# Physical Science

## Chapter 11: Sound

### Solve a Simple Equation

 1 A sonar pulse returns in 2 s from a sunken ship directly below. Find the depth of the ship if the speed of the pulse is 1400 m/s. A) 1400 m B) 1500 m C) 1200 m D) 1100 m 2 A sonar pulse returns in 2.5 s from a sunken ship directly below. Find the depth of the ship if the speed of the pulse is 1250 m/s. A) 1340 m B) 1500 m C) 1640 m D) 1562.5 m 3 A sonar pulse returns in 3 s from a sunken ship directly below. Find the depth of the ship if the speed of the pulse is 1650 m/s. A) 2000 m B) 2475 m C) 2500 m D) 2554 m 4 A sonar pulse returns in 3 s from a sunken ship directly below. Find the depth of the ship if the speed of the pulse is 1600 m/s. A) 2150 m B) 2200 m C) 2400 m D) 2455 m 5 A sonar pulse returns in 4 s from a sunken ship directly below. Find the depth of the ship if the speed of the pulse is 1500 m/s. A) 3000 m B) 3200 m C) 3600 m D) 3800 m 6 Find the speed of a sonar pulse that returns in 3 s from a sunken ship at 1200 m depth. A) 800 m/s B) 850 m/s C) 950 m/s D) 1000 m/s 7 Find the speed of a sonar pulse that returns in 2.5 s from a sunken ship at 1300 m depth. A) 1000 m/s B) 1040 m/s C) 1200 m/s D) 1640 m/s 8 Find the speed of a sonar pulse that returns in 2 s from a sunken ship at 1250 m depth. A) 1100 m/s B) 1200 m/s C) 1250 m/s D) 1300 m/s 9 Find the speed of a sonar pulse that returns in 3 s from a sunken ship at 1500 m depth. A) 1000 m/s B) 1100 m/s C) 1200 m/s D) 1300 m/s 10 Find the speed of a sonar pulse that returns in 4 s from a sunken ship at 1600 m depth. A) 3000 m/s B) 3200 m/s C) 3400 m/s D) 3600 m/s