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[{"id":246829,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 18:02:10","updated_at":"2017-07-19 18:24:09","questionName":"A 100 Hz sound wave is traveling through the air. If we increase the frequency to 200 Hz, this will _____ the wavelength.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":7,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246823,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 17:48:29","updated_at":"2017-07-19 18:24:09","questionName":"When you displace an object from its equilibrium position and the force pushing it back toward equilibrium is _____, the resulting motion is simple harmonic motion.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":1,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246835,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 18:19:52","updated_at":"2017-07-19 18:24:09","questionName":"We describe sound waves in terms of pressure. Given this, for a standing wave in a tube open at each end, the open ends of the tube are __________.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":13,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246836,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 18:22:41","updated_at":"2017-07-19 18:24:09","questionName":"The interference of two sound waves of similar amplitude but slightly different frequencies produces a loud-soft-loud oscillation we call __________.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":14,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246831,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 18:07:06","updated_at":"2017-07-19 18:24:09","questionName":"The units we use to measure the sound intensity level are _____.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":9,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246828,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 18:01:28","updated_at":"2017-07-19 18:24:09","questionName":"When the particles of a medium move with simple harmonic motion, this means the wave is a __________.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":6,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246833,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 18:12:53","updated_at":"2017-07-19 18:24:09","questionName":"A point on a standing wave that is always stationary is a(n) _____.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":11,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246824,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 17:49:45","updated_at":"2017-07-19 18:24:09","questionName":"A mass is bobbing up and down on a spring. If you increase the amplitude of the motion, how does this affect the time for one oscillation?","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":2,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246827,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 18:00:15","updated_at":"2017-07-19 18:24:09","questionName":"Which of the following is a longitudinal wave?","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":5,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246834,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 18:19:02","updated_at":"2017-07-19 18:24:09","questionName":"You can decrease the frequency of a standing wave on a string by __________.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":12,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246832,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 18:12:10","updated_at":"2017-07-19 18:24:09","questionName":"When two waves overlap, the displacement of the medium is the sum of the displacements of the two individual waves. This is the principle of __________.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":10,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246822,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 17:47:13","updated_at":"2017-07-19 18:24:09","questionName":"The type of function that describes simple harmonic motion is _______.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":0,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246826,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 17:55:22","updated_at":"2017-07-19 18:24:09","questionName":"If you drive an oscillator, it will have the largest amplitude if you drive it at its _______ frequency.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":4,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246830,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 18:06:18","updated_at":"2017-07-19 18:24:09","questionName":"A lens collects light and focuses it into a small spot. This increases the ________ of the light wave.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":8,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":246825,"quiz_id":"13675","answer_id":null,"answerType_id":"0","created_at":"2017-07-19 17:54:01","updated_at":"2017-07-19 18:24:09","questionName":"A mass tied to the end of a 1.0 m-long string is swinging back and forth. From its lowest point, the mass moves 4 cm to the right, swings back through its lowest point to stop 4 cm to the left of its lowest point, then swings back to where it started. One complete swing takes about 2 s. If the amplitude of motion is doubled, so the mass swings 8 cm to one side and then the other, the period of the motion will be _____.","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":3,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null}]