Physics 1 Questions & Answers

Physics 1 Questions & Answers A bouquet has 30 flowers. The size of the bouquet is decreased by a factor of 3. How many flowers remain? A. 27 B. 0 C. 10 D. 15 - ANSWER: C A force is applied to a surface. If the force is tripled and the surface area over which the force is applied is also tripled, what is the new pressure? A. three times larger than the original B. one third of the original C. six times more than the original D. unchanged - ANSWER: D A pair of waves are in phase. What occurs when these waves interfere? A. reflection B. constructive interference C. refraction D. destructive interference - ANSWER: B A sack contains 6 pounds of flour. The contents of the bag are increased by a factor of 5. How much flour is in the bag? A. 6 pounds B. 11 pounds C. 60 pounds D. 30 pounds - ANSWER: D A sonographer measures the perimeter of an anatomical structure. Which of the following choices is a reasonable value for the measurement? A. 6 cm2 B. 5 cc C. 15 mm