
POPS Sound Magnetism and Energy
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30 questions
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- Q1A mosquito beats its wings at 600 wingbeats per second. The 600 wingbeats per second is thewavelengthfrequencyamplitudespeed30s
- Q2The frequency of a sound wave is heard as thevolumepitchwavelengthspeed30s
- Q3The amplitude of a wavelength is heard as thevolumewavelengthspeedpitch30s
- Q4The speed of sound is 340 m/s. What distance does sound travel in 8 seconds?348 m2720 m332 m42.5 m30s
- Q5The speed of sound is 340 m/s. How much time does it take sound to travel 1000 m?0.34 s3.4 s2.94 s340000 s30s
- Q6When you extend a trombone, you make it longer - thisdecreases pitchdecreases volumeincreases pitchincreases volume30s
- Q7Compared to a long guitar string, a short guitar string will soundhigher volumelower pitchlower volumehigher pitch30s
- Q8When a motorcycle drives by you, the pitch goes from high to low. This is known asresonancewavelengthinterferencethe doppler effect30s
- Q9When an up-wave meets a down-wave, what happens?They add - destructive interferenceThey add - constructive interferenceThey cancel - destructive interferenceThey cancel - constructive interference30s
- Q10When an opera singer sings a loud note at the natural frequency of a glass, the glass can shatter. This is known asinterferenceresonancewavelengthdoppler effect30s
- Q11When the north pole of a magnet is held near the north pole of another magnet, theyresolveconferattractrepel30s
- Q12What do all magnetic objects have in common?resonancea compassmade of ironspinning electrons30s
- Q13Which way does magnetic field point (think of the lab)away from W towards Eaway from S toward Naway from N towards Saway from E towards W30s
- Q14Can a frog be magneticYes, but only if all of its electrons spins are alignedYes, but only if it eats a lot of ironNo30s
- Q15What type of energy does a moving object havepotentialinternalkineticchemical30s