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Physics Unit 8 Quizzes (1-3) WITH 100% SURE ANSWERS
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It tends to cancel the amplitude. What effect does destructive interference have on the amplitude of a wave?
Waves that require a medium such as air, water, or another material are called VE
mechanical
____________.
At maximum amplitude, the potential energy of a pendulum is ___ while the
maximum
acceleration and velocity are both zero.
The distance between two corresponding points in consecutive wave crests is called
wavelength
_____.
equilibrium A position of______ in a pendulum means that there is no actual force in effect.
A regular repeated motion caused by the exchange of energy from potential to
simple harmonic motion
kinetic energy and back again is called __ _.
The distance between the center line and the point farthest from the center line in a
amplitude
wave is called the _ _.
sound An example of a mechanical wave is a _____ wave.
transverse Waves that are perpendicular to the line of travel are called ________ waves.
maximum At equilibrium in a pendulum, the potential energy is zero and the velocity is _____ _.
interfere Two waves traveling along the same line will ____ with each other.
infrasonic Sounds below 20 Hz are called ___ _.
magnetic field According to Faraday's law, a varying electric field creates a(n)___ _.
ultrasonic Sounds above 20,000 Hz are called ___ _.
radio Electromagnetic waves with the lowest frequencies are ____ waves.
decibals Loudness is measured in ___ _.
sound Which is NOT an example of an electromagnetic wave?
_______ excite water molecules in the food and causes the food to cook from the
microwaves
inside.
spherical Sound waves radiate in ________ waves.
The electrical and magnetic fields of an electromagnetic wave are ________ to each
perpendicular
other and to the direction of travel.
ultraviolet Exposure to _____ light causes the body to produce vitamin D.
electric charge According to Maxwell's law, a varying magnetic field induces a(n) __ _.
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