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midterm for physics
stuff one wll need to know for this class of physics.
26
Physics
10/13/2011

Term
 Ttansformers use ac so there will be the required
Definition
 change in magnetic field for operation
Term
 A mixture of cyan and yellow pigments appears
Definition
 green
Term
 What color }ight is transmitted by a piece of blue glass
Definition
 blue
Term
 The electrical force between charges depends only on the charges
Definition
 magnitude and separation distancel
Term
 The natural frequency of an object depends on its
Definition
 size shape elasticity
Term
 The quality of a musical note has to do with its
Definition
 harmonics
Term
 The shortest plane mirror in which you can see your entire image is
Definition
Term
 Compared to its average speed in air, the average speed of a beam of light in glass is
Definition
 less
Term
 The average speed of light is greatest in
Definition
 red glass
Term
 Wave interference occurs for
Definition
 sound waves,light waves,water waves.
Term
 Compared to ultraviolet waves, the wavelength of infrared waves is
Definition
 longer
Term
 Magnetic field lines about a current-carrying wire
Definition
 circle the wire in closed loops
Term
 Which of the following is not a transverse wave?
Definition
 sound
Term
 The approximate rarrge of human hearing is
Definition
 20-20,000 hertz
Term
 Compared to a sound of 30 decibels, a sound of 60 decibels is
Definition
 1000 times as intense
Term
 the_____________of sound a sound is the power carried per square meter.
Definition
 intensity.
Term
 ______________ colors are any two colors that, when added, produce white light.
Definition
 complementary.
Term
 ___________is the bending of an oblique ray of light when it passes from one transparent medium to another.
Definition
 Refraction
Term
 A/An_____________is the responce of a body when forcing frequency matchs its natural frequency.
Definition
 resonance.
Term
 A/AN_____________ is a partial tone whose frequency is an integer multiple of the fundamental.
Definition
 harmonic
Term
 in general, a state of balance.the state in which no net change of energy occurs.-the straight line that runs through the wavelength graph.
Definition
 equilibrium
Term
 result of superposing different waves, ofton of the same wavelength. constructive ___________ resullts from crest to crest reinforcement. destructive _____________ = crest to through.-when to waves are present at the same time
Definition
 interference
Term
 periodic variaton in loudness of sound-looks like this on a wavelength graph0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Definition
 beat
Term
 change in frequency of a wave of sound or light due to the motion of the source or the reciever.- circles move in a direction
Definition
 doppler effect.
Term
 distance between succesive crests, troughs, or identical parts of waves.
Definition
 wavelength
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