1) If the time period of a sound wave is 0.03 seconds, what is its frequency?If the time period of a sound wave is 0.025 seconds, what is its frequency? a) a) 33.33 Hz b) b) 30 Hz c) c) 0.03 Hz d) d) 3000 Hz 2) If the time period of a sound wave is 0.005 seconds, what is its frequency? a) a) 200 Hz b) b) 500 Hz c) c) 50 Hz d) d) 0.2 Hz 3) If the time period of a sound wave is 0.008 seconds, what is its frequency? a) a) 125 Hz b) b) 800 Hz c) c) 0.008 Hz d) d) 0.125 Hz 4) If the time period of a sound wave is 0.015 seconds, what is its frequency? a) a) 66.67 Hz b) b) 150 Hz c) c) 0.015 Hz d) d) 15 Hz 5) If the time period of a sound wave is 0.006 seconds, what is its frequency? a) a) 166.67 Hz b) b) 600 Hz c) c) 0.006 Hz d) d) 6 Hz 6) If the time period of a sound wave is 0.004 seconds, what is its frequency? a) a) 250 Hz b) b) 400 Hz c) c) 0.004 Hz d) d) 4 Hz 7) If the time period of a sound wave is 0.02 seconds, what is its frequency? a) a) 50 Hz b) b) 25 Hz c) c) 0.02 Hz d) d) 2000 Hz 8) If the time period of a sound wave is 0.007 seconds, what is its frequency? a) a) 142.86 Hz b) b) 70 Hz c) c) 0.007 Hz d) d) 7 Hz 9) If the time period of a sound wave is 0.012 seconds, what is its frequency? a) a) 83.33 Hz b) b) 120 Hz c) c) 0.012 Hz d) d) 12 Hz 10) If the time period of a sound wave is 0.025 seconds, what is its frequency? a) a) 40 Hz b) b) 25 Hz c) c) 0.025 Hz d) d) 2500 Hz

Grade 7

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