitude
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| When two parallel wires carry currents in opposite directions, their magnetic fields___________each other | show 🗑
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| A device used to measure very small electric currents is an | show 🗑
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| In an electric motor, current is reversed every_______turn | show 🗑
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| The speed of an electric motor can be controlled by_________the current flow | show 🗑
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| An object that is magnetic has | show 🗑
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| show | proportional
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| show | increase
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| show | electrons
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| show | perpendicular to
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| An electric current is generated in a wire when the wire is moved so that it _________magnetic field lines | show 🗑
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| show | perpendicular
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| show | velocity
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| show | electrical
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| show | mechanical
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| According to Lenz’s law, the direction of induced current is such that the magnetic field resulting from induced current__________the change in field that caused the current | show 🗑
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| If a generator produces only a small current, then the opposing force on the armature will be small and the armature will be ______to turn | show 🗑
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| When a motor is first turned on, a __________current flows because of the low resistance of the motor | show 🗑
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| If the N-pole of a magnet is moved toward the right end of a coil wire, the right end of the coil becomes an N-pole and_______the magnet | show 🗑
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| When a piece of metal is moved through a magnetic field, __________are generated in the metal | show 🗑
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| show | step-down
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| In a wire coild, the faster the current changes, the _________the opposing EMF | show 🗑
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| When does self-inductance become a factor? | show 🗑
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| Describe the relationship between the amplitude of a wave and the energy that is transferred by the wave | show 🗑
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| show | Air is a good conductor of sound, the trumpets sends vibrations through the air and moves molecules
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| What is the appearance of a red dress in a closed room illuminated only by green light? | show 🗑
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| show | reg reflection happens on a smooth surface and parallel rays reflect the same, Diffuse reflection is when the rays are sent in different directions because of an uneven surface
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| Explain why electric potential energy is larger when 2 like charges are closer than two unlike | show 🗑
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| show | Yes the electricity would run through the metal frame of the car, then to the eart, the people are surrounded by insulators
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| How is it possible to use more than one electric appliance at one time in a house | show 🗑
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| show | more appliances in use reduce the total resistance because they are wired in parallel, As resistance decreases, current increases.
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| If all electrons create magnetic fields, why aren’t all materials magnets? | show 🗑
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| show | above-into the page, below-out of the page
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| Compare operation of an electric motor with a generator | show 🗑
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| What happens to primary voltage when the number of turns on the secondary transformer coil is doubled? | show 🗑
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
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Created by:
rangerlove13
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