6. Which of the following is TRUE about the relationship of force applied to an object and the sound produced? a. The greater force applied to an object, the louder the sound produced. b. The weaker the force applied to an object, the louder the sound produced. C. The greater force applied to an object, the softer the sound produced. d. Force has no effect on the loudness or softness of sound. 7. What happens to sound as you get farther and farther from its source? a. becomes louder b. becomes softer c. becomes flatter then louder d. the same as when it was first created 8. Which of the following will make the loudest sound? a. dropping a pin b. dropping a ballpen c. dropping a paper clip d. dropping a big box on the floor 9. It is perceived as a reflected sound with enough time to be distinguished from the original sound. a. echo b. reverberation c. vibration d. volume 10. Echo has different uses. Which of the following is NOT a situation when echo is used? a. to find large shoals of fish b. to measure the depth of the sea c. to locate a sunken shipwreck or cargo d. to know the composition of materials found in the surroundings​