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Ch4 IB Physics Vocab Test

Enter the letter for the matching Answer
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1.
Diffraction
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2.
Destructive Interference
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3.
Period
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4.
Principle of Superposition
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5.
Node
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6.
Damping
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7.
Wave Speed
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8.
Electromagnetic Waves
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9.
Antinode
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10.
Wavelength
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11.
Transverse Waves (2)
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12.
Resonance
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13.
Displacement
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14.
Amplitude
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15.
SHM (Simple Harmonic Motion)
A.
the bending and/or spreading of waves when they meet an obstruction or pass through an aperture
B.
the decrease with time of the amplitude of oscillations
C.
the distance along the medium between two successive particles that have the same displacement
D.
a point on a stationary wave where the displacement is a maximum
E.
occurs when two or more waves overlap and their individual displacements add to give a displacement that is less than any of the individual displacements
F.
the time taken for an oscillating system to make one complete oscillation
G.
this occurs when the frequency of forced oscillations is equal to the natural frequency of the system that is being forced
H.
states the displacement at a point where two or more waves meet is the vector sum of the individual displacements of each wave at that point
I.
waves that consist of oscillating electric and magnetic fields; they are produced by the accelerated motion of electric charge
J.
a point on a stationary wave where the displacement is zero
K.
the speed with which energy is carried in the medium by the wave; depends only on the nature and properties of the medium
L.
occurs when the force acting on a system is directed towards the equilibrium position of the system and is proportional to the displacement of the system from equilibrium
M.
the particles of the medium through which the wave travels vibrate at right angles to the direction of travel of the wave (direction of energy propagation)
N.
the maximum displacement of a particle from its equilibrium position when executing SHM; for wave motion it is the maximum displacement of the medium through which the wave travels
O.
distance traveled in a specified directions
Type the Answer that corresponds to the displayed Question.
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16.
Oscillations
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17.
in these types of wave, the source that produces the wave vibrates in the same direction as the direction of travel of the wave i.e. the direction in which the energy carried by the wave is propagated
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18.
in these types of wave the source that produces the wave vibrates at right angles to the direction of travel of the wave i.e. the direction in which the energy carried by the wave is propagated
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19.
occurs when a wave is incident at a boundary between two different media and results in some of the energy of the wave being returned into the medium in which it is traveling before incidence
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20.
the number of complete oscillations a system makes in unit time
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21.
occurs when two or more waves overlap and their individual displacements add to give a displacement that is greater than any of the individual displacements
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22.
the particles of the medium through which the wave travels vibrate in the same direction of the wave (direction of energy propagation)
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23.
the frequency of oscillation of a system that is not subjected to a periodic external force
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24.
oscillations resulting from the application of an external, usually periodic force
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25.
the energy associated with a system subject to stress e.g. a stretched spring

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