Eva is on the beach. She estimates that 2 waves pass her each second, and that the crest of the waves are 12 cm apart. Calculate the speed, in meter per second of the waves.
0.42 m/s
1 of 5
A pulse of ultrasound takes 4.5 seconds to travel from the submarine to the sea bed and back again. If the speed of sound in seawater in 1520 m/s, how far away is the submarine from the sea bed
3420 m/s
2 of 5
Bill counts 5 waves on a pond in 10 s. The distance between them is 80 cm. What is their speed?
40m/s
3 of 5
. A pulse of ultrasound take 0.00005 s (0.05ms) to be sent from one point of the stomach to the baby's head and back again.The speed of sound inside the soft tissue in the body is 1540m/s workout the distance of the baby's head from the scanner.
0.0385m/s
4 of 5
Paul plays a note of wavelength 25 cm on his synthesiser. He knows the speed of sound is 340 m/s in air. What is its frequency?
1630 Hz
5 of 5
Other cards in this set
Card 2
Front
A pulse of ultrasound takes 4.5 seconds to travel from the submarine to the sea bed and back again. If the speed of sound in seawater in 1520 m/s, how far away is the submarine from the sea bed
Back
3420 m/s
Card 3
Front
Bill counts 5 waves on a pond in 10 s. The distance between them is 80 cm. What is their speed?
Back
Card 4
Front
. A pulse of ultrasound take 0.00005 s (0.05ms) to be sent from one point of the stomach to the baby's head and back again.The speed of sound inside the soft tissue in the body is 1540m/s workout the distance of the baby's head from the scanner.
Back
Card 5
Front
Paul plays a note of wavelength 25 cm on his synthesiser. He knows the speed of sound is 340 m/s in air. What is its frequency?
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